{"id":146,"date":"2023-03-27T00:52:11","date_gmt":"2023-04-25T06:36:44","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8python%e4%b8%ad%e5%b0%86%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e6%b5%ae%e7%82%b9%e6%95%b0\/"},"modified":"2025-08-01T00:34:37","modified_gmt":"2025-07-31T16:34:37","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8python%e4%b8%ad%e5%b0%86%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e6%b5%ae%e7%82%b9%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8python%e4%b8%ad%e5%b0%86%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2%e4%b8%ba%e6%b5%ae%e7%82%b9%e6%95%b0\/","title":{"rendered":"Python\u5b57\u7b26\u4e32\u8f6c\u6d6e\u70b9\u6570\uff1a\u5b9e\u7528\u6559\u7a0b\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u6790"},"content":{"rendered":"<h3>\u5f15\u8a00<\/h3>\n<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Python\u4e2d\u8fdb\u884c\u6570\u636e\u7c7b\u578b\u8f6c\u6362\uff0c\u7279\u522b\u662f\u4f7f\u7528<code>float()<\/code>\u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\uff0c\u4ee5\u53ca\u4f7f\u7528<code>str()<\/code>\u51fd\u6570\u5c06\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u5728\u8fdb\u884c\u8ba1\u7b97\u548c\u6570\u636e\u8fde\u63a5\u4e4b\u524d\uff0c\u6b63\u786e\u5730\u8f6c\u6362\u6570\u636e\u7c7b\u578b\u81f3\u5173\u91cd\u8981\uff0c\u8fd9\u80fd\u6709\u6548\u9632\u6b62\u8fd0\u884c\u65f6\u9519\u8bef\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u672c\u6559\u7a0b\uff0c\u60a8\u9700\u8981\uff1a<\/p>\n<ul>\n<li>\u719f\u6089Python 3\u7684\u5b89\u88c5\u8fc7\u7a0b\u3002<\/li>\n<li>\u5177\u5907Python\u7f16\u7a0b\u57fa\u7840\uff0c\u4f8b\u5982\u901a\u8fc7\u9605\u8bfb\u300aPython 3\u7f16\u7a0b\u7cfb\u5217\u6559\u7a0b\u300b\u6216\u4f7f\u7528VS Code\u8fdb\u884cPython\u5f00\u53d1\u3002<\/li>\n<\/ul>\n<p>\u672c\u6559\u7a0b\u57fa\u4e8ePython 3.9.6\u7248\u672c\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n<h2>\u4f7f\u7528<code>float()<\/code>\u51fd\u6570<\/h2>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Python\u5185\u7f6e\u7684<code>float()<\/code>\u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\u3002\u8be5\u51fd\u6570\u4e13\u95e8\u7528\u4e8e\u5c06\u5bf9\u8c61\u8f6c\u6362\u4e3a\u6d6e\u70b9\u7c7b\u578b\u3002\u5728\u5185\u90e8\uff0c<code>float()<\/code>\u51fd\u6570\u4f1a\u8c03\u7528\u6307\u5b9a\u5bf9\u8c61\u7684<code>__float__()<\/code>\u65b9\u6cd5\u3002<\/p>\n<h3>\u793a\u4f8b\uff1a\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570<\/h3>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2aPython\u793a\u4f8b\u6765\u6f14\u793a\u5982\u4f55\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\uff1a<\/p>\n<pre class=\"post-pre\"><code>input_1 = '10.5674'\r\n\r\ninput_1 = <mark><span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_1<mark><span class=\"token punctuation\">)<\/span><\/mark>\r\n\r\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">type<\/span><span class=\"token punctuation\">(<\/span>input_1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u6d6e\u70b9\u6570\u503c ='<\/span><span class=\"token punctuation\">,<\/span> input_1<span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<pre class=\"post-pre\"><code>&lt;class 'float'&gt;\r\n\u6d6e\u70b9\u6570\u503c = 10.5674\r\n<\/code><\/pre>\n<p>\u4ece\u7ed3\u679c\u53ef\u4ee5\u770b\u51fa\uff0c\u5b57\u7b26\u4e32\u503c<code>'10.5674'<\/code>\u5df2\u6210\u529f\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\u503c<code>10.5674<\/code>\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u9700\u8981\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\uff1f<\/h3>\n<p>\u5f53\u6211\u4eec\u901a\u8fc7\u7ec8\u7aef\u63a5\u6536\u7528\u6237\u8f93\u5165\u7684\u6d6e\u70b9\u6570\u503c\uff0c\u6216\u8005\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6d6e\u70b9\u6570\u503c\u65f6\uff0c\u8fd9\u4e9b\u6570\u636e\u901a\u5e38\u4f1a\u88ab\u89c6\u4e3a\u5b57\u7b26\u4e32\u5bf9\u8c61\u3002\u4e3a\u4e86\u80fd\u591f\u5bf9\u5b83\u4eec\u8fdb\u884c\u52a0\u6cd5\u3001\u4e58\u6cd5\u7b49\u5fc5\u8981\u7684\u6570\u5b66\u8fd0\u7b97\uff0c\u6211\u4eec\u5fc5\u987b\u663e\u5f0f\u5730\u5c06\u5b83\u4eec\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code>input_1 = <span class=\"token builtin\">input<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u8bf7\u8f93\u5165\u7b2c\u4e00\u4e2a\u6d6e\u70b9\u6570\u503c\uff1a\\n'<\/span><span class=\"token punctuation\">)<\/span>\r\ninput_1 = <mark><span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_1<mark><span class=\"token punctuation\">)<\/span><\/mark>\r\n\r\ninput_2 = <span class=\"token builtin\">input<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u6d6e\u70b9\u6570\u503c\uff1a\\n'<\/span><span class=\"token punctuation\">)<\/span>\r\ninput_2 = <mark><span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_2<mark><span class=\"token punctuation\">)<\/span><\/mark>\r\n\r\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f'<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_1<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u548c <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_2<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u7684\u548c\u662f <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_1<span class=\"token operator\">+<\/span>input_2<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">'<\/span><\/span><span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f\uff1a\u5982\u679c\u60a8\u4e0d\u719f\u6089\u4f7f\u7528f\u524d\u7f00\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\uff0c\u8bf7\u9605\u8bfb<a href=\"#\" target=\"_blank\">Python\u4e2d\u7684f-strings<\/a>\u76f8\u5173\u6559\u7a0b\u3002\u8ba9\u6211\u4eec\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\uff0c\u5e76\u4e3a<code>input_1<\/code>\u548c<code>input_2<\/code>\u63d0\u4f9b\u6d6e\u70b9\u6570\u503c\u3002<\/p>\n<\/div>\n<pre class=\"post-pre\"><code>\u8bf7\u8f93\u5165\u7b2c\u4e00\u4e2a\u6d6e\u70b9\u6570\u503c\uff1a\r\n10.234\r\n\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u6d6e\u70b9\u6570\u503c\uff1a\r\n2.456\r\n10.234 \u548c 2.456 \u7684\u548c\u662f 12.69\r\n<\/code><\/pre>\n<p>10.234\u548c2.456\u7684\u548c\u662f12.69\u3002<\/p>\n<p>\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5e94\u8be5\u4f7f\u7528<code>try-except<\/code>\u5757\u6765\u6355\u6349\u7528\u6237\u8f93\u5165\u65e0\u6548\u65f6\u53ef\u80fd\u53d1\u751f\u7684\u5f02\u5e38\u60c5\u51b5\uff0c\u4ee5\u589e\u5f3a\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u3002<\/p>\n<h2>\u4f7f\u7528<code>str()<\/code>\u51fd\u6570<\/h2>\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528<code>str()<\/code>\u51fd\u6570\u5c06\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u5728\u9700\u8981\u8fde\u63a5\u6d6e\u70b9\u6570\u503c\uff08\u4f8b\u5982\uff0c\u5c06\u5176\u4e0e\u5176\u4ed6\u5b57\u7b26\u4e32\u62fc\u63a5\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u53e5\u5b50\uff09\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u79cd\u8f6c\u6362\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h3>\u793a\u4f8b\uff1a\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32<\/h3>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Python\u4e2d\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51713\u90e8\u5206\uff09\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u4f8b\u5b50\u5427\u3002<\/p>\n<pre class=\"post-pre\"><code>input_1 <span class=\"token operator\">=<\/span> <span class=\"token number\">10.23<\/span>\r\ninput_2 <span class=\"token operator\">=<\/span> <span class=\"token number\">20.34<\/span>\r\ninput_3 <span class=\"token operator\">=<\/span> <span class=\"token number\">30.45<\/span>\r\n\r\n<span class=\"token comment\"># \u4f7f\u7528Python 3.6+\u7684f-string\uff0c\u65e7\u7248\u672c\u8bf7\u4f7f\u7528format()<\/span>\r\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f'\u8fde\u63a5<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_1<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u548c<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_2<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u7684\u7ed3\u679c\u662f<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_1<mark><span class=\"token punctuation\">)<\/span><\/mark> <span class=\"token operator\">+<\/span> <mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_2<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">'<\/span><\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f'\u6765\u81ea<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_1<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u3001<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_2<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u548c<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_3<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u7684CSV\u683c\u5f0f\uff1a\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_1<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">,<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_2<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">,<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_3<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">'<\/span><\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f'\u6765\u81ea<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_1<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u3001<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_2<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u548c<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>input_3<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u7684CSV\u683c\u5f0f\uff1a\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token string\">\", \"<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_1<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">,<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_2<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">,<\/span><mark><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span><\/mark>input_3<mark><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">'<\/span><\/span><span class=\"token punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u6765\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code>\u8fde\u63a510.23\u548c20.34\u7684\u7ed3\u679c\u662f10.2320.34\r\n\u6765\u81ea10.23\u300120.34\u548c30.45\u7684CSV\u683c\u5f0f\uff1a\r\n10.23,20.34,30.45\r\n\u6765\u81ea10.23\u300120.34\u548c30.45\u7684CSV\u683c\u5f0f\uff1a\r\n10.23, 20.34, 30.45\r\n<\/code><\/pre>\n<p>\u8fde\u63a510.23\u548c20.34\u4f1a\u751f\u6210\u5b57\u7b26\u4e32&#8217;10.2320.34&#8217;\u3002\u6b64\u4ee3\u7801\u8fd8\u4f1a\u751f\u6210\u4e24\u4e2a\u9017\u53f7\u5206\u9694\u503c\uff08CSV\uff09\u7684\u7248\u672c\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u5728\u4e0a\u8ff0\u7a0b\u5e8f\u4e2d\u4e0d\u5c06\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c<code>join()<\/code>\u51fd\u6570\u4f1a\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\u3002\u6b64\u5916\uff0c\u6211\u4eec\u4e5f\u65e0\u6cd5\u4f7f\u7528<code>+<\/code>\u8fd0\u7b97\u7b26\u8fdb\u884c\u8fde\u63a5\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5c06\u6d6e\u70b9\u6570\u76f8\u52a0\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Python\u4e2d\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51713\u90e8\u5206\uff09\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u5728\u6211\u4eec\u7684GitHub\u4ed3\u5e93\u4e2d\u67e5\u770b\u5b8c\u6574\u7684Python\u811a\u672c\u548c\u66f4\u591aPython\u793a\u4f8b\u3002<\/p>\n<h3>\u53c2\u8003\u6587\u732e:<\/h3>\n<ul class=\"post-ul\">\n<li><a href=\"https:\/\/docs.python.org\/zh-cn\/3\/library\/functions.html#float\" target=\"_blank\" rel=\"noopener\">float() \u5b98\u65b9\u6587\u6863<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Python\u4e2d\u8fdb\u884c\u6570\u636e\u7c7b\u578b\u8f6c\u6362\uff0c\u7279\u522b\u662f\u4f7f\u7528float()\u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[32,243,640,641,307],"class_list":["post-146","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-python","tag-243","tag-640","tag-641","tag-307"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) 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