{"id":991761,"date":"2024-12-27T08:31:47","date_gmt":"2024-12-27T00:31:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/991761.html"},"modified":"2024-12-27T08:31:49","modified_gmt":"2024-12-27T00:31:49","slug":"%e5%a6%82%e4%bd%95%e6%b8%85%e7%a9%bapython%e5%88%97%e8%a1%a8%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/991761.html","title":{"rendered":"\u5982\u4f55\u6e05\u7a7apython\u5217\u8868\u5185\u5bb9"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25065914\/1077b71d-83c0-4a9d-aafc-49da7ae3c83c.webp\" alt=\"\u5982\u4f55\u6e05\u7a7apython\u5217\u8868\u5185\u5bb9\" \/><\/p>\n<p><p> <strong>\u6e05\u7a7aPython\u5217\u8868\u7684\u5185\u5bb9\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528clear()\u65b9\u6cd5\u3001\u5c06\u5217\u8868\u91cd\u65b0\u8d4b\u503c\u4e3a\u4e00\u4e2a\u7a7a\u5217\u8868\u3001\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u6216\u4f7f\u7528del\u5173\u952e\u5b57\u3002\u63a8\u8350\u4f7f\u7528clear()\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u66f4\u76f4\u89c2\u4e14\u6027\u80fd\u8f83\u4f18\u3002<\/strong><\/p>\n<\/p>\n<p><p>Python\u5217\u8868\u662f\u4e00\u4e2a\u591a\u7528\u9014\u7684\u6570\u636e\u7ed3\u6784\uff0c\u652f\u6301\u591a\u79cd\u64cd\u4f5c\u6765\u7ba1\u7406\u5176\u4e2d\u7684\u5143\u7d20\u3002\u5f53\u9700\u8981\u6e05\u7a7a\u5217\u8868\u4e2d\u7684\u6240\u6709\u5185\u5bb9\u65f6\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u8fd8\u80fd\u63d0\u5347\u6267\u884c\u6548\u7387\u3002\u4ee5\u4e0b\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u53ca\u5176\u4f7f\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001CLEAR()\u65b9\u6cd5<\/p>\n<\/p>\n<p><p><code>clear()<\/code>\u65b9\u6cd5\u662fPython 3.3\u53ca\u4ee5\u4e0a\u7248\u672c\u4e2d\u4e3a\u5217\u8868\u63d0\u4f9b\u7684\u4e00\u79cd\u5185\u7f6e\u65b9\u6cd5\uff0c\u7528\u4e8e\u79fb\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5<\/strong><br \/><code>clear()<\/code>\u65b9\u6cd5\u662f\u6700\u76f4\u63a5\u7684\u6e05\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u660e\u786e\u5730\u544a\u8bc9\u6211\u4eec\u8fd9\u4e2a\u64cd\u4f5c\u7684\u610f\u56fe\u3002\u8c03\u7528\u6b64\u65b9\u6cd5\u540e\uff0c\u5217\u8868\u53d8\u5f97\u7a7a\u65e0\u4e00\u7269\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>my_list.clear()<\/p>\n<p>print(my_list)  # \u8f93\u51fa\uff1a[]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u6027\u80fd\u4f18\u52bf<\/strong><br \/>\u5728\u6d89\u53ca\u5230\u5927\u5217\u8868\u65f6\uff0c<code>clear()<\/code>\u65b9\u6cd5\u6bd4\u5176\u4ed6\u65b9\u6cd5\u66f4\u4e3a\u9ad8\u6548\u3002\u5b83\u662f\u4e13\u4e3a\u6e05\u7a7a\u64cd\u4f5c\u8bbe\u8ba1\u7684\uff0c\u56e0\u6b64\u6267\u884c\u6548\u7387\u8f83\u9ad8\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e8c\u3001\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868<\/p>\n<\/p>\n<p><p>\u5c06\u5217\u8868\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u662f\u53e6\u4e00\u79cd\u6e05\u7a7a\u5217\u8868\u7684\u5e38\u7528\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u76f4\u89c2\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u5176\u5728\u5f15\u7528\u65b9\u9762\u7684\u5f71\u54cd\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5<\/strong><br \/>\u901a\u8fc7\u5c06\u5217\u8868\u91cd\u65b0\u8d4b\u503c\u4e3a<code>[]<\/code>\uff0c\u53ef\u4ee5\u6709\u6548\u6e05\u7a7a\u5217\u8868\u3002\u4e0d\u8fc7\uff0c\u8fd9\u79cd\u65b9\u5f0f\u4f1a\u6539\u53d8\u5217\u8868\u5bf9\u8c61\u7684\u5f15\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>my_list = []<\/p>\n<p>print(my_list)  # \u8f93\u51fa\uff1a[]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><br \/>\u5982\u679c\u5217\u8868\u5728\u5176\u4ed6\u5730\u65b9\u4e5f\u88ab\u5f15\u7528\uff0c\u91cd\u65b0\u8d4b\u503c\u4f1a\u5bfc\u81f4\u539f\u59cb\u5217\u8868\u5bf9\u8c61\u4ecd\u7136\u4fdd\u7559\u5728\u5185\u5b58\u4e2d\uff0c\u53ea\u6709\u5f53\u524d\u53d8\u91cf\u6307\u5411\u4e86\u4e00\u4e2a\u65b0\u7684\u7a7a\u5217\u8868\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e09\u3001\u4f7f\u7528\u5207\u7247\u64cd\u4f5c<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u5207\u7247\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u6e05\u7a7a\u5217\u8868\uff0c\u540c\u65f6\u4fdd\u6301\u5217\u8868\u5bf9\u8c61\u7684\u5f15\u7528\u4e0d\u53d8\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5<\/strong><br \/>\u5207\u7247\u64cd\u4f5c\u901a\u8fc7\u5217\u8868\u7684\u4e0b\u6807\u8bbf\u95ee\u548c\u8d4b\u503c\uff0c\u53ef\u4ee5\u5c06\u5217\u8868\u5185\u5bb9\u6e05\u7a7a\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>my_list[:] = []<\/p>\n<p>print(my_list)  # \u8f93\u51fa\uff1a[]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u9002\u7528\u573a\u666f<\/strong><br \/>\u5982\u679c\u5217\u8868\u88ab\u591a\u4e2a\u53d8\u91cf\u5f15\u7528\uff0c\u5e76\u4e14\u9700\u8981\u4fdd\u6301\u6240\u6709\u5f15\u7528\u7684\u540c\u6b65\u66f4\u65b0\uff0c\u8fd9\u79cd\u65b9\u6cd5\u662f\u975e\u5e38\u9002\u5408\u7684\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u56db\u3001DEL\u5173\u952e\u5b57<\/p>\n<\/p>\n<p><p><code>del<\/code>\u5173\u952e\u5b57\u53ef\u4ee5\u5220\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u6216\u5220\u9664\u6574\u4e2a\u5217\u8868\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5<\/strong><br \/>\u901a\u8fc7<code>del<\/code>\u5173\u952e\u5b57\uff0c\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u5220\u9664\u5217\u8868\u4e2d\u7684\u90e8\u5206\u6216\u5168\u90e8\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>del my_list[:]<\/p>\n<p>print(my_list)  # \u8f93\u51fa\uff1a[]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4e0eclear()\u7684\u533a\u522b<\/strong><br \/>\u4f7f\u7528<code>del<\/code>\u5220\u9664\u5217\u8868\u4e2d\u6240\u6709\u5143\u7d20\u65f6\uff0c\u4e0e<code>clear()<\/code>\u65b9\u6cd5\u6548\u679c\u76f8\u540c\u3002\u4f46<code>del<\/code>\u4e5f\u53ef\u4ee5\u5220\u9664\u6574\u4e2a\u5217\u8868\u5bf9\u8c61\uff0c\u800c<code>clear()<\/code>\u53ea\u80fd\u6e05\u7a7a\u5185\u5bb9\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e94\u3001\u603b\u7ed3\u4e0e\u5efa\u8bae<\/p>\n<\/p>\n<p><p>\u5728\u9009\u62e9\u65b9\u6cd5\u65f6\uff0c\u5efa\u8bae\u4f18\u5148\u4f7f\u7528<code>clear()<\/code>\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4ec5\u66f4\u5177\u53ef\u8bfb\u6027\uff0c\u800c\u4e14\u5728\u6027\u80fd\u4e0a\u4e5f\u66f4\u5177\u4f18\u52bf\u3002\u5bf9\u4e8e\u9700\u8981\u4fdd\u6301\u5217\u8868\u5bf9\u8c61\u5f15\u7528\u4e0d\u53d8\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u6216<code>del<\/code>\u5173\u952e\u5b57\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u5bf9\u6bd4\u4e0d\u540c\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\uff0c\u9009\u62e9\u6700\u5408\u9002\u7684\u6e05\u7a7a\u5217\u8868\u7684\u65b9\u5f0f\u3002\u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u5e94\u5f53\u5728\u4ee3\u7801\u4e2d\u4fdd\u6301\u4e00\u81f4\u6027\u548c\u7b80\u6d01\u6027\uff0c\u4ee5\u4fbf\u4e8e\u540e\u671f\u7684\u7ef4\u62a4\u548c\u7406\u89e3\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u6709\u6548\u5220\u9664Python\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff1f<\/strong><br \/>\u8981\u6e05\u7a7a\u4e00\u4e2aPython\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>clear()<\/code>\u65b9\u6cd5\uff0c\u5b83\u4f1a\u76f4\u63a5\u5220\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u5217\u8868\u5c06\u53d8\u4e3a\u7a7a\u5217\u8868\u3002\u53e6\u4e00\u79cd\u65b9\u5f0f\u662f\u4f7f\u7528\u5207\u7247\u8d4b\u503c\uff0c\u4f8b\u5982<code>my_list[:] = []<\/code>\uff0c\u8fd9\u540c\u6837\u80fd\u591f\u5b9e\u73b0\u6e05\u7a7a\u5217\u8868\u7684\u76ee\u7684\u3002\u8fd8\u53ef\u4ee5\u901a\u8fc7\u91cd\u65b0\u8d4b\u503c\u7684\u65b9\u5f0f\uff0c\u6bd4\u5982<code>my_list = []<\/code>\uff0c\u4f46\u8fd9\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u5728\u539f\u5217\u8868\u4e0a\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p><strong>\u6e05\u7a7a\u5217\u8868\u5bf9\u5185\u5b58\u7684\u5f71\u54cd\u662f\u4ec0\u4e48\uff1f<\/strong><br \/>\u6e05\u7a7a\u5217\u8868\u901a\u5e38\u4e0d\u4f1a\u5bf9\u5185\u5b58\u9020\u6210\u8d1f\u62c5\uff0c\u56e0\u4e3aPython\u7684\u5783\u573e\u56de\u6536\u673a\u5236\u4f1a\u81ea\u52a8\u5904\u7406\u4e0d\u518d\u5f15\u7528\u7684\u5bf9\u8c61\u3002\u5f53\u4f60\u4f7f\u7528<code>clear()<\/code>\u6216\u5207\u7247\u8d4b\u503c\u7684\u65b9\u6cd5\u6e05\u7a7a\u5217\u8868\u65f6\uff0c\u539f\u6765\u7684\u5217\u8868\u5bf9\u8c61\u4ecd\u7136\u5b58\u5728\uff0c\u4f46\u5176\u5185\u5bb9\u88ab\u5220\u9664\u3002\u5982\u679c\u4f60\u4f7f\u7528<code>my_list = []<\/code>\uff0c\u539f\u6765\u7684\u5217\u8868\u5bf9\u8c61\u4f1a\u88ab\u5783\u573e\u56de\u6536\uff0c\u91ca\u653e\u5185\u5b58\u3002<\/p>\n<p><strong>\u6e05\u7a7a\u5217\u8868\u540e\uff0c\u5982\u4f55\u786e\u8ba4\u5217\u8868\u5df2\u7ecf\u4e3a\u7a7a\uff1f<\/strong><br \/>\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u6761\u4ef6\u5224\u65ad\u6765\u786e\u8ba4\u5217\u8868\u662f\u5426\u4e3a\u7a7a\u3002\u4f7f\u7528<code>if not my_list:<\/code>\u53ef\u4ee5\u6709\u6548\u68c0\u67e5\u5217\u8868\u662f\u5426\u5df2\u7ecf\u6e05\u7a7a\u3002\u5f53\u5217\u8868\u6ca1\u6709\u4efb\u4f55\u5143\u7d20\u65f6\uff0c\u8fd9\u4e2a\u6761\u4ef6\u5c06\u8fd4\u56deTrue\u3002\u6b64\u5916\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528<code>len(my_list) == 0<\/code>\u6765\u5224\u65ad\u5217\u8868\u7684\u957f\u5ea6\u662f\u5426\u4e3a\u96f6\uff0c\u8fbe\u5230\u786e\u8ba4\u5217\u8868\u72b6\u6001\u7684\u76ee\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u6e05\u7a7aPython\u5217\u8868\u7684\u5185\u5bb9\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528clear()\u65b9\u6cd5\u3001\u5c06\u5217\u8868\u91cd\u65b0\u8d4b\u503c\u4e3a\u4e00\u4e2a\u7a7a\u5217\u8868\u3001\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u6216\u4f7f [&hellip;]","protected":false},"author":3,"featured_media":991770,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/991761"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=991761"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/991761\/revisions"}],"predecessor-version":[{"id":991772,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/991761\/revisions\/991772"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/991770"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=991761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=991761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=991761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}