{"id":1128693,"date":"2025-01-08T20:22:53","date_gmt":"2025-01-08T12:22:53","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1128693.html"},"modified":"2025-01-08T20:22:56","modified_gmt":"2025-01-08T12:22:56","slug":"%e5%a6%82%e4%bd%95%e8%ae%a9python%e8%be%93%e5%87%ba%e7%99%be%e5%88%86%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1128693.html","title":{"rendered":"\u5982\u4f55\u8ba9python\u8f93\u51fa\u767e\u5206\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25095335\/ee795e42-96ba-4e68-87cd-ea4d3bd5068d.webp\" alt=\"\u5982\u4f55\u8ba9python\u8f93\u51fa\u767e\u5206\u6570\" \/><\/p>\n<p><p> <strong>\u5982\u4f55\u8ba9python\u8f93\u51fa\u767e\u5206\u6570<\/strong><\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\u8f93\u51fa\u767e\u5206\u6570\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\uff0c<strong>\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3001\u5229\u7528f-string\u3001\u7ed3\u5408decimal\u6a21\u5757<\/strong>\u7b49\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u5e2e\u52a9\u60a8\u7406\u89e3\u548c\u638c\u63e1\u5982\u4f55\u8ba9Python\u8f93\u51fa\u767e\u5206\u6570\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316<\/h3>\n<\/p>\n<p><p>\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u662f\u4e00\u79cd\u7075\u6d3b\u4e14\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u8001\u5f0f\u7684\u767e\u5206\u53f7\u683c\u5f0f\u5316\u4ee5\u53ca\u65b0\u7684str.format()\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><h4>\u767e\u5206\u53f7\u683c\u5f0f\u5316<\/h4>\n<\/p>\n<p><p>\u767e\u5206\u53f7\u683c\u5f0f\u5316\u662fPython\u4e2d\u4e00\u79cd\u7ecf\u5178\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u7b80\u5355\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">value = 0.25<\/p>\n<p>percentage = &quot;%.2f%%&quot; % (value * 100)<\/p>\n<p>print(percentage)  # \u8f93\u51fa: 25.00%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>%.2f%%<\/code>\u7684\u542b\u4e49\u662f\u5c06\u6570\u5b57\u683c\u5f0f\u5316\u4e3a\u5c0f\u6570\u70b9\u540e\u4e24\u4f4d\uff0c\u5e76\u5728\u540e\u9762\u52a0\u4e0a\u767e\u5206\u53f7\u3002<code>value * 100<\/code>\u5c06\u5c0f\u6570\u8f6c\u6362\u4e3a\u767e\u5206\u6570\u3002<\/p>\n<\/p>\n<p><h4>\u4f7f\u7528str.format()\u65b9\u6cd5<\/h4>\n<\/p>\n<p><p>str.format()\u65b9\u6cd5\u662f\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5b83\u6bd4\u767e\u5206\u53f7\u683c\u5f0f\u5316\u66f4\u7075\u6d3b\u548c\u5f3a\u5927\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">value = 0.25<\/p>\n<p>percentage = &quot;{:.2f}%&quot;.format(value * 100)<\/p>\n<p>print(percentage)  # \u8f93\u51fa: 25.00%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u91cc\u7684<code>{:.2f}%<\/code>\u4e0e\u4e4b\u524d\u7684<code>%.2f%%<\/code>\u6709\u76f8\u540c\u7684\u4f5c\u7528\uff0c\u5c06\u6570\u5b57\u683c\u5f0f\u5316\u4e3a\u5c0f\u6570\u70b9\u540e\u4e24\u4f4d\u5e76\u52a0\u4e0a\u767e\u5206\u53f7\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u5229\u7528f-string<\/h3>\n<\/p>\n<p><p>f-string\u662fPython 3.6\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5b83\u66f4\u52a0\u7b80\u6d01\u548c\u76f4\u89c2\uff0c\u975e\u5e38\u9002\u5408\u5728\u5b57\u7b26\u4e32\u4e2d\u76f4\u63a5\u5d4c\u5165\u8868\u8fbe\u5f0f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">value = 0.25<\/p>\n<p>percentage = f&quot;{value * 100:.2f}%&quot;<\/p>\n<p>print(percentage)  # \u8f93\u51fa: 25.00%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c<code>f&quot;{value * 100:.2f}%&quot;<\/code>\u4e2d\uff0c<code>value * 100<\/code>\u5c06\u5c0f\u6570\u8f6c\u6362\u4e3a\u767e\u5206\u6570\uff0c<code>:.2f<\/code>\u683c\u5f0f\u5316\u4e3a\u5c0f\u6570\u70b9\u540e\u4e24\u4f4d\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u7ed3\u5408decimal\u6a21\u5757<\/h3>\n<\/p>\n<p><p>decimal\u6a21\u5757\u63d0\u4f9b\u4e86\u5bf9\u5341\u8fdb\u5236\u6d6e\u70b9\u8fd0\u7b97\u7684\u652f\u6301\uff0c\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u7cbe\u5ea6\u8ba1\u7b97\u7684\u573a\u666f\u3002\u5728\u8f93\u51fa\u767e\u5206\u6570\u65f6\uff0c\u7ed3\u5408decimal\u6a21\u5757\u53ef\u4ee5\u907f\u514d\u6d6e\u70b9\u6570\u7cbe\u5ea6\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><h4>\u4f7f\u7528decimal\u6a21\u5757<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">from decimal import Decimal, getcontext<\/p>\n<p>value = Decimal(&#39;0.25&#39;)<\/p>\n<p>percentage = f&quot;{(value * 100):.2f}%&quot;<\/p>\n<p>print(percentage)  # \u8f93\u51fa: 25.00%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u53ef\u4ee5\u770b\u5230decimal\u6a21\u5757\u5728\u5904\u7406\u9ad8\u7cbe\u5ea6\u9700\u6c42\u65f6\u7684\u4f18\u52bf\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u5e94\u7528\u573a\u666f\u4e0e\u5b9e\u9645\u6848\u4f8b<\/h3>\n<\/p>\n<p><p>\u4e0b\u9762\u5c06\u901a\u8fc7\u51e0\u4e2a\u5b9e\u9645\u6848\u4f8b\u6765\u5c55\u793a\u5982\u4f55\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u8f93\u51fa\u767e\u5206\u6570\u3002<\/p>\n<\/p>\n<p><h4>\u6570\u636e\u5206\u6790\u573a\u666f<\/h4>\n<\/p>\n<p><p>\u5728\u6570\u636e\u5206\u6790\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u5c06\u8ba1\u7b97\u7ed3\u679c\u8f6c\u6362\u4e3a\u767e\u5206\u6570\u5f62\u5f0f\u6765\u8fdb\u884c\u5c55\u793a\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u7ec4\u5b66\u751f\u8003\u8bd5\u6210\u7ee9\uff0c\u9700\u8981\u8ba1\u7b97\u6bcf\u4e2a\u5b66\u751f\u7684\u53ca\u683c\u7387\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">scores = [85, 90, 78, 88, 76, 95, 89, 72]<\/p>\n<p>passing_score = 80<\/p>\n<p>passing_count = sum(1 for score in scores if score &gt;= passing_score)<\/p>\n<p>total_count = len(scores)<\/p>\n<p>passing_rate = passing_count \/ total_count<\/p>\n<p>percentage = f&quot;{passing_rate * 100:.2f}%&quot;<\/p>\n<p>print(f&quot;\u53ca\u683c\u7387: {percentage}&quot;)  # \u8f93\u51fa: \u53ca\u683c\u7387: 62.50%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u8ba1\u7b97\u53ca\u683c\u7684\u5b66\u751f\u6570\u91cf\uff0c\u7136\u540e\u8ba1\u7b97\u53ca\u683c\u7387\uff0c\u5e76\u6700\u7ec8\u683c\u5f0f\u5316\u4e3a\u767e\u5206\u6570\u8f93\u51fa\u3002<\/p>\n<\/p>\n<p><h4>\u8d22\u52a1\u62a5\u8868\u573a\u666f<\/h4>\n<\/p>\n<p><p>\u5728\u8d22\u52a1\u62a5\u8868\u4e2d\uff0c\u767e\u5206\u6570\u7684\u5e94\u7528\u4e5f\u975e\u5e38\u5e7f\u6cdb\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u9700\u8981\u8ba1\u7b97\u67d0\u4e2a\u5b63\u5ea6\u7684\u589e\u957f\u7387\u5e76\u8f93\u51fa\u767e\u5206\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">previous_revenue = 150000<\/p>\n<p>current_revenue = 180000<\/p>\n<p>growth_rate = (current_revenue - previous_revenue) \/ previous_revenue<\/p>\n<p>percentage = f&quot;{growth_rate * 100:.2f}%&quot;<\/p>\n<p>print(f&quot;\u589e\u957f\u7387: {percentage}&quot;)  # \u8f93\u51fa: \u589e\u957f\u7387: 20.00%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u8ba1\u7b97\u5f53\u524d\u6536\u5165\u4e0e\u4e4b\u524d\u6536\u5165\u7684\u5dee\u503c\u5e76\u9664\u4ee5\u524d\u6536\u5165\uff0c\u5f97\u51fa\u589e\u957f\u7387\uff0c\u518d\u5c06\u5176\u683c\u5f0f\u5316\u4e3a\u767e\u5206\u6570\u8f93\u51fa\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u8fdb\u9636\u6280\u5de7\u4e0e\u4f18\u5316<\/h3>\n<\/p>\n<p><h4>\u4fdd\u7559\u52a8\u6001\u5c0f\u6570\u4f4d\u6570<\/h4>\n<\/p>\n<p><p>\u6709\u65f6\u5019\uff0c\u6211\u4eec\u5e0c\u671b\u6839\u636e\u5b9e\u9645\u9700\u8981\u52a8\u6001\u63a7\u5236\u5c0f\u6570\u4f4d\u6570\u3002\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">value = 0.25678<\/p>\n<p>decimal_places = 3<\/p>\n<p>percentage = f&quot;{value * 100:.{decimal_places}f}%&quot;<\/p>\n<p>print(percentage)  # \u8f93\u51fa: 25.678%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u5904\u7406\u7279\u6b8a\u60c5\u51b5<\/h4>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5b9e\u9645\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\uff0c\u6bd4\u5982\u8d1f\u6570\u6216\u6781\u5c0f\u6570\u503c\u3002\u8fd9\u65f6\u9700\u8981\u8fdb\u884c\u9002\u5f53\u7684\u5904\u7406\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">value = -0.00567<\/p>\n<p>percentage = f&quot;{value * 100:.2f}%&quot;<\/p>\n<p>print(percentage)  # \u8f93\u51fa: -0.57%<\/p>\n<p>value = 0.0000001234<\/p>\n<p>percentage = f&quot;{value * 100:.6f}%&quot;<\/p>\n<p>print(percentage)  # \u8f93\u51fa: 0.000012%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\u8f93\u51fa\u767e\u5206\u6570\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec<strong>\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3001\u5229\u7528f-string\u3001\u7ed3\u5408decimal\u6a21\u5757<\/strong>\u7b49\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u9002\u7528\u7684\u573a\u666f\u548c\u4f18\u52bf\u3002\u901a\u8fc7\u5b9e\u9645\u6848\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u8fd9\u4e9b\u65b9\u6cd5\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u3001\u6613\u8bfb\u548c\u9ad8\u6548\u3002<\/p>\n<\/p>\n<p><p>\u65e0\u8bba\u662f\u6570\u636e\u5206\u6790\u3001\u8d22\u52a1\u62a5\u8868\uff0c\u8fd8\u662f\u5176\u4ed6\u9700\u8981\u8f93\u51fa\u767e\u5206\u6570\u7684\u573a\u666f\uff0c\u638c\u63e1\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u80fd\u6781\u5927\u5730\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u548c\u4ee3\u7801\u8d28\u91cf\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff0c\u795d\u60a8\u5728Python\u7f16\u7a0b\u7684\u9053\u8def\u4e0a\u4e0d\u65ad\u8fdb\u6b65\uff01<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u683c\u5f0f\u5316\u4e3a\u767e\u5206\u6570\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u7684\u65b9\u6cd5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u767e\u5206\u6570\u3002\u5e38\u7528\u7684\u65b9\u5f0f\u5305\u62ec\u4f7f\u7528<code>format()<\/code>\u51fd\u6570\u6216f-string\uff08\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\uff09\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>&quot;{:.2%}&quot;.format(0.75)<\/code>\u5c06\u4f1a\u8f93\u51fa<code>75.00%<\/code>\uff0c\u800c\u4f7f\u7528f-string\u5219\u53ef\u4ee5\u5199\u6210<code>f&quot;{0.75:.2%}&quot;<\/code>\uff0c\u6548\u679c\u76f8\u540c\u3002<\/p>\n<p><strong>Python\u4e2d\u662f\u5426\u652f\u6301\u76f4\u63a5\u8f93\u51fa\u767e\u5206\u6570\uff1f<\/strong><br \/>Python\u5e76\u6ca1\u6709\u5185\u7f6e\u76f4\u63a5\u8f93\u51fa\u767e\u5206\u6570\u7684\u51fd\u6570\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u6570\u5b66\u8ba1\u7b97\u548c\u683c\u5f0f\u5316\u6765\u5b9e\u73b0\u3002\u5c06\u5c0f\u6570\u4e58\u4ee5100\uff0c\u7136\u540e\u9644\u52a0\u4e0a\u767e\u5206\u53f7\uff0c\u6216\u8005\u5229\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u80fd\u591f\u65b9\u4fbf\u5730\u5f97\u5230\u60f3\u8981\u7684\u767e\u5206\u6bd4\u663e\u793a\u3002<\/p>\n<p><strong>\u5982\u4f55\u5904\u7406\u8d1f\u6570\u6216\u96f6\u7684\u767e\u5206\u6570\u683c\u5f0f\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u8d1f\u6570\u548c\u96f6\u7684\u767e\u5206\u6570\u683c\u5f0f\u5316\u4e0e\u6b63\u6570\u7c7b\u4f3c\u3002\u8d1f\u6570\u4f1a\u4ee5\u8d1f\u53f7\u663e\u793a\uff0c\u4f8b\u5982<code>-0.25<\/code>\u683c\u5f0f\u5316\u4e3a<code>-25.00%<\/code>\u3002\u96f6\u5219\u4f1a\u663e\u793a\u4e3a<code>0.00%<\/code>\u3002\u4f7f\u7528<code>&quot;{:.2%}&quot;.format(value)<\/code>\u6216f-string\u90fd\u53ef\u4ee5\u5f97\u5230\u51c6\u786e\u7684\u7ed3\u679c\u3002\u6ce8\u610f\uff0c\u786e\u4fdd\u6570\u636e\u7c7b\u578b\u4e3a\u6d6e\u70b9\u6570\uff0c\u4ee5\u514d\u51fa\u73b0\u683c\u5f0f\u5316\u9519\u8bef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5982\u4f55\u8ba9python\u8f93\u51fa\u767e\u5206\u6570 \u5728Python\u4e2d\u8f93\u51fa\u767e\u5206\u6570\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\uff0c\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3001\u5229\u7528f-str 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