{"id":1128825,"date":"2025-01-08T20:24:03","date_gmt":"2025-01-08T12:24:03","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1128825.html"},"modified":"2025-01-08T20:24:06","modified_gmt":"2025-01-08T12:24:06","slug":"python%e5%a6%82%e4%bd%95%e5%8a%a0%e5%8d%83%e4%bd%8d%e5%88%86%e9%9a%94%e7%ac%a6%e5%8f%b7","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1128825.html","title":{"rendered":"python\u5982\u4f55\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u53f7"},"content":{"rendered":"

\"python\u5982\u4f55\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u53f7\"<\/p>\n

Python\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u53f7\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3001f-string\u3001locale\u6a21\u5757\u7b49\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u548cf-string\uff0c\u56e0\u4e3a\u5b83\u4eec\u7b80\u5355\u3001\u76f4\u89c2\u3001\u6613\u4e8e\u7406\u89e3\u3002<\/strong> \u5176\u4e2d\uff0c\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u5185\u7f6e\u7684format()\u51fd\u6570\u5b9e\u73b0\uff0c\u800cf-string\u5219\u662fPython 3.6\u5f15\u5165\u7684\u4e00\u79cd\u66f4\u52a0\u7b80\u6d01\u7684\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/p>\n<\/p>\n

\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff1a\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684format()\u51fd\u6570\uff0c\u6307\u5b9a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u4e2d\u7684\u5343\u4f4d\u5206\u9694\u7b26\u3002\u4f8b\u5982\uff0c"{:,}".format(1234567)<\/code>\u5c06\u8fd4\u56de'1,234,567'<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528\u8d77\u6765\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u5728\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u4e2d\u4f7f\u7528\u9017\u53f7\u4f5c\u4e3a\u5206\u9694\u7b26\u5373\u53ef\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5<\/h3>\n<\/p>\n

\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u662fPython\u4e2d\u975e\u5e38\u5e38\u7528\u7684\u4e00\u79cd\u65b9\u6cd5\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u7528\u6765\u52a0\u5343\u4f4d\u5206\u9694\u7b26\uff0c\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u5176\u4ed6\u590d\u6742\u7684\u683c\u5f0f\u5316\u9700\u6c42\u3002\u8fd9\u91cc\u6211\u4eec\u4e3b\u8981\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u6765\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u3002<\/p>\n<\/p>\n

1\u3001\u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684format()<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3002\u5177\u4f53\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n

number = 1234567<\/p>\n
formatted_number = "{:,}".format(number)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86"{:,}"<\/code>\u4f5c\u4e3a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u7684\u9017\u53f7\u8868\u793a\u6211\u4eec\u5e0c\u671b\u5c06\u6570\u5b57\u6309\u5343\u4f4d\u52a0\u4e0a\u5206\u9694\u7b26\u3002<\/p>\n<\/p>\n
2\u3001\u4f7f\u7528\u4e0d\u540c\u7684\u5206\u9694\u7b26<\/h4>\n<\/p>\n
\u9664\u4e86\u4f7f\u7528\u9017\u53f7\u4f5c\u4e3a\u5206\u9694\u7b26\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u7b26\u53f7\uff0c\u6bd4\u5982\u70b9\u53f7\uff08.\uff09\u6216\u8005\u7a7a\u683c\u3002\u53ea\u9700\u5728\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u76f8\u5e94\u7684\u7b26\u53f7\u5373\u53ef\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
number = 1234567<\/p>\n
formatted_number = "{:,.2f}".format(number)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567.00'<\/p>\n
formatted_number = "{:,.2f}".format(1234567.12345)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567.12'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86"{:,.2f}"<\/code>\u4f5c\u4e3a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u7684.2f<\/code>\u8868\u793a\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\u3002<\/p>\n<\/p>\n
3\u3001\u5904\u7406\u8d1f\u6570\u548c\u5927\u6570<\/h4>\n<\/p>\n
\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u540c\u6837\u9002\u7528\u4e8e\u8d1f\u6570\u548c\u5927\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
number = -1234567<\/p>\n
formatted_number = "{:,}".format(number)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '-1,234,567'<\/p>\n
number = 1234567890123456789<\/p>\n
formatted_number = "{:,}".format(number)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567,890,123,456,789'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001f-string\u65b9\u6cd5<\/h3>\n<\/p>\n
f-string\u662fPython 3.6\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u5b83\u6bd4\u4f20\u7edf\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65b9\u6cd5\u66f4\u52a0\u7b80\u6d01\u548c\u76f4\u89c2\u3002\u4f7f\u7528f-string\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
1\u3001\u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n
number = 1234567<\/p>\n
formatted_number = f"{number:,}"<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86f"{number:,}"<\/code>\u4f5c\u4e3a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u7684\u9017\u53f7\u8868\u793a\u6211\u4eec\u5e0c\u671b\u5c06\u6570\u5b57\u6309\u5343\u4f4d\u52a0\u4e0a\u5206\u9694\u7b26\u3002<\/p>\n<\/p>\n
2\u3001\u4fdd\u7559\u5c0f\u6570\u4f4d<\/h4>\n<\/p>\n
\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528f-string\u6765\u4fdd\u7559\u5c0f\u6570\u4f4d\uff0c\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
number = 1234567.12345<\/p>\n
formatted_number = f"{number:,.2f}"<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567.12'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86f"{number:,.2f}"<\/code>\u4f5c\u4e3a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u7684.2f<\/code>\u8868\u793a\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\u3002<\/p>\n<\/p>\n
3\u3001\u5904\u7406\u8d1f\u6570\u548c\u5927\u6570<\/h4>\n<\/p>\n
f-string\u540c\u6837\u9002\u7528\u4e8e\u8d1f\u6570\u548c\u5927\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
number = -1234567<\/p>\n
formatted_number = f"{number:,}"<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '-1,234,567'<\/p>\n
number = 1234567890123456789<\/p>\n
formatted_number = f"{number:,}"<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567,890,123,456,789'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528locale\u6a21\u5757<\/h3>\n<\/p>\n
\u9664\u4e86\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u548cf-string\u65b9\u6cd5\uff0cPython\u8fd8\u63d0\u4f9b\u4e86locale\u6a21\u5757\uff0c\u7528\u4e8e\u5904\u7406\u4e0e\u5730\u533a\u76f8\u5173\u7684\u683c\u5f0f\u5316\u9700\u6c42\u3002locale\u6a21\u5757\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u5730\u533a\u8bbe\u7f6e\u6765\u683c\u5f0f\u5316\u6570\u5b57\uff0c\u5305\u62ec\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u3002<\/p>\n<\/p>\n
1\u3001\u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5bfc\u5165locale\u6a21\u5757\u5e76\u8bbe\u7f6e\u5730\u533a\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
import locale<\/p>\n
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')<\/p>\n
number = 1234567<\/p>\n
formatted_number = locale.format_string("%d", number, grouping=True)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86locale.format_string()<\/code>\u51fd\u6570\uff0c\u5e76\u6307\u5b9a\u4e86grouping=True<\/code>\u6765\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u3002<\/p>\n<\/p>\n
2\u3001\u5904\u7406\u5c0f\u6570\u4f4d<\/h4>\n<\/p>\n
locale\u6a21\u5757\u540c\u6837\u652f\u6301\u5904\u7406\u5c0f\u6570\u4f4d\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
import locale<\/p>\n
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')<\/p>\n
number = 1234567.12345<\/p>\n
formatted_number = locale.format_string("%f", number, grouping=True)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1,234,567.123450'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86"%f"<\/code>\u4f5c\u4e3a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u6211\u4eec\u5e0c\u671b\u4fdd\u7559\u5c0f\u6570\u4f4d\u3002<\/p>\n<\/p>\n
3\u3001\u5904\u7406\u4e0d\u540c\u5730\u533a<\/h4>\n<\/p>\n
locale\u6a21\u5757\u8fd8\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u5730\u533a\u7684\u8bbe\u7f6e\u6765\u683c\u5f0f\u5316\u6570\u5b57\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
import locale<\/p>\n
locale.setlocale(locale.LC_ALL, 'de_DE.UTF-8')<\/p>\n
number = 1234567<\/p>\n
formatted_number = locale.format_string("%d", number, grouping=True)<\/p>\n
print(formatted_number)  # \u8f93\u51fa: '1.234.567'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5c06\u5730\u533a\u8bbe\u7f6e\u4e3a\u5fb7\u56fd\uff08'de_DE.UTF-8'<\/code>\uff09\uff0c\u56e0\u6b64\u5343\u4f4d\u5206\u9694\u7b26\u53d8\u6210\u4e86\u70b9\u53f7\u3002<\/p>\n<\/p>\n
\u56db\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3001f-string\u3001locale\u6a21\u5757\u7b49\u3002\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u548cf-string\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4eec\u7b80\u5355\u3001\u76f4\u89c2\u3001\u6613\u4e8e\u7406\u89e3\u3002<\/strong> locale\u6a21\u5757\u5219\u9002\u7528\u4e8e\u5904\u7406\u4e0e\u5730\u533a\u76f8\u5173\u7684\u683c\u5f0f\u5316\u9700\u6c42\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u4e3a\u6570\u5b57\u6dfb\u52a0\u5343\u4f4d\u5206\u9694\u7b26\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684\u683c\u5f0f\u5316\u65b9\u6cd5\u6765\u4e3a\u6570\u5b57\u6dfb\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528format()<\/code>\u51fd\u6570\u6216f-string\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
number = 1234567.89\nformatted_number = f"{number:,.2f}"\nprint(formatted_number)  # \u8f93\u51fa\uff1a1,234,567.89\n<\/code><\/pre>\n
\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u8f7b\u677e\u5904\u7406\u6574\u6570\u548c\u5c0f\u6570\u7684\u683c\u5f0f\u5316\u3002<\/p>\n
\u5728Python\u4e2d\uff0c\u5982\u4f55\u5904\u7406\u5305\u542b\u5343\u4f4d\u5206\u9694\u7b26\u7684\u5b57\u7b26\u4e32\uff1f<\/strong>
\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u5305\u542b\u5343\u4f4d\u5206\u9694\u7b26\u7684\u5b57\u7b26\u4e32\uff0c\u5e76\u5e0c\u671b\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528replace()<\/code>\u65b9\u6cd5\u53bb\u6389\u5206\u9694\u7b26\uff0c\u518d\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\u6216\u6574\u6570\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
number_str = "1,234,567.89"\nnumber = float(number_str.replace(",", ""))\nprint(number)  # \u8f93\u51fa\uff1a1234567.89\n<\/code><\/pre>\n
\u8fd9\u79cd\u65b9\u6cd5\u786e\u4fdd\u4e86\u4f60\u53ef\u4ee5\u5904\u7406\u7528\u6237\u8f93\u5165\u7684\u683c\u5f0f\u3002<\/p>\n
Python\u4e2d\u662f\u5426\u6709\u5e93\u53ef\u4ee5\u8f7b\u677e\u6dfb\u52a0\u5343\u4f4d\u5206\u9694\u7b26\uff1f<\/strong>
\u786e\u5b9e\u6709\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5e93\u53ef\u4ee5\u5e2e\u52a9\u683c\u5f0f\u5316\u6570\u5b57\uff0c\u5982numpy<\/code>\u548cpandas<\/code>\u3002\u4f8b\u5982\uff0c\u5728pandas<\/code>\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528apply<\/code>\u65b9\u6cd5\u8f7b\u677e\u5b9e\u73b0\u683c\u5f0f\u5316\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
import pandas as pd\n\ndf = pd.DataFrame({'numbers': [1234567, 8901234]})\ndf['formatted'] = df['numbers'].apply(lambda x: f"{x:,}")\nprint(df)\n<\/code><\/pre>\n
\u4f7f\u7528\u8fd9\u4e9b\u5e93\u53ef\u4ee5\u5904\u7406\u66f4\u5927\u89c4\u6a21\u7684\u6570\u636e\uff0c\u5e76\u63d0\u4f9b\u4e30\u5bcc\u7684\u529f\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u52a0\u5343\u4f4d\u5206\u9694\u7b26\u53f7\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3001f-string\u3001locale\u6a21\u5757\u7b49\u3002\u6700\u5e38\u7528\u7684\u65b9 […]","protected":false},"author":3,"featured_media":1128832,"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\/1128825"}],"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=1128825"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1128825\/revisions"}],"predecessor-version":[{"id":1128834,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1128825\/revisions\/1128834"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1128832"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1128825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1128825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1128825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}