{"id":990515,"date":"2024-12-27T08:20:46","date_gmt":"2024-12-27T00:20:46","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/990515.html"},"modified":"2024-12-27T08:20:48","modified_gmt":"2024-12-27T00:20:48","slug":"python%e5%a6%82%e4%bd%95%e6%89%93%e5%8d%b0%e5%ba%8f%e5%88%97%e5%85%a8%e9%83%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/990515.html","title":{"rendered":"python\u5982\u4f55\u6253\u5370\u5e8f\u5217\u5168\u90e8"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25065214\/382bf7c5-c9f7-40fd-b0a3-e1124f0ff1ba.webp\" alt=\"python\u5982\u4f55\u6253\u5370\u5e8f\u5217\u5168\u90e8\" \/><\/p>\n<p><p> \u5728Python\u4e2d\uff0c<strong>\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u3001\u5217\u8868\u89e3\u6790\u3001\u6216\u8005\u5185\u7f6e\u7684print()\u51fd\u6570\u6765\u6253\u5370\u5e8f\u5217\u7684\u5168\u90e8\u5185\u5bb9<\/strong>\u3002\u5176\u4e2d\uff0cfor\u5faa\u73af\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u7b80\u5355\u5730\u904d\u5386\u5e8f\u5217\u5e76\u9010\u4e00\u6253\u5370\u6bcf\u4e2a\u5143\u7d20\u3002\u4f7f\u7528\u5217\u8868\u89e3\u6790\u4e5f\u80fd\u5b9e\u73b0\u76f8\u4f3c\u7684\u6548\u679c\uff0c\u4e14\u53ef\u4ee5\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u5b8c\u6210\u3002\u5185\u7f6e\u7684print()\u51fd\u6570\u5219\u9002\u5408\u6253\u5370\u5c0f\u578b\u5e8f\u5217\u7684\u5168\u90e8\u5185\u5bb9\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u8ba8\u8bba\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528FOR\u5faa\u73af\u6253\u5370\u5e8f\u5217<\/p>\n<\/p>\n<p><p>\u4f7f\u7528for\u5faa\u73af\u662f\u6253\u5370\u5e8f\u5217\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u6700\u76f4\u63a5\u65b9\u6cd5\u3002\u5b83\u9002\u7528\u4e8e\u4efb\u4f55\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u5305\u62ec\u5217\u8868\u3001\u5143\u7ec4\u3001\u5b57\u7b26\u4e32\u548c\u96c6\u5408\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">sequence = [1, 2, 3, 4, 5]<\/p>\n<p>for item in sequence:<\/p>\n<p>    print(item)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5217\u8868<code>sequence<\/code>\uff0c\u7136\u540e\u7528for\u5faa\u73af\u904d\u5386\u5b83\u3002\u6bcf\u6b21\u5faa\u73af\uff0c<code>item<\/code>\u53d8\u91cf\u4f1a\u88ab\u8d4b\u503c\u4e3a\u5e8f\u5217\u4e2d\u7684\u4e0b\u4e00\u4e2a\u5143\u7d20\uff0c\u5faa\u73af\u4f53\u4e2d\u7684<code>print(item)<\/code>\u8bed\u53e5\u5219\u8d1f\u8d23\u6253\u5370\u51fa\u5f53\u524d\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f7f\u7528for\u5faa\u73af\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u7b80\u6d01\u660e\u4e86\uff0c\u5e76\u4e14\u5bb9\u6613\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528\u5217\u8868\u89e3\u6790<\/p>\n<\/p>\n<p><p>\u5217\u8868\u89e3\u6790\u662f\u4e00\u79cd\u66f4\u4e3aPythonic\u7684\u65b9\u6cd5\uff0c\u7279\u522b\u9002\u5408\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u6267\u884c\u7b80\u5355\u7684\u64cd\u4f5c\u3002\u867d\u7136\u5217\u8868\u89e3\u6790\u901a\u5e38\u7528\u4e8e\u751f\u6210\u65b0\u7684\u5217\u8868\uff0c\u4f46\u5b83\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6253\u5370\u5e8f\u5217\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">sequence = [1, 2, 3, 4, 5]<\/p>\n<p>[print(item) for item in sequence]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u4e00\u4e2a\u5217\u8868\u89e3\u6790\u6765\u904d\u5386\u5e8f\u5217\u5e76\u6253\u5370\u6bcf\u4e2a\u5143\u7d20\u3002\u867d\u7136\u8fd9\u79cd\u65b9\u6cd5\u5728\u529f\u80fd\u4e0a\u4e0efor\u5faa\u73af\u76f8\u4f3c\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u663e\u5f97\u66f4\u52a0\u7b80\u6d01\u3002<\/p>\n<\/p>\n<p><p><strong>\u5217\u8868\u89e3\u6790\u7684\u4e3b\u8981\u4f18\u70b9\u5728\u4e8e\u5176\u7b80\u6d01\u6027\uff0c\u7279\u522b\u9002\u5408\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u5b8c\u6210\u7b80\u5355\u7684\u64cd\u4f5c\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528\u5185\u7f6e\u7684PRINT()\u51fd\u6570\u76f4\u63a5\u6253\u5370<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u5c0f\u578b\u5e8f\u5217\uff0c\u76f4\u63a5\u4f7f\u7528print()\u51fd\u6570\u53ef\u4ee5\u5feb\u901f\u65b9\u4fbf\u5730\u6253\u5370\u6574\u4e2a\u5e8f\u5217\u3002Python\u7684print()\u51fd\u6570\u80fd\u591f\u81ea\u52a8\u5c06\u5e8f\u5217\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5e76\u8f93\u51fa\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">sequence = [1, 2, 3, 4, 5]<\/p>\n<p>print(sequence)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u5bf9\u4e8e\u8c03\u8bd5\u6216\u5feb\u901f\u68c0\u67e5\u5e8f\u5217\u7684\u5185\u5bb9\u975e\u5e38\u6709\u7528\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u5927\u578b\u5e8f\u5217\u6216\u9700\u8981\u9010\u4e2a\u5143\u7d20\u8fdb\u884c\u5904\u7406\u7684\u60c5\u51b5\uff0cfor\u5faa\u73af\u6216\u5217\u8868\u89e3\u6790\u53ef\u80fd\u66f4\u4e3a\u5408\u9002\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f7f\u7528print()\u51fd\u6570\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u7b80\u5355\u6027\u548c\u5feb\u901f\u6027\uff0c\u4f46\u5728\u5904\u7406\u590d\u6742\u64cd\u4f5c\u65f6\u4e0d\u5982\u5faa\u73af\u7075\u6d3b\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u56db\u3001\u7ed3\u5408JOIN()\u65b9\u6cd5\u6253\u5370\u5b57\u7b26\u4e32\u5e8f\u5217<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u5b57\u7b26\u4e32\u5e8f\u5217\uff0c\u53ef\u4ee5\u7ed3\u5408join()\u65b9\u6cd5\u5c06\u5e8f\u5217\u4e2d\u7684\u5143\u7d20\u8fde\u63a5\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u6253\u5370\u51fa\u8fd9\u4e2a\u5b57\u7b26\u4e32\u3002\u8fd9\u79cd\u65b9\u6cd5\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u5728\u5143\u7d20\u4e4b\u95f4\u63d2\u5165\u7279\u5b9a\u5206\u9694\u7b26\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">sequence = [&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;, &#39;e&#39;]<\/p>\n<p>print(&#39; &#39;.join(sequence))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u7528\u7a7a\u683c\u5c06\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5143\u7d20\u8fde\u63a5\u8d77\u6765\uff0c\u5e76\u8f93\u51fa\u7ed3\u679c\u3002join()\u65b9\u6cd5\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u8fd8\u80fd\u66f4\u597d\u5730\u63a7\u5236\u8f93\u51fa\u683c\u5f0f\u3002<\/p>\n<\/p>\n<p><p><strong>join()\u65b9\u6cd5\u7684\u597d\u5904\u5728\u4e8e\u53ef\u4ee5\u7075\u6d3b\u5730\u63a7\u5236\u8f93\u51fa\u683c\u5f0f\uff0c\u7279\u522b\u9002\u5408\u5904\u7406\u5b57\u7b26\u4e32\u5e8f\u5217\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4f7f\u7528ENUMERATE()\u51fd\u6570\u83b7\u53d6\u7d22\u5f15\u548c\u5143\u7d20<\/p>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5728\u6253\u5370\u5143\u7d20\u7684\u540c\u65f6\u83b7\u53d6\u5b83\u4eec\u7684\u7d22\u5f15\u3002\u8fd9\u65f6\uff0cenumerate()\u51fd\u6570\u53ef\u4ee5\u6d3e\u4e0a\u7528\u573a\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">sequence = [10, 20, 30, 40, 50]<\/p>\n<p>for index, item in enumerate(sequence):<\/p>\n<p>    print(f&quot;Index: {index}, Item: {item}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f7f\u7528enumerate()\u51fd\u6570\uff0c\u6211\u4eec\u4e0d\u4ec5\u80fd\u83b7\u53d6\u5e8f\u5217\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u8fd8\u80fd\u5f97\u5230\u5b83\u4eec\u7684\u7d22\u5f15\u503c\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u8ddf\u8e2a\u5143\u7d20\u4f4d\u7f6e\u7684\u64cd\u4f5c\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<p><p><strong>enumerate()\u51fd\u6570\u7684\u4f18\u52bf\u5728\u4e8e\u80fd\u591f\u540c\u65f6\u83b7\u53d6\u5143\u7d20\u548c\u7d22\u5f15\uff0c\u9002\u7528\u4e8e\u9700\u8981\u4f4d\u7f6e\u76f8\u5173\u4fe1\u606f\u7684\u573a\u666f\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u516d\u3001\u4f7f\u7528MAP()\u51fd\u6570\u6253\u5370\u5e8f\u5217<\/p>\n<\/p>\n<p><p>map()\u51fd\u6570\u901a\u5e38\u7528\u4e8e\u5bf9\u5e8f\u5217\u7684\u6bcf\u4e2a\u5143\u7d20\u5e94\u7528\u7279\u5b9a\u7684\u51fd\u6570\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5b83\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6253\u5370\u5e8f\u5217\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">sequence = [1, 2, 3, 4, 5]<\/p>\n<p>list(map(print, sequence))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u7528map()\u51fd\u6570\u5c06print()\u51fd\u6570\u5e94\u7528\u4e8e\u5e8f\u5217\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u867d\u7136\u8fd9\u4e0d\u662fmap()\u7684\u5e38\u89c4\u7528\u9014\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u663e\u5f97\u7b80\u6d01\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f7f\u7528map()\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u51fd\u6570\u5f0f\u7f16\u7a0b\u98ce\u683c\uff0c\u9002\u5408\u9700\u8981\u5bf9\u5e8f\u5217\u5143\u7d20\u5e94\u7528\u7279\u5b9a\u64cd\u4f5c\u7684\u573a\u666f\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u603b\u7ed3\uff1a<\/p>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u6253\u5370\u5e8f\u5217\u4e2d\u7684\u5168\u90e8\u5143\u7d20\uff0c\u5305\u62ecfor\u5faa\u73af\u3001\u5217\u8868\u89e3\u6790\u3001print()\u51fd\u6570\u3001join()\u65b9\u6cd5\u3001enumerate()\u51fd\u6570\u548cmap()\u51fd\u6570\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u70b9\u548c\u9002\u7528\u573a\u666f\uff0c\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\u548c\u4e2a\u4eba\u7684\u7f16\u7801\u98ce\u683c\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u9700\u8981\u7075\u6d3b\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u4ee5\u5b9e\u73b0\u6700\u4f73\u7684\u4ee3\u7801\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\u4e00\u4e2a\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u5982\u679c\u60a8\u60f3\u6253\u5370\u4e00\u4e2a\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u6765\u904d\u5386\u5217\u8868\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a  <\/p>\n<pre><code class=\"language-python\">my_list = [1, 2, 3, 4, 5]\nfor item in my_list:\n    print(item)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u4f1a\u9010\u4e2a\u6253\u5370\u5217\u8868\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n<p><strong>\u662f\u5426\u53ef\u4ee5\u4f7f\u7528<code>join<\/code>\u51fd\u6570\u6253\u5370\u5b57\u7b26\u4e32\u5e8f\u5217\uff1f<\/strong><br \/>\u662f\u7684\uff0c<code>join<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u8fde\u63a5\u5b57\u7b26\u4e32\u5e8f\u5217\u5e76\u6253\u5370\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u6709\u4e00\u4e2a\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528\uff1a  <\/p>\n<pre><code class=\"language-python\">string_list = [&#39;Hello&#39;, &#39;World&#39;]\nprint(&#39; &#39;.join(string_list))\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u8f93\u51fa<code>Hello World<\/code>\uff0c\u5176\u4e2d\u7a7a\u683c\u4f5c\u4e3a\u8fde\u63a5\u7b26\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u6253\u5370\u5b57\u5178\u7684\u6240\u6709\u952e\u548c\u503c\uff1f<\/strong><br \/>\u5982\u679c\u60a8\u60f3\u6253\u5370\u4e00\u4e2a\u5b57\u5178\u4e2d\u7684\u6240\u6709\u952e\u548c\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528<code>items()<\/code>\u65b9\u6cd5\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">my_dict = {&#39;a&#39;: 1, &#39;b&#39;: 2, &#39;c&#39;: 3}\nfor key, value in my_dict.items():\n    print(f&#39;\u952e: {key}, \u503c: {value}&#39;)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u4f1a\u5c06\u5b57\u5178\u4e2d\u7684\u6bcf\u4e00\u4e2a\u952e\u548c\u503c\u90fd\u6253\u5370\u51fa\u6765\uff0c\u683c\u5f0f\u6e05\u6670\u660e\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u3001\u5217\u8868\u89e3\u6790\u3001\u6216\u8005\u5185\u7f6e\u7684print()\u51fd\u6570\u6765\u6253\u5370\u5e8f\u5217\u7684\u5168\u90e8\u5185\u5bb9\u3002\u5176\u4e2d\uff0cfor [&hellip;]","protected":false},"author":3,"featured_media":990520,"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\/990515"}],"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=990515"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/990515\/revisions"}],"predecessor-version":[{"id":990522,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/990515\/revisions\/990522"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/990520"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=990515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=990515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=990515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}