{"id":1614,"date":"2020-06-20T13:13:31","date_gmt":"2020-06-20T05:13:31","guid":{"rendered":"http:\/\/blog.ywdevops.cn\/?p=1614"},"modified":"2025-07-23T16:21:46","modified_gmt":"2025-07-23T08:21:46","slug":"list","status":"publish","type":"post","link":"https:\/\/blog.ywdevops.cn\/index.php\/2020\/06\/20\/list\/","title":{"rendered":"python\u5e8f\u5217\u4e4b\u5217\u8868"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728python\u4e2d\uff0c\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\u90fd\u653e\u5728\u4e00\u5bf9\u4e2d\u62ec\u53f7\u5185\uff0c\u4e24\u4e2a\u76f8\u90bb\u5143\u7d20\u901a\u8fc7\u9017\u53f7\u5206\u9694\uff0c\u53ef\u4ee5\u5c06\u6574\u6570\u3001\u5b9e\u6570\u3001\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4\u7b49\u4efb\u4f55\u7c7b\u578b\u7684\u5185\u5bb9\u653e\u5165\u5217\u8868\u4e2d\uff0c\u5e76\u4e14\u5217\u8868\u4e2d\u7684\u5143\u7d20\u7c7b\u578b\u53ef\u4ee5\u4e0d\u540c(\u5f02\u6784)\u3002\u5217\u8868\u662f\u6709\u5e8f\u7684\u5bf9\u8c61\u96c6\u5408<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6784\uff1a\u5217\u8868\u4e2d\u7684\u5143\u7d20\u7c7b\u578b\u90fd\u662f\u4e00\u6837\uff0c\u6bd4\u5982golang\u4e2d\u7684\u6570\u7ec4\u4e2d\u5143\u7d20\u7c7b\u578b\u5fc5\u987b\u4e00\u81f4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f02\u6784\uff1a\u5217\u8868\u4e2d\u5143\u7d20\u7c7b\u578b\u53ef\u4ee5\u4e0d\u4e00\u6837\uff0c\u6bd4\u5982Python\u5217\u8868\u4e2d\u7684\u5143\u7d20\u7c7b\u578b\u53ef\u4ee5\u4e0d\u4e00\u81f4<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u4e00<strong>\u3001\u5217\u8868\u7684\u521b\u5efa\u548c\u5220\u9664<\/strong><\/mark><\/p>\n\n\n\n<p class=\"has-very-dark-gray-color has-text-color wp-block-paragraph\">1\u3001\u901a\u8fc7\u8d4b\u503c\u8fd0\u7b97\u7b26\u6765\u521b\u5efa\u5217\u8868\uff1a\u53ef\u901a\u8fc7\u8d4b\u503c\u8fd0\u7b97\u7b26&#8221;=&#8221; \u5c06\u5217\u8868\u8d4b\u503c\u7ed9\u53d8\u91cf\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">listname = [one,two,three,four]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dlistname \u8868\u793a\u5217\u8868\u7684\u540d\u79f0\uff0cone,two,three\u7b49\u8868\u793a\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0c\u4e2a\u6570\u6ca1\u6709\u9650\u5236\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u7684\u5217\u8868\u90fd\u662f\u5408\u6cd5\u7684\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"165\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/31-1.png\" alt=\"\" class=\"wp-image-1615\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/31-1.png 500w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/31-1-300x99.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u6ce8\u610f\uff1a\u5728\u4f7f\u7528\u5217\u8868\u7684\u65f6\u5019\uff0c\u867d\u7136\u53ef\u4ee5\u5c06\u4e0d\u540c\u7c7b\u578b\u7684\u5143\u7d20\u653e\u5165\u5230\u540c\u4e00\u5217\u8868\u4e2d\uff0c\u4f46\u662f\u4e00\u822c\u4e0d\u5efa\u8bae\u8fd9\u6837\u505a\uff0c\u800c\u662f\u5728\u5217\u8868\u4e2d\u53ea\u653e\u4e00\u79cd\u7c7b\u578b\u7684\u6570\u636e\uff0c\u65b9\u4fbf\u7a0b\u5e8f\u7684\u53ef\u8bfb\u6027<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">python\u4e5f\u652f\u6301\u521b\u5efa\u7a7a\u5217\u8868\uff0c\u4f8b\u5982\u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868\uff0c\u4f7f\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">emptylist = []<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u521b\u5efa\u6570\u503c\u5217\u8868\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728Python\u4e2d\u53ef\u4ee5\u4f7f\u7528list()\u51fd\u6570\u6765\u521b\u5efa\u6570\u503c\u5217\u8868\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">list(data)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2ddata\u8868\u793a\u53ef\u4ee5\u8f6c\u6362\u4e3a\u5217\u8868\u7684\u6570\u636e\uff0c\u5176\u7c7b\u578b\u53ef\u4ee5\u662frange\u5bf9\u8c61\u3001\u5143\u7ec4\u3001\u5b57\u7b26\u4e32\u6216\u8005\u5176\u4ed6\u53ef\u8fed\u4ee3\u7c7b\u578b\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u521b\u5efa10\u523020(\u5305\u62ec20)\u4e4b\u95f4\u6240\u6709\u5076\u6570\u7684\u5217\u8868\uff0c\u6267\u884c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">list(range(10,21,2))<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff1alist()\u51fd\u6570\u4e0d\u4ec5\u53ef\u4ee5\u901a\u8fc7range\u5bf9\u8c61\u521b\u5efa\u5217\u8868\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5176\u4ed6\u5bf9\u8c61\u6765\u521b\u5efa\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u5220\u9664\u5217\u8868\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u5df2\u7ecf\u521b\u5efa\u7684\u5217\u8868\uff0c\u5f53\u4e0d\u518d\u4f7f\u7528\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u901a\u8fc7del\u547d\u4ee4\u5220\u9664\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">del listname<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001\u83b7\u53d6\u5217\u8868\u7684\u526f\u672c\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u5c06\u5217\u8868\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u4f46\u662f\u4e0d\u60f3\u51fd\u6570\u4fee\u6539\u5217\u8868\uff0c\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u7684\u526f\u672c\uff0c\u521b\u5efa\u526f\u672c\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">list[ : ]           #\u5207\u7247\u8868\u793a\u6cd5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u521b\u5efa\u526f\u672c\u4e5f\u662f\u5360\u7528\u5185\u5b58\u7684\uff0c\u5982\u975e\u5fc5\u8981\uff0c\u4e0d\u9700\u8981\u521b\u5efa\u526f\u672c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5\u3001\u4e5f\u53ef\u4ee5\u5c06\u5143\u7ec4\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"655\" height=\"148\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/1-14.png\" alt=\"\" class=\"wp-image-18693\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/1-14.png 655w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/1-14-300x68.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/1-14-600x136.png 600w\" sizes=\"auto, (max-width: 655px) 100vw, 655px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"641\" height=\"101\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/2-13.png\" alt=\"\" class=\"wp-image-18694\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/2-13.png 641w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/2-13-300x47.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2025\/07\/2-13-600x95.png 600w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u4e8c\u3001\u8bbf\u95ee\u5217\u8868\u4e2d\u7684\u5143\u7d20<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u6253\u5370\u5217\u8868var\u4e2d\u7684\u5143\u7d20\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"164\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/6-1.png\" alt=\"\" class=\"wp-image-1618\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/6-1.png 500w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/6-1-300x98.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u4e0b\u9762\u4f8b\u5b50\u8868\u793a\u8bbf\u95ee\u5217\u8868\u4e2d\u5012\u6570\u7b2c\u4e00\u4e2a\u5143\u7d20\u548c\u5012\u6570\u7b2c\u4e8c\u4e2a\u5143\u7d20\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"693\" height=\"135\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1-1.png\" alt=\"\" class=\"wp-image-15116\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1-1.png 693w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1-1-300x58.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1-1-600x117.png 600w\" sizes=\"auto, (max-width: 693px) 100vw, 693px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"695\" height=\"70\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2-1.png\" alt=\"\" class=\"wp-image-15117\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2-1.png 695w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2-1-300x30.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2-1-600x60.png 600w\" sizes=\"auto, (max-width: 695px) 100vw, 695px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u68c0\u67e5\u67d0\u4e2a\u503c\u662f\u5426\u5b58\u5728\u4e0e\u5217\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528in\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = &#91;1,2,3,4,5]\nprint(2 in a)   #\u68c0\u67e52\u662f\u5426\u5728\u5217\u8868\u4e2d\uff0c\u8fd4\u56detrue<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5217\u8868\u4e2d\u68c0\u67e5\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u503c\u8fdc\u6bd4\u5728\u5b57\u5178\u548c\u96c6\u5408\u4e2d\u68c0\u67e5\u901f\u5ea6\u6162\uff0c\u56e0\u4e3aPython \u662f\u7ebf\u6027\u626b\u63cf\u5217\u8868\u4e2d\u7684\u503c\uff0c\u4f46\u5728\u5b57\u5178\u548c\u96c6\u5408\u4e2d\uff0c\u5728\u540c\u6837\u7684\u65f6\u95f4\u5185\u8fd8\u53ef\u4ee5\u68c0\u67e5\u5176\u4ed6\u9879(\u57fa\u4e8e\u6563\u5217\u8868)<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u4e09\u3001\u904d\u5386\u5217\u8868<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Python\u4e2d\u5e38\u7528\u7684\u904d\u5386\u5217\u8868\u7684\u65b9\u5f0f\u6709\u4e24\u79cd\uff0c\u4e0b\u9762\u4ecb\u7ecd\u8fd9\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u901a\u8fc7for\u5faa\u73af\u6765\u904d\u5386\u5217\u8868\uff0c\u53ef\u4ee5\u8f93\u51fa\u5217\u8868\u5143\u7d20\u7684\u503c\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>for  item in listname:\n    print(item)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u904d\u5386\u5217\u8868var\u4e2d\u7684\u5143\u7d20\u7684\u503c\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"494\" height=\"141\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-1.png\" alt=\"\" class=\"wp-image-1620\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-1.png 494w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-1-300x86.png 300w\" sizes=\"auto, (max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u4f7f\u7528for\u5faa\u73af\u548cenumerate\u53ef\u4ee5\u540c\u65f6\u8f93\u51fa\u7d22\u5f15\u548c\u5143\u7d20\u7684\u503c\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>for  index,item in enumerate(listname):\n    print(index,number)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u6253\u5370\u5217\u8868var\u7684\u7d22\u5f15\u4ee5\u53ca\u5143\u7d20\u7684\u503c\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"148\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-1.png\" alt=\"\" class=\"wp-image-1621\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-1.png 499w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-1-300x89.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u56db\u3001\u6dfb\u52a0\u3001\u4fee\u6539\u548c\u5220\u9664\u5217\u8868\u5143\u7d20<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6dfb\u52a0\u4fee\u6539\u548c\u5220\u9664\u5217\u8868\u5143\u7d20\u4e5f\u79f0\u4e3a\u66f4\u65b0\u5217\u8868\uff0c\u5b9e\u9645\u5f00\u53d1\u4e2d\u7ecf\u5e38\u9700\u8981\u66f4\u65b0\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u6dfb\u52a0\u5143\u7d20<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u9762\u4ecb\u7ecd\u8fc7\u901a\u8fc7\u52a0\u53f7&#8221;+&#8221;\u53ef\u4ee5\u5b9e\u73b0\u62fc\u63a5\u5e8f\u5217\uff0c\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u6dfb\u52a0\u5143\u7d20\uff0c\u4f46\u662f\u6b64\u65b9\u6cd5\u901f\u5ea6\u8f83\u6162\uff0c\u5728\u5b9e\u9645\u6dfb\u52a0\u5143\u7d20\u8fc7\u7a0b\u4e2d\u5efa\u8bae\u4f7f\u7528append()\u65b9\u6cd5\u6765\u6dfb\u52a0\uff0c\u6b64\u65b9\u6cd5\u7528\u4e8e\u5728\u5217\u8868\u7684\u672b\u5c3e\u6dfb\u52a0\u5143\u7d20\u3002\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">listname.append(obj)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dlistname \u4e3a\u5217\u8868\u7684\u540d\u79f0\uff0cobj\u4e3a\u6dfb\u52a0\u5230\u5217\u8868\u672b\u5c3e\u7684\u5143\u7d20<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u6253\u5370\u5217\u8868var\u7684\u5f53\u524d\u957f\u5ea6\u4ee5\u53ca\u6dfb\u52a0\u5143\u7d20\u4e4b\u540e\u7684\u957f\u5ea6\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"497\" height=\"154\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/33-1.png\" alt=\"\" class=\"wp-image-1627\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/33-1.png 497w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/33-1-300x93.png 300w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u6ce8\u610f\uff1apython\u4e2d\u8fd8\u63d0\u4f9b\u4e86\u65b9\u6cd5insert()\u4e5f\u53ef\u4ee5\u5411\u5217\u8868\u4e2d\u6dfb\u52a0\u5143\u7d20\uff0c\u6b64\u65b9\u6cd5\u53ef\u4ee5\u5411\u6307\u5b9a\u4f4d\u7f6e\u524d\u6dfb\u52a0\u5143\u7d20\uff0c\u4f46\u662f\u6548\u7387\u4e0d\u9ad8\uff0c\u56e0\u6b64\u4e00\u822c\u4e0d\u63a8\u8350\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5411\u5217\u8868\u4e2d\u7b2c\u4e09\u4e2a\u4f4d\u7f6e\u63d2\u5165\u5143\u7d20\uff0c\u6267\u884c\u547d\u4ee4\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"696\" height=\"158\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/7.png\" alt=\"\" class=\"wp-image-15112\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/7.png 696w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/7-300x68.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/7-600x136.png 600w\" sizes=\"auto, (max-width: 696px) 100vw, 696px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"694\" height=\"92\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/8.png\" alt=\"\" class=\"wp-image-15113\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/8.png 694w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/8-300x40.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/8-600x80.png 600w\" sizes=\"auto, (max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8ff0\u4ecb\u7ecd\u7684\u53ea\u662f\u5c06\u4e00\u4e2a\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff0c\u5982\u679c\u8981\u5c06\u4e00\u4e2a\u5217\u8868\u4e2d\u7684\u5168\u90e8\u5143\u7d20\u6dfb\u52a0\u5230\u53e6\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528extend()\u65b9\u6cd5\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">listname.extend(seq)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dlistname\u8868\u793a\u5217\u8868\u540d\u5b57\uff0cseq\u4e3a\u8981\u6dfb\u52a0\u7684\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5c06\u5217\u8868varr\u7684\u5185\u5bb9\u8ffd\u52a0\u5230\u5217\u8868var\u91cc\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"504\" height=\"170\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/35-1.png\" alt=\"\" class=\"wp-image-1629\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/35-1.png 504w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/35-1-300x101.png 300w\" sizes=\"auto, (max-width: 504px) 100vw, 504px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u6ce8\u610f\uff1a\u4e0a\u56fe\u4e2d\u9700\u8981\u5148\u6267\u884cvar.extend(varr)\uff0c\u7136\u540e\u6253\u5370var\uff0c\u4e0d\u53ef\u4ee5\u76f4\u63a5\u5728print()\u91cc\u8ffd\u52a0\uff0c\u4f1a\u62a5\u9519none\uff0c\u5982\uff1aprint(var.extend(varr))\u662f\u4e0d\u53ef\u4ee5\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u4fee\u6539\u5143\u7d20\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">(1)\u3001\u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u8be5\u5143\u7d20\uff0c\u7136\u540e\u91cd\u65b0\u8d4b\u503c<\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u4fee\u6539\u5217\u8868var\u4e2d\u7b2c\u4e09\u4e2a\u5143\u7d20\u7684\u503c\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"150\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/36-1.png\" alt=\"\" class=\"wp-image-1631\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/36-1.png 491w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/36-1-300x92.png 300w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">(2)\u3001\u901a\u8fc7\u5207\u7247\u6765\u4fee\u6539\u5217\u8868\u4e2d\u5143\u7d20<\/mark>\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"692\" height=\"112\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/1-1.jpg\" alt=\"\" class=\"wp-image-16923\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/1-1.jpg 692w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/1-1-300x49.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/1-1-600x97.jpg 600w\" sizes=\"auto, (max-width: 692px) 100vw, 692px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"80\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/2-1.jpg\" alt=\"\" class=\"wp-image-16924\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/2-1.jpg 691w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/2-1-300x35.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/2-1-600x69.jpg 600w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u5c06a[0:3] = [] ,\u90a3\u4e48\u5c31\u53ef\u4ee5\u5220\u9664a\u5207\u7247\u7684\u524d\u4e09\u4e2a\u5143\u7d20<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u5220\u9664\u5143\u7d20\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5220\u9664\u5143\u7d20\u6709\u4e24\u79cd\u60c5\u51b5\uff0c\u4e00\u79cd\u662f\u6839\u636e\u7d22\u5f15\u8fdb\u884c\u5220\u9664\uff0c\u4e00\u79cd\u662f\u6839\u636e\u5143\u7d20\u503c\u8fdb\u884c\u5220\u9664\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u4f7f\u7528del\u5173\u952e\u5b57\u6839\u636e\u7d22\u5f15\u5220\u9664\uff1a<\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7del\u547d\u4ee4\uff0c\u5e76\u4e14\u6307\u5b9a\u7d22\u5f15\u503c\u8fdb\u884c\u5220\u9664\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"501\" height=\"166\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/37.png\" alt=\"\" class=\"wp-image-1632\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/37.png 501w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/37-300x99.png 300w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u4f7f\u7528remove\u6839\u636e\u5143\u7d20\u503c\u5220\u9664\uff1a<\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8981\u5220\u9664\u4e00\u4e2a\u4e0d\u786e\u5b9a\u4f4d\u7f6e\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u901a\u8fc7\u5143\u7d20\u503c\u8fdb\u884c\u5220\u9664\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u5bf9\u8c61\u7684remove()\u65b9\u6cd5\u8fdb\u884c\u5220\u9664(remove\u4f1a\u5220\u9664\u6307\u5b9a\u6570\u636e\u503c\u7684\u7b2c\u4e00\u6b21\u51fa\u73b0\u7684\u5143\u7d20).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5220\u9664\u5217\u8868var\u4e2d\u7684hello\u5143\u7d20\uff0c\u6267\u884c\u547d\u4ee4\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"145\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/38.png\" alt=\"\" class=\"wp-image-1633\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/38.png 499w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/38-300x87.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4f7f\u7528remove()\u65b9\u6cd5\u8fdb\u884c\u5220\u9664\u5143\u7d20\u4e4b\u524d\uff0c\u6700\u597d\u5148\u4f7f\u7528\u65b9\u6cd5count()\u6765\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b58\u5728\uff0c\u5982\u679c\u5b58\u5728\u5219\u5220\u9664\uff0c\u4e0a\u8ff0\u7684\u4ee3\u7801\u6539\u9020\u540e\u7684\u5185\u5bb9\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"498\" height=\"170\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/5-1.png\" alt=\"\" class=\"wp-image-1635\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/5-1.png 498w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/5-1-300x102.png 300w\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u6ce8\uff1acount()\u51fd\u6570\u8868\u793a\u5143\u7d20\u5728\u5217\u8868\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\uff0c\u4f7f\u7528remove()\u5220\u9664\u5143\u7d20\u503c\u540e\u4e5f\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u88ab\u5220\u9664\u7684\u503c\uff0c\u53ea\u662f\u8fd9\u4e2a\u503c\u4e0d\u5728\u5217\u8868\u4e2d\u4e86<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u4f7f\u7528pop\u65b9\u6cd5\u6839\u636e\u7d22\u5f15\u5220\u9664\uff1a<\/mark><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">pop\u65b9\u6cd5\u6839\u636e\u7d22\u5f15\u503c\u6765\u4ece\u73b0\u6709\u5217\u8868\u4e2d\u5220\u9664\u5143\u7d20\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff0c\u5982\u679cpop()\u4e2d\u6ca1\u6709\u6307\u5b9a\u7d22\u5f15\uff0c\u90a3\u4e48\u9ed8\u8ba4\u5220\u9664\u5217\u8868\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u5982\u679c\u5217\u8868\u4e3a\u7a7a\u6216\u8005\u6307\u5b9a\u4e86\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u7d22\u5f15\u503c\u90a3\u4e48\u5c06\u4f1a\u62a5\u9519<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u4f8b\u5b50\u6f14\u793a\u4f7f\u7528pop()\u65b9\u6cd5\uff0c\u5e76\u4e0d\u8bbe\u7f6e\u7d22\u5f15\uff0c\u9ed8\u8ba4\u5c06\u5220\u9664\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"698\" height=\"152\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1.png\" alt=\"\" class=\"wp-image-15100\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1.png 698w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1-300x65.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/1-600x131.png 600w\" sizes=\"auto, (max-width: 698px) 100vw, 698px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6267\u884c\u7ed3\u679c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"697\" height=\"95\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2.png\" alt=\"\" class=\"wp-image-15102\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2.png 697w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2-300x41.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/2-600x82.png 600w\" sizes=\"auto, (max-width: 697px) 100vw, 697px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u4f8b\u5b50\u8868\u793a\u5220\u9664\u7b2c3\u4e2a\u7d22\u5f15\u5bf9\u5e94\u7684\u5143\u7d20\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"693\" height=\"156\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/3.png\" alt=\"\" class=\"wp-image-15104\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/3.png 693w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/3-300x68.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/3-600x135.png 600w\" sizes=\"auto, (max-width: 693px) 100vw, 693px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"694\" height=\"85\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/4.png\" alt=\"\" class=\"wp-image-15105\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/4.png 694w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/4-300x37.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/4-600x73.png 600w\" sizes=\"auto, (max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u4f8b\u5b50\u8868\u793a\u5220\u9664\u7d22\u5f15\u4e3a6\u7684\u5143\u7d20\uff0c\u7ed3\u679c\u663e\u793a\u7d22\u5f15\u8d8a\u754c\u4e86\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"693\" height=\"154\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/5.png\" alt=\"\" class=\"wp-image-15107\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/5.png 693w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/5-300x67.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/5-600x133.png 600w\" sizes=\"auto, (max-width: 693px) 100vw, 693px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"694\" height=\"166\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/6.png\" alt=\"\" class=\"wp-image-15109\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/6.png 694w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/6-300x72.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2023\/10\/6-600x144.png 600w\" sizes=\"auto, (max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">pop()\u65b9\u6cd5\u5220\u9664\u5143\u7d20\u540e\u8fd8\u53ef\u4ee5\u8bbf\u95ee\u88ab\u5220\u9664\u7684\u5143\u7d20\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"686\" height=\"160\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/5-3.jpg\" alt=\"\" class=\"wp-image-16054\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/5-3.jpg 686w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/5-3-300x70.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/5-3-600x140.jpg 600w\" sizes=\"auto, (max-width: 686px) 100vw, 686px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"688\" height=\"117\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/6-1.jpg\" alt=\"\" class=\"wp-image-16056\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/6-1.jpg 688w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/6-1-300x51.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/6-1-600x102.jpg 600w\" sizes=\"auto, (max-width: 688px) 100vw, 688px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">del\u548cpop()\u65b9\u6cd5\u600e\u4e48\u9009\u62e9\uff1a\u5982\u679c\u8981\u4ece\u5217\u8868\u4e2d\u5220\u9664\u4e00\u4e2a\u5143\u7d20\uff0c\u5e76\u4e14\u4e0d\u5728\u4f7f\u7528\u5b83\uff0c\u5c31\u9009\u62e9del\u8bed\u53e5\uff0c\u5982\u679c\u5220\u9664\u540e\u8fd8\u9700\u8981\u7ee7\u7eed\u4f7f\u7528\u5b83\uff0c\u90a3\u4e48\u5c31\u9009\u62e9pop()\u65b9\u6cd5<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u4f7f\u7528clear()\u6765\u6e05\u7a7a\u5217\u8868\uff1a<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"694\" height=\"157\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/3-1.jpg\" alt=\"\" class=\"wp-image-16929\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/3-1.jpg 694w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/3-1-300x68.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/3-1-600x136.jpg 600w\" sizes=\"auto, (max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"690\" height=\"72\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/4-1.jpg\" alt=\"\" class=\"wp-image-16930\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/4-1.jpg 690w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/4-1-300x31.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/4-1-600x63.jpg 600w\" sizes=\"auto, (max-width: 690px) 100vw, 690px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u4e94\u3001\u5bf9\u5217\u8868\u8fdb\u884c\u7edf\u8ba1\u548c\u8ba1\u7b97<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u83b7\u53d6\u6307\u5b9a\u5143\u7d20\u51fa\u73b0\u7684\u6b21\u6570\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\u5217\u8868\u5bf9\u8c61\u7684count()\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u6307\u5b9a\u5143\u7d20\u5728\u5217\u8868\u4e2d\u51fa\u73b0\u7684\u6b21\u6570<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u83b7\u53d6\u5217\u8868var\u4e2dhello\u5143\u7d20\u51fa\u73b0\u7684\u6b21\u6570\uff0c\u6267\u884c\u547d\u4ee4\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"503\" height=\"161\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-2.png\" alt=\"\" class=\"wp-image-1637\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-2.png 503w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-2-300x96.png 300w\" sizes=\"auto, (max-width: 503px) 100vw, 503px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u83b7\u53d6\u6307\u5b9a\u5143\u7d20\u51fa\u73b0\u7684\u4e0b\u6807\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\u5217\u8868\u5bf9\u8c61\u7684index()\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u6307\u5b9a\u5143\u7d20\u9996\u6b21\u51fa\u73b0\u7684\u4e0b\u6807<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u83b7\u53d6\u5217\u8868var\u4e2d\u5143\u7d20hello\u9996\u6b21\u51fa\u73b0\u7684\u4e0b\u6807\uff0c\u6267\u884c\u547d\u4ee4\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"536\" height=\"185\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-2.png\" alt=\"\" class=\"wp-image-1638\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-2.png 536w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-2-300x104.png 300w\" sizes=\"auto, (max-width: 536px) 100vw, 536px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u7edf\u8ba1\u6570\u503c\u5217\u8868\u7684\u5143\u7d20\u548c\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">python\u4e2d\uff0c\u63d0\u4f9b\u4e86sum()\u65b9\u6cd5\u7528\u4e8e\u7edf\u8ba1\u6570\u503c\u5217\u8868\u4e2d\u5143\u7d20\u7684\u548c\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">sum(listname[,start])<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dlistname\u8868\u793a\u8981\u7edf\u8ba1\u7684\u5217\u8868\uff0cstart\u8868\u793a\u7edf\u8ba1\u7684\u7ed3\u679c\u5728\u52a0\u4e0a\u8fd9\u4e2a\u6570\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\u9ed8\u8ba4\u4e3a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u7edf\u8ba1\u5217\u8868var\u4e2d\u7684\u6570\u503c\u603b\u548c\uff0c\u7136\u540e\u518d\u52a0\u4e0a9\uff0c\u5176\u4e2d9\u8868\u793a\u4e0a\u9762\u7684start\u53c2\u6570<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"487\" height=\"141\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/9-1.png\" alt=\"\" class=\"wp-image-1639\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/9-1.png 487w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/9-1-300x87.png 300w\" sizes=\"auto, (max-width: 487px) 100vw, 487px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001\u5c06\u5143\u7ec4\u4e2d\u7684\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"144\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/9.jpg\" alt=\"\" class=\"wp-image-16915\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/9.jpg 691w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/9-300x63.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/9-600x125.jpg 600w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"692\" height=\"74\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/10.jpg\" alt=\"\" class=\"wp-image-16916\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/10.jpg 692w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/10-300x32.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/05\/10-600x64.jpg 600w\" sizes=\"auto, (max-width: 692px) 100vw, 692px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\uff1a\u5217\u8868\u53ef\u4ee5\u52a0\u5143\u7ec4\uff0c\u4f46\u662f\u53cd\u8fc7\u6765\u5143\u7ec4\u4e0d\u53ef\u4ee5\u52a0\u5217\u8868\uff0c\u56e0\u4e3a\u5143\u7ec4\u4e0d\u53ef\u53d8<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">\u516d\u3001\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">python\u4e2d\u63d0\u4f9b\u4e24\u79cd\u5e38\u7528\u7684\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528\u5217\u8868\u5bf9\u8c61\u7684sort()\u65b9\u6cd5\uff0c\u4f7f\u7528\u5185\u7f6e\u7684sorted\u51fd\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u4f7f\u7528\u5217\u8868\u5bf9\u8c61\u7684sort()\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1alistname.sort(key=none,reverse=False)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u660e\uff1alistname\u8868\u793a\u8981\u8fdb\u884c\u6392\u5e8f\u7684\u5217\u8868\uff0ckey\u8868\u793a\u5728\u6bcf\u4e2a\u5143\u7d20\u4e2d\u63d0\u53d6\u4e00\u4e2a\u7528\u4e8e\u6bd4\u8f83\u7684\u952e(\u4f8b\u5982\uff1akey=str.lower\u8868\u793a\u5728\u6392\u5e8f\u7684\u65f6\u5019\u4e0d\u533a\u5206\u5927\u5c0f\u5199)\uff0creverse\u4e3a\u53ef\u9009\u53c2\u6570\uff0c\u5982\u679c\u4e3atrue\uff0c\u8868\u793a\u964d\u5e8f\u6392\u5217\uff0c\u5982\u679c\u662ffalse\u8868\u793a\u5347\u5e8f\u6392\u5217\uff0c\u9ed8\u8ba4\u4e3a\u5347\u5e8f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5bf9\u5217\u8868var\u8fdb\u884c\u6392\u5e8f\uff0c\u6267\u884c\u547d\u4ee4\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"183\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/16-1.png\" alt=\"\" class=\"wp-image-1642\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/16-1.png 491w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/16-1-300x112.png 300w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\u4f7f\u7528\u7684\u662f\u5bf9\u6570\u503c\u8fdb\u884c\u6392\u5e8f\uff0c\u5982\u679c\u4f7f\u7528sort()\u65b9\u6cd5\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u6392\u5e8f\uff0c\u6b64\u65f6\u91c7\u7528\u7684\u89c4\u5219\u662f\u5148\u5bf9\u5927\u5199\u5b57\u6bcd\u8fdb\u884c\u6392\u5e8f\uff0c\u7136\u540e\u5bf9\u5c0f\u5199\u5b57\u6bcd\u8fdb\u884c\u6392\u5e8f\uff0c\u5982\u679c\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u9700\u8981\u6307\u5b9akey\u53c2\u6570<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5bf9\u5217\u8868var\u8fdb\u884c\u6392\u5e8f\uff0c\u6267\u884c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"497\" height=\"170\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/17-2.png\" alt=\"\" class=\"wp-image-1643\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/17-2.png 497w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/17-2-300x103.png 300w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u6ce8\u610f\uff1a\u5728\u8fdb\u884c\u6392\u5e8f\u7684\u65f6\u5019\uff0csort()\u5bf9\u4e2d\u6587\u7684\u652f\u6301\u4e0d\u597d\uff0c\u56e0\u6b64\u5bf9\u4e2d\u6587\u6392\u5e8f\u7684\u65f6\u5019\uff0c\u4e0d\u8981\u4f7f\u7528sort()\u65b9\u6cd5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u4f7f\u7528\u5185\u7f6e\u7684sorted()\u51fd\u6570\u5b9e\u73b0\u6392\u5e8f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">python\u4e2d\u63d0\u4f9b\u4e86\u5185\u7f6e\u51fd\u6570sorted()\u51fd\u6570\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u7528\u8be5\u51fd\u6570\u6392\u5e8f\u540e\uff0c\u539f\u5217\u8868\u4e2d\u7684\u5143\u7d20\u987a\u5e8f\u4e0d\u53d8\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">sorted(listname,key=none,reverse=False)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dlistname\u8868\u793a\u5217\u8868\u540d\u79f0\uff0c key\u8868\u793a\u5728\u6bcf\u4e2a\u5143\u7d20\u4e2d\u63d0\u53d6\u4e00\u4e2a\u7528\u4e8e\u6bd4\u8f83\u7684\u952e(\u4f8b\u5982\uff1akey=str.lower\u8868\u793a\u5728\u6392\u5e8f\u7684\u65f6\u5019\u4e0d\u533a\u5206\u5927\u5c0f\u5199)\uff0creverse\u4e3a\u53ef\u9009\u53c2\u6570\uff0c\u5982\u679c\u4e3atrue\uff0c\u8868\u793a\u964d\u5e8f\u6392\u5217\uff0c\u5982\u679c\u662ffalse\u8868\u793a\u5347\u5e8f\u6392\u5217 \uff0c\u9ed8\u8ba4\u4e3a\u5347\u5e8f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5bf9\u5217\u8868var\u548cvarr\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u7528sorted\u51fd\u6570\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"523\" height=\"358\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/18-1.png\" alt=\"\" class=\"wp-image-1646\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/18-1.png 523w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/18-1-300x205.png 300w\" sizes=\"auto, (max-width: 523px) 100vw, 523px\" \/><\/figure>\n\n\n\n<p class=\"has-luminous-vivid-amber-background-color has-background wp-block-paragraph\">\u6ce8\u610f\uff1a\u4f7f\u7528sort()\u65b9\u6cd5\u548csorted()\u51fd\u6570\u90fd\u53ef\u4ee5\u5bf9\u5217\u8868\u8fdb\u884c\u6392\u5e8f\uff0c\u4f46\u662fsort()\u4f1a\u6539\u53d8\u539f\u5217\u8868\u7684\u5143\u7d20\u6392\u5217\u987a\u5e8f\uff0c\u4f7f\u7528sorted()\u4f1a\u5efa\u7acb\u4e00\u4e2a\u539f\u5217\u8868\u7684\u526f\u672c\uff0c\u8be5\u526f\u672c\u4e3a\u6392\u5e8f\u540e\u7684\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e03\u3001\u5217\u8868\u63a8\u5bfc\u5f0f(\u5217\u8868\u89e3\u6790)\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u53ef\u4ee5\u5feb\u901f\u751f\u6210\u4e00\u4e2a\u5217\u8868\uff0c\u6216\u8005\u6839\u636e\u67d0\u4e2a\u5217\u6210\u751f\u6210\u6ee1\u8db3\u6307\u5b9a\u9700\u6c42\u7684\u5217\u8868\uff0c\u51cf\u5c11\u4ee3\u7801\u5de5\u4f5c\u91cf\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u751f\u6210\u6307\u5b9a\u8303\u56f4\u7684\u6570\u503c\u5217\u8868\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">list = [expression for var in range]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">list\u8868\u793a\u751f\u6210\u7684\u5217\u8868\u540d\u79f0\uff0cexpression\u8868\u8fbe\u5f0f\uff0c\u7528\u4e8e\u751f\u6210\u5b58\u50a8\u5230\u5217\u8868\u4e2d\u7684\u503c\uff0c\u63a5\u4e0b\u6765\u662f\u4e00\u4e2afor\u5faa\u73af\uff0c\u7528\u4e8e\u7ed9\u8868\u8fbe\u5f0f\u63d0\u4f9b\u503c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u8ba1\u7b970-9\u7684\u6570\u7684\u5e73\u65b9\u6839\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"89\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/7-4.jpg\" alt=\"\" class=\"wp-image-16070\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/7-4.jpg 691w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/7-4-300x39.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/7-4-600x77.jpg 600w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"694\" height=\"69\" src=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/8-2.jpg\" alt=\"\" class=\"wp-image-16071\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/8-2.jpg 694w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/8-2-300x30.jpg 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2024\/01\/8-2-600x60.jpg 600w\" sizes=\"auto, (max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u4e0a\u56fe\uff1afor\u5faa\u73af\u4e2d\u7684value\u5c31\u662f\u63d0\u4f9b\u7ed9\u8868\u8fbe\u5f0fvalue **\u7684\u503c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u6839\u636e\u5217\u8868\u751f\u6210\u6307\u5b9a\u9700\u6c42\u7684\u5217\u8868\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">newlist = [expression for var in list]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dnewlist\u8868\u793a\u65b0\u5217\u8868\uff0cexpression\u8868\u8fbe\u5f0f\uff0c\u7528\u4e8e\u8ba1\u7b97\u65b0\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0cvar\u4e3a\u53d8\u91cf\uff0c\u503c\u4e3a\u540e\u9762\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0clist\u8868\u793a\u7528\u4e8e\u751f\u6210\u65b0\u5217\u8868\u7684\u539f\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5b9a\u4e49\u4e00\u4e2a\u8bb0\u5f55\u5546\u54c1\u4ef7\u683c\u7684\u8868\uff0c\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\u751f\u6210\u4e00\u4e2a\u5168\u90e8\u5546\u54c1\u62535\u6298\u7684\u65b0\u5217\u8868\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"149\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/5-2.png\" alt=\"\" class=\"wp-image-1651\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/5-2.png 490w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/5-2-300x91.png 300w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u4ece\u5217\u8868\u4e2d\u9009\u62e9\u7b26\u5408\u6761\u4ef6\u7684\u5143\u7d20\u7ec4\u6210\u65b0\u7684\u5217\u8868\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">newlist = [expression  for var in list if codition]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dnewlist\u8868\u793a\u65b0\u7684\u5217\u8868\uff0cexpression\u8868\u8fbe\u5f0f\uff0c\u7528\u4e8e\u8ba1\u7b97\u65b0\u5217\u8868\u4e2d\u7684\u5143\u7d20\uff0cvar\u4e3a\u53d8\u91cf\uff0c\u503c\u4e3a\u540e\u9762\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\uff0clist\u7528\u4e8e\u751f\u6210\u65b0\u5217\u8868\u7684\u539f\u5217\u8868\uff0ccodition\u4e3a\u6761\u4ef6\u8868\u8fbe\u5f0f\uff0c\u7528\u4e8e\u7b5b\u9009\u6761\u4ef6<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u5b9a\u4e49\u4e00\u4e2a\u8bb0\u5f55\u5546\u54c1\u4ef7\u683c\u7684\u8868\uff0c\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\u751f\u6210\u4e00\u4e2a\u5546\u54c1\u4ef7\u683c\u9ad8\u4e8e1000\u7684\u5217\u8868\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"145\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/6-2.png\" alt=\"\" class=\"wp-image-1652\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/6-2.png 499w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/6-2-300x87.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u516b\u3001\u4e8c\u7ef4\u5217\u8868\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001\u76f4\u63a5\u5b9a\u4e49\u4e00\u4e2a\u4e8c\u7ef4\u5217\u8868<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728python\u4e2d\uff0c\u4e8c\u7ef4\u5217\u8868\u5c31\u662f\u5305\u542b\u5217\u8868\u7684\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a[[1,2,3],[&#8220;hello&#8221;,&#8221;world&#8221;],[&#8220;ni&#8221;,&#8221;hao&#8221;]]\u5185\u90e8\u7684\u6bcf\u4e2a\u5143\u7d20(\u5217\u8868)\u4e4b\u95f4\u4f7f\u7528\u9017\u53f7\u5206\u9694\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d[1,2,3]\u8868\u793a\u4e8c\u7ef4\u5217\u8868\u7684\u7b2c\u4e00\u884c\uff0c[&#8220;hello&#8221;,&#8221;world&#8221;]\u8868\u793a\u4e8c\u7ef4\u5217\u8868\u7684\u7b2c\u4e8c\u884c\uff0c[&#8220;ni&#8221;,&#8221;world&#8221;]\u8868\u793a\u4e8c\u7ef4\u5217\u8868\u7684\u7b2c\u4e09\u884c\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001\u4f7f\u7528\u5d4c\u5957\u7684for\u5faa\u73af\u521b\u5efa<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u521b\u5efa\u4e00\u4e2a\u5305\u542b4\u884c5\u5217\u7684\u4e8c\u7ef4\u5217\u8868\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"498\" height=\"133\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-3.png\" alt=\"\" class=\"wp-image-1655\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-3.png 498w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/7-3-300x80.png 300w\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u521b\u5efa<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u4e5f\u53ef\u4ee5\u521b\u5efa\u4e8c\u7ef4\u5217\u8868\uff0c\u6b64\u65b9\u6cd5\u6bd4\u8f83\u7b80\u6d01\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\u521b\u5efa\u4e00\u4e2a\u5305\u542b4\u884c5\u5217\u7684\u4e8c\u7ef4\u5217\u8868\uff0c\u5982\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"508\" height=\"168\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-3.png\" alt=\"\" class=\"wp-image-1656\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-3.png 508w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/06\/8-3-300x99.png 300w\" sizes=\"auto, (max-width: 508px) 100vw, 508px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6269\u5c55\uff1a\u5728python\u4e2dlist()\u51fd\u6570\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u5217\u8868\uff0c\u5217\u8868\u5bf9\u8c61\u7684reverse()\u65b9\u6cd5\u7528\u4e8e\u5bf9\u5217\u8868\u8fdb\u884c\u9006\u5e8f\u6392\u5e8f\uff0c\u5373\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u79fb\u52a8\u5230\u7b2c\u4e00\u4e2a\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728python\u4e2d\uff0c\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\u90fd\u653e\u5728\u4e00\u5bf9\u4e2d\u62ec\u53f7\u5185\uff0c\u4e24\u4e2a\u76f8\u90bb\u5143\u7d20\u901a\u8fc7\u9017\u53f7\u5206\u9694\uff0c\u53ef\u4ee5\u5c06\u6574\u6570\u3001\u5b9e\u6570\u3001\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001 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