{"id":965167,"date":"2024-12-27T04:35:24","date_gmt":"2024-12-26T20:35:24","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/965167.html"},"modified":"2024-12-27T04:35:27","modified_gmt":"2024-12-26T20:35:27","slug":"python%e5%a6%82%e4%bd%95%e8%bf%9e%e7%bb%ad%e8%be%93%e5%85%a5%e6%95%b0%e5%ad%97","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/965167.html","title":{"rendered":"python\u5982\u4f55\u8fde\u7eed\u8f93\u5165\u6570\u5b57"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24181617\/21e13460-a94a-4ddd-a070-d14c6d306b27.webp\" alt=\"python\u5982\u4f55\u8fde\u7eed\u8f93\u5165\u6570\u5b57\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u8fde\u7eed\u8f93\u5165\u6570\u5b57\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\u3001\u5c06\u8f93\u5165\u7684\u6570\u5b57\u5b58\u50a8\u5728\u5217\u8868\u6216\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u4e2d\u3001\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u6765\u786e\u4fdd\u8f93\u5165\u7684\u6709\u6548\u6027\u3002\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u6216<code>while<\/code>\u5faa\u73af\u6765\u591a\u6b21\u8bfb\u53d6\u8f93\u5165\uff0c\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u5b57\u5e76\u5b58\u50a8\u5230\u5217\u8868\u4e2d\u3002<\/strong> \u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>while<\/code>\u5faa\u73af\u6765\u6301\u7eed\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u7684\u6570\u5b57\uff0c\u5e76\u5728\u7528\u6237\u8f93\u5165\u7279\u5b9a\u5b57\u7b26\uff08\u5982&quot;done&quot;\uff09\u65f6\u505c\u6b62\u5faa\u73af\u3002\u4e0b\u9762\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u8ba8\u8bba\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528<code>while<\/code>\u5faa\u73af\u6301\u7eed\u8f93\u5165\u6570\u5b57<\/p>\n<\/p>\n<p><p>\u4f7f\u7528<code>while<\/code>\u5faa\u73af\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8ba9\u7528\u6237\u5728\u4e0d\u77e5\u9053\u8f93\u5165\u6b21\u6570\u7684\u60c5\u51b5\u4e0b\u8f93\u5165\u6570\u5b57\uff0c\u76f4\u5230\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u4e3a\u6b62\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">numbers = []<\/p>\n<p>while True:<\/p>\n<p>    user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff08\u8f93\u5165&#39;done&#39;\u7ed3\u675f\uff09\uff1a&quot;)<\/p>\n<p>    if user_input.lower() == &#39;done&#39;:<\/p>\n<p>        break<\/p>\n<p>    try:<\/p>\n<p>        number = float(user_input)<\/p>\n<p>        numbers.append(number)<\/p>\n<p>    except ValueError:<\/p>\n<p>        print(&quot;\u8bf7\u8f93\u5165\u6709\u6548\u7684\u6570\u5b57\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u7a0b\u5e8f\u4f1a\u4e0d\u65ad\u8be2\u95ee\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff0c\u5e76\u5c06\u6709\u6548\u7684\u6570\u5b57\u5b58\u50a8\u5230<code>numbers<\/code>\u5217\u8868\u4e2d\u3002\u5f53\u7528\u6237\u8f93\u5165&#39;done&#39;\u65f6\uff0c\u5faa\u73af\u7ed3\u675f\u3002<strong>\u5f02\u5e38\u5904\u7406\u4f7f\u7528<code>try...except<\/code>\u7ed3\u6784\u6765\u6355\u83b7\u65e0\u6548\u8f93\u5165\u5e76\u63d0\u793a\u7528\u6237\u91cd\u65b0\u8f93\u5165\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u8f93\u5165\u56fa\u5b9a\u6570\u91cf\u7684\u6570\u5b57<\/p>\n<\/p>\n<p><p>\u5982\u679c\u5df2\u77e5\u9700\u8981\u8f93\u5165\u7684\u6570\u5b57\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u6765\u63a7\u5236\u8f93\u5165\u6b21\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">numbers_count = 5<\/p>\n<p>numbers = []<\/p>\n<p>for i in range(numbers_count):<\/p>\n<p>    while True:<\/p>\n<p>        user_input = input(f&quot;\u8bf7\u8f93\u5165\u7b2c{i+1}\u4e2a\u6570\u5b57\uff1a&quot;)<\/p>\n<p>        try:<\/p>\n<p>            number = float(user_input)<\/p>\n<p>            numbers.append(number)<\/p>\n<p>            break<\/p>\n<p>        except ValueError:<\/p>\n<p>            print(&quot;\u8bf7\u8f93\u5165\u6709\u6548\u7684\u6570\u5b57\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c<code>for<\/code>\u5faa\u73af\u63a7\u5236\u8f93\u5165\u7684\u6b21\u6570\u4e3a5\u6b21\uff0c\u6bcf\u6b21\u8f93\u5165\u6709\u6548\u7684\u6570\u5b57\u540e\u5b58\u50a8\u5230<code>numbers<\/code>\u5217\u8868\u4e2d\u3002<strong>\u5982\u679c\u8f93\u5165\u65e0\u6548\uff0c\u7a0b\u5e8f\u4f1a\u63d0\u793a\u91cd\u65b0\u8f93\u5165\u76f4\u5230\u83b7\u5f97\u6709\u6548\u7684\u6570\u5b57\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u7b80\u5316\u8f93\u5165\u8fc7\u7a0b<\/p>\n<\/p>\n<p><p>\u5bf9\u4e8e\u4e00\u4e9b\u7b80\u5355\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u7b80\u5316\u4ee3\u7801\u3002\u4e0d\u8fc7\uff0c\u8fd9\u79cd\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u5df2\u77e5\u8f93\u5165\u6b21\u6570\u7684\u60c5\u5883\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">numbers_count = 5<\/p>\n<p>numbers = [float(input(f&quot;\u8bf7\u8f93\u5165\u7b2c{i+1}\u4e2a\u6570\u5b57\uff1a&quot;)) for i in range(numbers_count)]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5316\u4e86\u4ee3\u7801\uff0c\u4f46\u4e0d\u5305\u62ec\u8f93\u5165\u9a8c\u8bc1\u3002\u56e0\u6b64\uff0c<strong>\u5728\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u7528\u6237\u8f93\u5165\u7684\u90fd\u662f\u6709\u6548\u7684\u6570\u5b57\uff0c\u5426\u5219\u4f1a\u5f15\u53d1\u9519\u8bef\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u56db\u3001\u901a\u8fc7\u51fd\u6570\u5c01\u88c5\u8f93\u5165\u903b\u8f91<\/p>\n<\/p>\n<p><p>\u5c06\u8f93\u5165\u903b\u8f91\u5c01\u88c5\u5230\u51fd\u6570\u4e2d\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def get_numbers():<\/p>\n<p>    numbers = []<\/p>\n<p>    while True:<\/p>\n<p>        user_input = input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff08\u8f93\u5165&#39;done&#39;\u7ed3\u675f\uff09\uff1a&quot;)<\/p>\n<p>        if user_input.lower() == &#39;done&#39;:<\/p>\n<p>            break<\/p>\n<p>        try:<\/p>\n<p>            number = float(user_input)<\/p>\n<p>            numbers.append(number)<\/p>\n<p>        except ValueError:<\/p>\n<p>            print(&quot;\u8bf7\u8f93\u5165\u6709\u6548\u7684\u6570\u5b57\u3002&quot;)<\/p>\n<p>    return numbers<\/p>\n<p>numbers = get_numbers()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f7f\u7528\u51fd\u6570\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u6574\u6d01\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7a0b\u5e8f\u4e2d\u91cd\u590d\u4f7f\u7528\u3002<strong>\u5728\u51fd\u6570\u4e2d\u5b9e\u73b0\u7684\u5f02\u5e38\u5904\u7406\u903b\u8f91\u53ef\u4ee5\u786e\u4fdd\u7528\u6237\u8f93\u5165\u7684\u90fd\u662f\u6709\u6548\u7684\u6570\u5b57\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e94\u3001\u5904\u7406\u5927\u6279\u91cf\u8f93\u5165\u7684\u4f18\u5316\u65b9\u6848<\/p>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u91cf\u6570\u5b57\u8f93\u5165\u65f6\uff0c\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u662f\u9700\u8981\u8003\u8651\u7684\u91cd\u8981\u65b9\u9762\u3002\u53ef\u4ee5\u901a\u8fc7\u6279\u91cf\u8f93\u5165\u6216\u6587\u4ef6\u8f93\u5165\u6765\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u6279\u91cf\u8f93\u5165<\/strong>\uff1a\u8ba9\u7528\u6237\u5728\u4e00\u884c\u4e2d\u8f93\u5165\u591a\u4e2a\u6570\u5b57\uff0c\u7136\u540e\u5bf9\u8f93\u5165\u8fdb\u884c\u62c6\u5206\u548c\u9a8c\u8bc1\u3002<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\">user_input = input(&quot;\u8bf7\u8f93\u5165\u591a\u4e2a\u6570\u5b57\uff08\u7528\u7a7a\u683c\u5206\u9694\uff09\uff1a&quot;)<\/p>\n<p>numbers = []<\/p>\n<p>for value in user_input.split():<\/p>\n<p>    try:<\/p>\n<p>        number = float(value)<\/p>\n<p>        numbers.append(number)<\/p>\n<p>    except ValueError:<\/p>\n<p>        print(f&quot;&#39;{value}&#39;\u4e0d\u662f\u6709\u6548\u7684\u6570\u5b57\uff0c\u5df2\u8df3\u8fc7\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u6587\u4ef6\u8f93\u5165<\/strong>\uff1a\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u5b57\u8f93\u5165\uff0c\u9002\u5408\u5904\u7406\u975e\u5e38\u5927\u7684\u6570\u636e\u96c6\u3002<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\">filename = &#39;numbers.txt&#39;<\/p>\n<p>with open(filename, &#39;r&#39;) as file:<\/p>\n<p>    numbers = []<\/p>\n<p>    for line in file:<\/p>\n<p>        try:<\/p>\n<p>            number = float(line.strip())<\/p>\n<p>            numbers.append(number)<\/p>\n<p>        except ValueError:<\/p>\n<p>            print(f&quot;&#39;{line.strip()}&#39;\u4e0d\u662f\u6709\u6548\u7684\u6570\u5b57\uff0c\u5df2\u8df3\u8fc7\u3002&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u80fd\u591f\u6709\u6548\u5730\u5904\u7406\u5927\u6570\u636e\u91cf\u8f93\u5165\uff0c\u5e76\u51cf\u5c11\u7528\u6237\u624b\u52a8\u8f93\u5165\u7684\u9519\u8bef\u3002<strong>\u6587\u4ef6\u8f93\u5165\u9002\u7528\u4e8e\u9700\u8981\u4ece\u5916\u90e8\u6570\u636e\u6e90\u5bfc\u5165\u6570\u5b57\u7684\u573a\u666f\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u603b\u7ed3\u6765\u8bf4\uff0cPython\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fde\u7eed\u8f93\u5165\u6570\u5b57\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\uff0c\u6bd4\u5982\u8f93\u5165\u6b21\u6570\u662f\u5426\u5df2\u77e5\u3001\u662f\u5426\u9700\u8981\u8f93\u5165\u9a8c\u8bc1\u3001\u8f93\u5165\u6570\u636e\u7684\u89c4\u6a21\u7b49\u3002\u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u786e\u4fdd\u8f93\u5165\u7684\u6709\u6548\u6027\u548c\u7528\u6237\u4f53\u9a8c\u90fd\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002<strong>\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u5faa\u73af\u3001\u5f02\u5e38\u5904\u7406\u3001\u4ee5\u53ca\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5904\u7406\u7528\u6237\u8f93\u5165\u7684\u6570\u5b57\u3002<\/strong><\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u8fde\u7eed\u8f93\u5165\u591a\u4e2a\u6570\u5b57\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u7ed3\u6784\u6765\u5b9e\u73b0\u8fde\u7eed\u8f93\u5165\u591a\u4e2a\u6570\u5b57\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>while<\/code>\u5faa\u73af\uff0c\u76f4\u5230\u7528\u6237\u8f93\u5165\u7279\u5b9a\u7684\u7ed3\u675f\u7b26\u53f7\uff08\u5982&quot;exit&quot;\uff09\u4e3a\u6b62\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u6536\u96c6\u7528\u6237\u8f93\u5165\u7684\u591a\u4e2a\u6570\u5b57\u5e76\u5b58\u50a8\u5728\u5217\u8868\u4e2d\uff0c\u4fbf\u4e8e\u540e\u7eed\u5904\u7406\u6216\u8ba1\u7b97\u3002<\/p>\n<p><strong>\u6211\u53ef\u4ee5\u5728Python\u4e2d\u8f93\u5165\u8d1f\u6570\u548c\u5c0f\u6570\u5417\uff1f<\/strong><br \/>\u662f\u7684\uff0cPython\u652f\u6301\u8f93\u5165\u8d1f\u6570\u548c\u5c0f\u6570\u3002\u5728\u8f93\u5165\u65f6\uff0c\u4f60\u53ea\u9700\u786e\u4fdd\u8f93\u5165\u7684\u683c\u5f0f\u6b63\u786e\uff0c\u4f8b\u5982\u8f93\u5165&quot;-5&quot;\u6216&quot;3.14&quot;\u3002\u5728\u5904\u7406\u8fd9\u4e9b\u6570\u5b57\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>float()<\/code>\u51fd\u6570\u5c06\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\uff0c\u4ee5\u4fbf\u8fdb\u884c\u6570\u5b66\u8fd0\u7b97\u3002<\/p>\n<p><strong>\u5982\u4f55\u5904\u7406\u7528\u6237\u8f93\u5165\u4e2d\u7684\u5f02\u5e38\u60c5\u51b5\uff1f<\/strong><br \/>\u5728\u7528\u6237\u8f93\u5165\u6570\u5b57\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u65e0\u6548\u8f93\u5165\uff08\u4f8b\u5982\u5b57\u6bcd\u6216\u7279\u6b8a\u5b57\u7b26\uff09\u3002\u4e3a\u4e86\u907f\u514d\u7a0b\u5e8f\u5d29\u6e83\uff0c\u53ef\u4ee5\u4f7f\u7528<code>try...except<\/code>\u8bed\u53e5\u6355\u83b7\u5f02\u5e38\u3002\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u4e0d\u662f\u6570\u5b57\uff0c\u7a0b\u5e8f\u53ef\u4ee5\u63d0\u793a\u7528\u6237\u91cd\u65b0\u8f93\u5165\u6709\u6548\u7684\u6570\u5b57\uff0c\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u8fde\u7eed\u8f93\u5165\u6570\u5b57\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\u3001\u5c06\u8f93\u5165\u7684\u6570\u5b57\u5b58\u50a8\u5728\u5217\u8868\u6216\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u4e2d\u3001\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u6765\u786e\u4fdd\u8f93\u5165 [&hellip;]","protected":false},"author":3,"featured_media":965171,"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\/965167"}],"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=965167"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/965167\/revisions"}],"predecessor-version":[{"id":965172,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/965167\/revisions\/965172"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/965171"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=965167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=965167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=965167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}