{"id":970355,"date":"2024-12-27T05:25:21","date_gmt":"2024-12-26T21:25:21","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/970355.html"},"modified":"2024-12-27T05:25:23","modified_gmt":"2024-12-26T21:25:23","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e6%98%be%e7%a4%ba%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/970355.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u663e\u793a\u5217\u8868"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24193731\/3435daa8-8648-47e5-a84b-87e21766afaf.webp\" alt=\"python\u4e2d\u5982\u4f55\u663e\u793a\u5217\u8868\" \/><\/p>\n<p><p> \u5728Python\u4e2d\uff0c\u663e\u793a\u5217\u8868\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c<strong>\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u6253\u5370\u3001\u4f7f\u7528\u5faa\u73af\u904d\u5386\u3001\u5217\u8868\u89e3\u6790\u7b49\u65b9\u5f0f\u6765\u663e\u793a\u5217\u8868\u7684\u5185\u5bb9<\/strong>\u3002\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\u7684\u4f7f\u7528\uff0c\u5e76\u4e14\u63a2\u8ba8\u5b83\u4eec\u7684\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u76f4\u63a5\u6253\u5370\u5217\u8868<\/p>\n<\/p>\n<p><p>\u76f4\u63a5\u4f7f\u7528Python\u7684<code>print()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06\u5217\u8868\u7684\u5185\u5bb9\u6253\u5370\u51fa\u6765\u3002\u8fd9\u79cd\u65b9\u6cd5\u6700\u7b80\u5355\u5feb\u6377\uff0c\u9002\u5408\u5feb\u901f\u67e5\u770b\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>print(my_list)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c<strong>Python\u4f1a\u5c06\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\u4ee5\u5b57\u7b26\u4e32\u7684\u5f62\u5f0f\u663e\u793a\u51fa\u6765<\/strong>\uff0c\u5e76\u4e14\u4f1a\u4fdd\u7559\u5217\u8868\u7684\u7ed3\u6784\uff0c\u5305\u62ec\u65b9\u62ec\u53f7\u548c\u9017\u53f7\u3002\u56e0\u6b64\uff0c\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u9002\u7528\u4e8e\u8c03\u8bd5\u548c\u7b80\u5355\u7684\u8f93\u51fa\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528\u5faa\u73af\u904d\u5386\u5217\u8868<\/p>\n<\/p>\n<p><p>\u867d\u7136<code>print()<\/code>\u51fd\u6570\u53ef\u4ee5\u76f4\u63a5\u8f93\u51fa\u6574\u4e2a\u5217\u8868\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u9010\u4e2a\u5904\u7406\u6216\u663e\u793a\u5217\u8868\u4e2d\u7684\u5143\u7d20\u3002\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6765\u904d\u5386\u5217\u8868\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [&#39;apple&#39;, &#39;banana&#39;, &#39;cherry&#39;]<\/p>\n<p>for item in my_list:<\/p>\n<p>    print(item)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f7f\u7528\u5faa\u73af\u904d\u5386\u5217\u8868\u65f6\uff0c<strong>\u53ef\u4ee5\u5bf9\u6bcf\u4e00\u4e2a\u5143\u7d20\u8fdb\u884c\u5355\u72ec\u5904\u7406<\/strong>\uff0c\u8fd9\u5728\u9700\u8981\u9010\u4e2a\u5904\u7406\u5143\u7d20\uff08\u5982\u683c\u5f0f\u5316\u8f93\u51fa\u3001\u6761\u4ef6\u5224\u65ad\u7b49\uff09\u7684\u573a\u666f\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u5217\u8868\u89e3\u6790\uff08List Comprehensions\uff09<\/p>\n<\/p>\n<p><p>\u5217\u8868\u89e3\u6790\u662f\u4e00\u79cd\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5904\u7406\u5217\u8868\u4e2d\u7684\u5143\u7d20\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u65b0\u5217\u8868\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u683c\u5f0f\u5316\u548c\u663e\u793a\u5217\u8868\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>formatted_list = [f&#39;Number: {num}&#39; for num in my_list]<\/p>\n<p>print(formatted_list)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<strong>\u5217\u8868\u89e3\u6790\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u90fd\u7ecf\u8fc7\u4e86\u683c\u5f0f\u5316<\/strong>\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u7b80\u6d01\u800c\u4e14\u9ad8\u6548\uff0c\u9002\u5408\u5728\u9700\u8981\u5bf9\u5217\u8868\u5143\u7d20\u8fdb\u884c\u6279\u91cf\u5904\u7406\u65f6\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u4f7f\u7528<code>join()<\/code>\u65b9\u6cd5\u663e\u793a\u5b57\u7b26\u4e32\u5217\u8868<\/p>\n<\/p>\n<p><p>\u5f53\u5217\u8868\u7684\u5143\u7d20\u90fd\u662f\u5b57\u7b26\u4e32\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>join()<\/code>\u65b9\u6cd5\u5c06\u5b83\u4eec\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u8f93\u51fa\u3002\u8fd9\u79cd\u65b9\u6cd5\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u5c06\u5217\u8868\u5143\u7d20\u4ee5\u7279\u5b9a\u683c\u5f0f\uff08\u5982\u9017\u53f7\u5206\u9694\uff09\u8f93\u51fa\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [&#39;apple&#39;, &#39;banana&#39;, &#39;cherry&#39;]<\/p>\n<p>output = &#39;, &#39;.join(my_list)<\/p>\n<p>print(output)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7<code>join()<\/code>\u65b9\u6cd5\uff0c<strong>\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5217\u8868\u5143\u7d20\u7684\u5206\u9694\u7b26<\/strong>\uff0c\u4ece\u800c\u7075\u6d3b\u5730\u63a7\u5236\u8f93\u51fa\u683c\u5f0f\u3002\u8fd9\u5728\u751f\u6210\u62a5\u544a\u6216\u8f93\u51fa\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4f7f\u7528<code>enumerate()<\/code>\u51fd\u6570\u663e\u793a\u5217\u8868\u5143\u7d20\u53ca\u5176\u7d22\u5f15<\/p>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\uff0c<code>enumerate()<\/code>\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [&#39;apple&#39;, &#39;banana&#39;, &#39;cherry&#39;]<\/p>\n<p>for index, item in enumerate(my_list):<\/p>\n<p>    print(f&#39;Index {index}: {item}&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><code>enumerate()<\/code>\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u7d22\u5f15\u548c\u503c\u7684\u5143\u7ec4\uff0c<strong>\u8fd9\u5bf9\u4e8e\u9700\u8981\u540c\u65f6\u8bbf\u95ee\u5143\u7d20\u548c\u5176\u7d22\u5f15\u7684\u573a\u666f\u975e\u5e38\u6709\u7528<\/strong>\uff0c\u5982\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u67e5\u627e\u7279\u5b9a\u4f4d\u7f6e\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><p>\u516d\u3001\u4f7f\u7528<code>pprint<\/code>\u6a21\u5757\u7f8e\u5316\u8f93\u51fa<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u5d4c\u5957\u5217\u8868\u6216\u8f83\u5927\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f7f\u7528<code>pprint<\/code>\u6a21\u5757\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u663e\u793a\u8f93\u51fa\u3002\u5b83\u4f1a\u81ea\u52a8\u683c\u5f0f\u5316\u6570\u636e\uff0c\u4f7f\u5176\u66f4\u6613\u4e8e\u9605\u8bfb\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from pprint import pprint<\/p>\n<p>nested_list = [[1, 2, 3], [&#39;apple&#39;, &#39;banana&#39;], [True, False]]<\/p>\n<p>pprint(nested_list)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><code>pprint<\/code>\u6a21\u5757\u53ef\u4ee5\u81ea\u52a8\u8c03\u6574\u8f93\u51fa\u683c\u5f0f\uff0c\u4f7f\u5176\u66f4\u52a0\u7f8e\u89c2\uff0c<strong>\u9002\u5408\u7528\u4e8e\u8f93\u51fa\u590d\u6742\u6216\u5d4c\u5957\u6570\u636e\u7ed3\u6784\u7684\u573a\u666f<\/strong>\u3002<\/p>\n<\/p>\n<p><p>\u4e03\u3001\u7ed3\u5408<code>map()<\/code>\u51fd\u6570\u5904\u7406\u548c\u663e\u793a\u5217\u8868\u5143\u7d20<\/p>\n<\/p>\n<p><p><code>map()<\/code>\u51fd\u6570\u53ef\u4ee5\u5c06\u4e00\u4e2a\u51fd\u6570\u5e94\u7528\u4e8e\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u8fed\u4ee3\u5668\u3002\u53ef\u4ee5\u4f7f\u7528<code>list()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u5e76\u663e\u793a\u7ed3\u679c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]<\/p>\n<p>squared_list = list(map(lambda x: x2, my_list))<\/p>\n<p>print(squared_list)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7<code>map()<\/code>\u51fd\u6570\uff0c<strong>\u53ef\u4ee5\u5728\u8f93\u51fa\u524d\u5bf9\u5217\u8868\u5143\u7d20\u8fdb\u884c\u6279\u91cf\u5904\u7406<\/strong>\uff0c\u8fd9\u5728\u9700\u8981\u5bf9\u6bcf\u4e2a\u5143\u7d20\u5e94\u7528\u7279\u5b9a\u51fd\u6570\u7684\u573a\u666f\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><p>\u516b\u3001\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u663e\u793a\u5217\u8868\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u7279\u5b9a\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002<strong>\u76f4\u63a5\u6253\u5370\u9002\u5408\u5feb\u901f\u67e5\u770b\uff0c\u5faa\u73af\u904d\u5386\u9002\u5408\u9010\u4e2a\u5904\u7406\uff0c\u5217\u8868\u89e3\u6790\u548c<code>map()<\/code>\u51fd\u6570\u9002\u5408\u6279\u91cf\u683c\u5f0f\u5316\u548c\u5904\u7406\uff0c<code>join()<\/code>\u65b9\u6cd5\u9002\u5408\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8f93\u51fa\uff0c<code>enumerate()<\/code>\u9002\u5408\u9700\u8981\u7d22\u5f15\u7684\u573a\u5408\uff0c\u800c<code>pprint<\/code>\u6a21\u5757\u9002\u5408\u590d\u6742\u6570\u636e\u7ed3\u6784\u7684\u7f8e\u5316\u8f93\u51fa<\/strong>\u3002\u6839\u636e\u4e0d\u540c\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u6253\u5370\u5217\u8868\u7684\u5185\u5bb9\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>print()<\/code>\u51fd\u6570\u76f4\u63a5\u6253\u5370\u5217\u8868\u7684\u5185\u5bb9\u3002\u53ea\u9700\u5c06\u5217\u8868\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9<code>print()<\/code>\u51fd\u6570\uff0c\u4f8b\u5982\uff1a<code>my_list = [1, 2, 3, 4]<\/code>\uff0c\u7136\u540e\u8fd0\u884c<code>print(my_list)<\/code>\uff0c\u5373\u53ef\u5728\u63a7\u5236\u53f0\u4e2d\u663e\u793a\u5217\u8868\u7684\u5b8c\u6574\u5185\u5bb9\u3002<\/p>\n<p><strong>\u662f\u5426\u53ef\u4ee5\u4ee5\u7279\u5b9a\u683c\u5f0f\u663e\u793a\u5217\u8868\uff1f<\/strong><br \/>\u662f\u7684\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6216\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u4ee5\u7279\u5b9a\u683c\u5f0f\u663e\u793a\u5217\u8868\u7684\u5185\u5bb9\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u8981\u4ee5\u9017\u53f7\u5206\u9694\u7684\u5f62\u5f0f\u6253\u5370\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528<code>join()<\/code>\u65b9\u6cd5\uff0c\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a<code>print(&quot;, &quot;.join(map(str, my_list)))<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8ba9\u8f93\u51fa\u66f4\u5177\u53ef\u8bfb\u6027\u3002<\/p>\n<p><strong>\u5982\u4f55\u663e\u793a\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u548c\u5bf9\u5e94\u503c\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528<code>enumerate()<\/code>\u51fd\u6570\u6765\u540c\u65f6\u83b7\u53d6\u5217\u8868\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u548c\u5bf9\u5e94\u503c\u3002\u6bd4\u5982\uff0c\u4f7f\u7528<code>for index, value in enumerate(my_list): print(f&quot;\u7d22\u5f15 {index}: \u503c {value}&quot;)<\/code>\uff0c\u8fd9\u6837\u53ef\u4ee5\u6e05\u695a\u5730\u770b\u5230\u6bcf\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u53ca\u5176\u5bf9\u5e94\u7684\u503c\uff0c\u975e\u5e38\u9002\u5408\u8c03\u8bd5\u548c\u6570\u636e\u5206\u6790\u65f6\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u663e\u793a\u5217\u8868\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u6253\u5370\u3001\u4f7f\u7528\u5faa\u73af\u904d\u5386\u3001\u5217\u8868\u89e3\u6790\u7b49\u65b9\u5f0f\u6765\u663e\u793a\u5217\u8868\u7684\u5185\u5bb9\u3002\u4e0b\u9762\u6211 [&hellip;]","protected":false},"author":3,"featured_media":970359,"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\/970355"}],"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=970355"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/970355\/revisions"}],"predecessor-version":[{"id":970360,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/970355\/revisions\/970360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/970359"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=970355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=970355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=970355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}