{"id":980588,"date":"2024-12-27T06:55:41","date_gmt":"2024-12-26T22:55:41","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/980588.html"},"modified":"2024-12-27T06:55:45","modified_gmt":"2024-12-26T22:55:45","slug":"python%e5%a6%82%e4%bd%95%e6%a3%80%e6%9f%a5%e6%98%af%e5%90%a6%e8%be%93%e5%85%a5","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/980588.html","title":{"rendered":"python\u5982\u4f55\u68c0\u67e5\u662f\u5426\u8f93\u5165"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24205911\/04c02687-adcb-4173-8821-ecdccc042dd1.webp\" alt=\"python\u5982\u4f55\u68c0\u67e5\u662f\u5426\u8f93\u5165\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\u3001\u4f7f\u7528try-except\u7ed3\u6784\u6355\u83b7\u5f02\u5e38\u3001\u501f\u52a9\u5185\u7f6e\u51fd\u6570input\u6765\u5224\u65ad\u8f93\u5165\u5185\u5bb9\u662f\u5426\u4e3a\u7a7a\u6216\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u3002\u5176\u4e2d\uff0c\u5229\u7528input\u51fd\u6570\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u3002<\/strong>\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7input()\u51fd\u6570\u83b7\u53d6\u7528\u6237\u8f93\u5165\uff0c\u5e76\u68c0\u67e5\u8f93\u5165\u5185\u5bb9\u662f\u5426\u4e3a\u7a7a\u5b57\u7b26\u4e32\u6765\u5224\u65ad\u662f\u5426\u8f93\u5165\u3002<\/p>\n<\/p>\n<p><p>\u4e3a\u4e86\u8be6\u7ec6\u63cf\u8ff0\u5176\u4e2d\u4e00\u70b9\uff0c\u8ba9\u6211\u4eec\u63a2\u8ba8\u4e00\u4e0b\u5982\u4f55\u4f7f\u7528input\u51fd\u6570\u6765\u68c0\u67e5\u7528\u6237\u8f93\u5165\u3002\u5728Python\u4e2d\uff0cinput()\u51fd\u6570\u7528\u4e8e\u4ece\u7528\u6237\u83b7\u53d6\u8f93\u5165\uff0c\u5e76\u5c06\u5176\u4f5c\u4e3a\u5b57\u7b26\u4e32\u8fd4\u56de\u3002\u4e3a\u4e86\u5224\u65ad\u7528\u6237\u662f\u5426\u8f93\u5165\u4e86\u5185\u5bb9\uff0c\u53ef\u4ee5\u68c0\u67e5\u8fd4\u56de\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u7a7a\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>if not user_input:<\/code>\u6765\u5224\u65ad\u7528\u6237\u662f\u5426\u8f93\u5165\u4e86\u7a7a\u5b57\u7b26\u4e32\u3002\u8fd9\u662f\u4e00\u79cd\u7b80\u5355\u800c\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u7528\u6237\u8f93\u5165\u7684\u5730\u65b9\u8fdb\u884c\u9a8c\u8bc1\uff0c\u4ee5\u786e\u4fdd\u7a0b\u5e8f\u80fd\u591f\u6b63\u786e\u5904\u7406\u7528\u6237\u8f93\u5165\u3002<\/p>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdPython\u4e2d\u68c0\u67e5\u7528\u6237\u8f93\u5165\u7684\u5404\u79cd\u65b9\u6cd5\u548c\u6280\u5de7\u3002<\/p>\n<\/p>\n<h2><strong>\u4e00\u3001\u5229\u7528 input() \u51fd\u6570\u68c0\u67e5\u8f93\u5165<\/strong><\/h2>\n<p><p>\u4f7f\u7528input()\u51fd\u6570\u662f\u6700\u5e38\u89c1\u7684\u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u65b9\u6cd5\u3002\u5b83\u53ef\u4ee5\u4ece\u7528\u6237\u90a3\u91cc\u83b7\u53d6\u4e00\u884c\u8f93\u5165\uff0c\u5e76\u4ee5\u5b57\u7b26\u4e32\u5f62\u5f0f\u8fd4\u56de\u3002<\/p>\n<\/p>\n<p><h2>1. \u68c0\u67e5\u7a7a\u8f93\u5165<\/h2>\n<\/p>\n<p><p>\u5f53\u7528\u6237\u8f93\u5165\u4e3a\u7a7a\u65f6\uff0cinput()\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u3002\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5\u8fd4\u56de\u503c\u662f\u5426\u4e3a\u7a7a\u5b57\u7b26\u4e32\u6765\u786e\u5b9a\u7528\u6237\u662f\u5426\u8f93\u5165\u4e86\u5185\u5bb9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e9b\u5185\u5bb9\uff1a&quot;)<\/p>\n<p>if not user_input:<\/p>\n<p>    print(&quot;\u60a8\u6ca1\u6709\u8f93\u5165\u4efb\u4f55\u5185\u5bb9\u3002&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u60a8\u8f93\u5165\u4e86\uff1a&quot;, user_input)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7<code>if not user_input:<\/code>\u6765\u68c0\u67e5\u7528\u6237\u8f93\u5165\u662f\u5426\u4e3a\u7a7a\u3002\u5982\u679c\u4e3a\u7a7a\uff0c\u5219\u8f93\u51fa\u63d0\u793a\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><h2>2. \u5224\u65ad\u8f93\u5165\u662f\u5426\u7b26\u5408\u7279\u5b9a\u6761\u4ef6<\/h2>\n<\/p>\n<p><p>\u6709\u65f6\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u68c0\u67e5\u7528\u6237\u8f93\u5165\u662f\u5426\u7b26\u5408\u67d0\u4e9b\u7279\u5b9a\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u8f93\u5165\u7684\u5185\u5bb9\u5fc5\u987b\u662f\u6570\u5b57\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff1a&quot;)<\/p>\n<p>if user_input.isdigit():<\/p>\n<p>    print(&quot;\u60a8\u8f93\u5165\u7684\u6570\u5b57\u662f\uff1a&quot;, user_input)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5<code>isdigit()<\/code>\u6765\u68c0\u67e5\u8f93\u5165\u662f\u5426\u4ec5\u7531\u6570\u5b57\u7ec4\u6210\u3002\u5982\u679c\u662f\uff0c\u5219\u8f93\u51fa\u8f93\u5165\u7684\u6570\u5b57\uff1b\u5426\u5219\uff0c\u63d0\u793a\u8f93\u5165\u65e0\u6548\u3002<\/p>\n<\/p>\n<h2><strong>\u4e8c\u3001\u4f7f\u7528 try-except \u7ed3\u6784\u6355\u83b7\u5f02\u5e38<\/strong><\/h2>\n<p><p>\u5728\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u7528\u6237\u8f93\u5165\u4e0d\u7b26\u5408\u9884\u671f\u7684\u60c5\u51b5\uff0c\u4f8b\u5982\u5e0c\u671b\u8f93\u5165\u4e00\u4e2a\u6574\u6570\u4f46\u7528\u6237\u8f93\u5165\u4e86\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528try-except\u7ed3\u6784\u6765\u6355\u83b7\u5f02\u5e38\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n<p><h2>1. \u6355\u83b7 ValueError \u5f02\u5e38<\/h2>\n<\/p>\n<p><p>\u5f53\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u65e0\u6cd5\u8f6c\u6362\u4e3a\u6574\u6570\u6216\u5176\u4ed6\u7c7b\u578b\u65f6\uff0cPython\u4f1a\u629b\u51faValueError\u5f02\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528try-except\u7ed3\u6784\u6765\u6355\u83b7\u8be5\u5f02\u5e38\u5e76\u8fdb\u884c\u76f8\u5e94\u5904\u7406\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    user_input = int(input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6574\u6570\uff1a&quot;))<\/p>\n<p>    print(&quot;\u60a8\u8f93\u5165\u7684\u6574\u6570\u662f\uff1a&quot;, user_input)<\/p>\n<p>except ValueError:<\/p>\n<p>    print(&quot;\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u4e00\u4e2a\u6574\u6570\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5c1d\u8bd5\u5c06\u7528\u6237\u8f93\u5165\u8f6c\u6362\u4e3a\u6574\u6570\uff0c\u5982\u679c\u8f6c\u6362\u5931\u8d25\uff0c\u7a0b\u5e8f\u5c06\u6355\u83b7ValueError\u5f02\u5e38\u5e76\u63d0\u793a\u8f93\u5165\u65e0\u6548\u3002<\/p>\n<\/p>\n<p><h2>2. \u6355\u83b7\u591a\u79cd\u5f02\u5e38<\/h2>\n<\/p>\n<p><p>\u5982\u679c\u9700\u8981\u5904\u7406\u591a\u79cd\u7c7b\u578b\u7684\u5f02\u5e38\uff0c\u53ef\u4ee5\u5728except\u5757\u4e2d\u5217\u51fa\u591a\u4e2a\u5f02\u5e38\u7c7b\u578b\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6587\u4ef6\u540d\uff1a&quot;)<\/p>\n<p>    with open(user_input, &#39;r&#39;) as file:<\/p>\n<p>        content = file.read()<\/p>\n<p>        print(&quot;\u6587\u4ef6\u5185\u5bb9\uff1a&quot;, content)<\/p>\n<p>except FileNotFoundError:<\/p>\n<p>    print(&quot;\u627e\u4e0d\u5230\u6307\u5b9a\u7684\u6587\u4ef6\u3002&quot;)<\/p>\n<p>except IOError:<\/p>\n<p>    print(&quot;\u8bfb\u53d6\u6587\u4ef6\u65f6\u53d1\u751f\u9519\u8bef\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7a0b\u5e8f\u5c1d\u8bd5\u6253\u5f00\u5e76\u8bfb\u53d6\u7528\u6237\u6307\u5b9a\u7684\u6587\u4ef6\u3002\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\u6216\u8bfb\u53d6\u5931\u8d25\uff0c\u5c06\u5206\u522b\u6355\u83b7FileNotFoundError\u6216IOError\u5f02\u5e38\u5e76\u8f93\u51fa\u76f8\u5e94\u4fe1\u606f\u3002<\/p>\n<\/p>\n<h2><strong>\u4e09\u3001\u4f7f\u7528 assert \u8bed\u53e5\u8fdb\u884c\u8f93\u5165\u9a8c\u8bc1<\/strong><\/h2>\n<p><p>Python\u4e2d\u7684assert\u8bed\u53e5\u53ef\u4ee5\u7528\u4e8e\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u662f\u5426\u7b26\u5408\u67d0\u4e9b\u6761\u4ef6\u3002assert\u8bed\u53e5\u7528\u4e8e\u5728\u7a0b\u5e8f\u4e2d\u8fdb\u884c\u5185\u90e8\u4e00\u81f4\u6027\u68c0\u67e5\uff0c\u5f53\u6761\u4ef6\u4e0d\u6ee1\u8db3\u65f6\u629b\u51faAssertionError\u5f02\u5e38\u3002<\/p>\n<\/p>\n<p><h2>1. \u57fa\u672c\u7528\u6cd5<\/h2>\n<\/p>\n<p><p>\u53ef\u4ee5\u4f7f\u7528assert\u8bed\u53e5\u6765\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u662f\u5426\u7b26\u5408\u671f\u671b\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6b63\u6570\uff1a&quot;)<\/p>\n<p>assert user_input.isdigit() and int(user_input) &gt; 0, &quot;\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u4e00\u4e2a\u6b63\u6570\u3002&quot;<\/p>\n<p>print(&quot;\u60a8\u8f93\u5165\u7684\u6b63\u6570\u662f\uff1a&quot;, user_input)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528assert\u8bed\u53e5\u6765\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u662f\u5426\u4e3a\u6b63\u6570\u3002\u5982\u679c\u6761\u4ef6\u4e0d\u6ee1\u8db3\uff0c\u5c06\u629b\u51faAssertionError\u5f02\u5e38\u5e76\u8f93\u51fa\u6307\u5b9a\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><h2>2. \u7ed3\u5408try-except\u4f7f\u7528<\/h2>\n<\/p>\n<p><p>\u53ef\u4ee5\u5c06assert\u8bed\u53e5\u4e0etry-except\u7ed3\u6784\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u5728\u6355\u83b7\u5f02\u5e38\u65f6\u63d0\u4f9b\u66f4\u597d\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6b63\u6570\uff1a&quot;)<\/p>\n<p>    assert user_input.isdigit() and int(user_input) &gt; 0, &quot;\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u4e00\u4e2a\u6b63\u6570\u3002&quot;<\/p>\n<p>    print(&quot;\u60a8\u8f93\u5165\u7684\u6b63\u6570\u662f\uff1a&quot;, user_input)<\/p>\n<p>except AssertionError as error:<\/p>\n<p>    print(error)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7a0b\u5e8f\u5728\u6355\u83b7AssertionError\u5f02\u5e38\u65f6\u8f93\u51fa\u76f8\u5e94\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<\/p>\n<h2><strong>\u56db\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1\u8f93\u5165<\/strong><\/h2>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4e8e\u68c0\u67e5\u8f93\u5165\u662f\u5426\u7b26\u5408\u590d\u6742\u7684\u6a21\u5f0f\u3002<\/p>\n<\/p>\n<p><h2>1. \u57fa\u672c\u7528\u6cd5<\/h2>\n<\/p>\n<p><p>\u53ef\u4ee5\u4f7f\u7528Python\u7684re\u6a21\u5757\u6765\u5b9a\u4e49\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u5e76\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u5339\u914d\u6307\u5b9a\u6a21\u5f0f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6709\u6548\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff1a&quot;)<\/p>\n<p>pattern = r&#39;^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$&#39;<\/p>\n<p>if re.match(pattern, user_input):<\/p>\n<p>    print(&quot;\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u6709\u6548\u3002&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u65e0\u6548\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u683c\u5f0f\u662f\u5426\u6709\u6548\u3002<\/p>\n<\/p>\n<p><h2>2. \u9a8c\u8bc1\u590d\u6742\u8f93\u5165<\/h2>\n<\/p>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u8f93\u5165\u9a8c\u8bc1\uff0c\u4f8b\u5982\u7535\u8bdd\u53f7\u7801\u3001\u90ae\u653f\u7f16\u7801\u7b49\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">phone_number = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6709\u6548\u7684\u7535\u8bdd\u53f7\u7801\uff08\u683c\u5f0f\uff1a123-456-7890\uff09\uff1a&quot;)<\/p>\n<p>pattern = r&#39;^\\d{3}-\\d{3}-\\d{4}$&#39;<\/p>\n<p>if re.match(pattern, phone_number):<\/p>\n<p>    print(&quot;\u7535\u8bdd\u53f7\u7801\u6709\u6548\u3002&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u7535\u8bdd\u53f7\u7801\u65e0\u6548\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u7528\u4e8e\u9a8c\u8bc1\u7535\u8bdd\u53f7\u7801\u683c\u5f0f\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002<\/p>\n<\/p>\n<h2><strong>\u4e94\u3001\u4f7f\u7528\u81ea\u5b9a\u4e49\u51fd\u6570\u8fdb\u884c\u8f93\u5165\u68c0\u67e5<\/strong><\/h2>\n<p><p>\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5b9a\u4e49\u51fd\u6570\u4ee5\u4fbf\u5728\u7a0b\u5e8f\u4e2d\u591a\u6b21\u4f7f\u7528\u7279\u5b9a\u7684\u8f93\u5165\u68c0\u67e5\u903b\u8f91\u3002<\/p>\n<\/p>\n<p><h2>1. \u5b9a\u4e49\u68c0\u67e5\u51fd\u6570<\/h2>\n<\/p>\n<p><p>\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u662f\u5426\u4e3a\u6b63\u6574\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def is_positive_integer(value):<\/p>\n<p>    return value.isdigit() and int(value) &gt; 0<\/p>\n<p>user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6b63\u6574\u6570\uff1a&quot;)<\/p>\n<p>if is_positive_integer(user_input):<\/p>\n<p>    print(&quot;\u60a8\u8f93\u5165\u7684\u6b63\u6574\u6570\u662f\uff1a&quot;, user_input)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u8f93\u5165\u65e0\u6548\uff0c\u8bf7\u8f93\u5165\u4e00\u4e2a\u6b63\u6574\u6570\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3ais_positive_integer\u7684\u51fd\u6570\uff0c\u7528\u4e8e\u68c0\u67e5\u8f93\u5165\u662f\u5426\u4e3a\u6b63\u6574\u6570\u3002<\/p>\n<\/p>\n<p><h2>2. \u590d\u7528\u51fd\u6570<\/h2>\n<\/p>\n<p><p>\u5728\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u591a\u6b21\u8c03\u7528\u81ea\u5b9a\u4e49\u7684\u8f93\u5165\u68c0\u67e5\u51fd\u6570\uff0c\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u91cd\u7528\u6027\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def is_valid_em<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>l(email):<\/p>\n<p>    import re<\/p>\n<p>    pattern = r&#39;^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$&#39;<\/p>\n<p>    return re.match(pattern, email)<\/p>\n<p>email = input(&quot;\u8bf7\u8f93\u5165\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff1a&quot;)<\/p>\n<p>if is_valid_email(email):<\/p>\n<p>    print(&quot;\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u6709\u6548\u3002&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u65e0\u6548\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3ais_valid_email\u7684\u51fd\u6570\uff0c\u7528\u4e8e\u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u7684\u683c\u5f0f\uff0c\u5e76\u5728\u7a0b\u5e8f\u4e2d\u591a\u6b21\u4f7f\u7528\u3002<\/p>\n<\/p>\n<h2><strong>\u516d\u3001\u603b\u7ed3<\/strong><\/h2>\n<p><p>\u5728Python\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u68c0\u67e5\u7528\u6237\u8f93\u5165\u662f\u5426\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u6216\u662f\u5426\u4e3a\u7a7a\u3002\u4f7f\u7528input()\u51fd\u6570\u662f\u6700\u57fa\u672c\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5\u8fd4\u56de\u503c\u662f\u5426\u4e3a\u7a7a\u5b57\u7b26\u4e32\u6765\u5224\u65ad\u7528\u6237\u662f\u5426\u8f93\u5165\u4e86\u5185\u5bb9\u3002try-except\u7ed3\u6784\u5141\u8bb8\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002assert\u8bed\u53e5\u53ef\u4ee5\u7528\u4e8e\u5185\u90e8\u4e00\u81f4\u6027\u68c0\u67e5\uff0c\u800c\u6b63\u5219\u8868\u8fbe\u5f0f\u5219\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6a21\u5f0f\u5339\u914d\u529f\u80fd\u3002\u6b64\u5916\uff0c\u81ea\u5b9a\u4e49\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u7ec4\u7ec7\u548c\u590d\u7528\u8f93\u5165\u68c0\u67e5\u903b\u8f91\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u5904\u7406\u7528\u6237\u8f93\u5165\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u68c0\u67e5\u7528\u6237\u8f93\u5165\u7684\u6709\u6548\u6027\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>input()<\/code>\u51fd\u6570\u63a5\u6536\u7528\u6237\u8f93\u5165\uff0c\u5e76\u7ed3\u5408\u6761\u4ef6\u8bed\u53e5\u68c0\u67e5\u5176\u6709\u6548\u6027\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u4e3a\u7a7a\u3001\u662f\u5426\u4e3a\u6570\u5b57\u3001\u6216\u662f\u5426\u7b26\u5408\u7279\u5b9a\u683c\u5f0f\u3002\u4f7f\u7528<code>if<\/code>\u8bed\u53e5\u53ef\u4ee5\u6709\u6548\u5730\u5bf9\u8f93\u5165\u8fdb\u884c\u5224\u65ad\uff0c\u5fc5\u8981\u65f6\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u6765\u53cd\u590d\u8bf7\u6c42\u7528\u6237\u8f93\u5165\uff0c\u76f4\u5230\u6ee1\u8db3\u6761\u4ef6\u4e3a\u6b62\u3002<\/p>\n<p><strong>\u5982\u679c\u7528\u6237\u8f93\u5165\u4e86\u65e0\u6548\u6570\u636e\uff0c\u5982\u4f55\u63d0\u793a\u4ed6\u4eec\u91cd\u8bd5\uff1f<\/strong><br \/>\u53ef\u4ee5\u901a\u8fc7<code>try...except<\/code>\u8bed\u53e5\u5904\u7406\u8f93\u5165\u9519\u8bef\uff0c\u5e76\u7ed3\u5408<code>while<\/code>\u5faa\u73af\u6765\u53cd\u590d\u63d0\u793a\u7528\u6237\u8f93\u5165\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u6c42\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff0c\u53ef\u4ee5\u5728<code>except<\/code>\u5757\u4e2d\u6355\u83b7<code>ValueError<\/code>\uff0c\u5e76\u5411\u7528\u6237\u8bf4\u660e\u9519\u8bef\u7c7b\u578b\uff0c\u63d0\u9192\u4ed6\u4eec\u91cd\u65b0\u8f93\u5165\u6709\u6548\u6570\u636e\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u786e\u4fdd\u8f93\u5165\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\uff1f<\/strong><br \/>\u8981\u786e\u4fdd\u8f93\u5165\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u68c0\u67e5\u8f93\u5165\u7684\u5408\u6cd5\u6027\u3002\u4f8b\u5982\uff0c\u82e5\u9700\u8981\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u5728\u7279\u5b9a\u8303\u56f4\u5185\u7684\u6574\u6570\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\uff0c\u4f7f\u7528<code>if<\/code>\u8bed\u53e5\u68c0\u67e5\u8f93\u5165\u503c\u662f\u5426\u5728\u6240\u9700\u8303\u56f4\u5185\u3002\u5982\u679c\u4e0d\u7b26\u5408\u6761\u4ef6\uff0c\u51fd\u6570\u53ef\u4ee5\u8fd4\u56de<code>False<\/code>\uff0c\u5e76\u63d0\u793a\u7528\u6237\u8f93\u5165\u6b63\u786e\u7684\u503c\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u7528\u6237\u8f93\u5165\u5e76\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5\u53d8\u91cf\u662f\u5426\u4e3a\u7a7a\u3001\u4f7f\u7528try-except\u7ed3\u6784\u6355\u83b7\u5f02\u5e38\u3001\u501f\u52a9\u5185\u7f6e\u51fd\u6570input\u6765\u5224\u65ad [&hellip;]","protected":false},"author":3,"featured_media":980602,"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\/980588"}],"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=980588"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/980588\/revisions"}],"predecessor-version":[{"id":980605,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/980588\/revisions\/980605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/980602"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=980588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=980588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=980588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}