{"id":1054431,"date":"2024-12-31T14:42:12","date_gmt":"2024-12-31T06:42:12","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1054431.html"},"modified":"2024-12-31T14:42:14","modified_gmt":"2024-12-31T06:42:14","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e7%bb%99%e5%b0%8f%e6%95%b0%e6%8c%87%e5%ae%9a%e4%bd%8d%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1054431.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u7ed9\u5c0f\u6570\u6307\u5b9a\u4f4d\u6570"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u7ed9\u5c0f\u6570\u6307\u5b9a\u4f4d\u6570\"<\/p>\n

\u5728Python\u4e2d\u7ed9\u5c0f\u6570\u6307\u5b9a\u4f4d\u6570\u53ef\u4ee5\u901a\u8fc7\u51e0\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570round()\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001Decimal\u7c7b<\/strong>\u7b49\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u4e2d\u7684\u4e00\u79cd\uff1a<\/p>\n<\/p>\n

\u4f7f\u7528\u5185\u7f6e\u51fd\u6570round()\uff1a<\/strong> <\/p>\n<\/p>\n

number = 3.14159<\/p>\n
rounded_number = round(number, 2)<\/p>\n
print(rounded_number)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cround()<\/code>\u51fd\u6570\u5c06\u6570\u5b573.14159<\/code>\u56db\u820d\u4e94\u5165\u5230\u5c0f\u6570\u70b9\u540e2\u4f4d\uff0c\u7ed3\u679c\u662f3.14<\/code>\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u76f4\u63a5\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u60c5\u51b5\u3002<\/p>\n<\/p>\n
\n
\u4e00\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570round()<\/h3>\n<\/p>\n
round()<\/code>\u51fd\u6570\u662fPython\u5185\u7f6e\u7684\u51fd\u6570\uff0c\u7528\u4e8e\u5c06\u4e00\u4e2a\u6570\u5b57\u56db\u820d\u4e94\u5165\u5230\u6307\u5b9a\u7684\u7cbe\u5ea6\u3002\u5b83\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
round(number, ndigits)<\/p>\n
<\/code><\/pre>\n<\/p>\n
    \n
  • number<\/code>\uff1a\u8981\u56db\u820d\u4e94\u5165\u7684\u6570\u5b57\u3002<\/li>\n
  • ndigits<\/code>\uff1a\u8981\u4fdd\u7559\u7684\u5c0f\u6570\u4f4d\u6570\u3002<\/li>\n<\/ul>\n
    \u4e3e\u4f8b\u6765\u8bf4\uff1a<\/p>\n<\/p>\n
    number = 12.34567<\/p>\n
    rounded_number = round(number, 3)<\/p>\n
    print(rounded_number)  # \u8f93\u51fa\uff1a12.346<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cround()<\/code>\u51fd\u6570\u5c06\u6570\u5b5712.34567<\/code>\u56db\u820d\u4e94\u5165\u5230\u5c0f\u6570\u70b9\u540e3\u4f4d\uff0c\u7ed3\u679c\u662f12.346<\/code>\u3002<\/p>\n<\/p>\n
    \u4e8c\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h3>\n<\/p>\n
    Python \u63d0\u4f9b\u4e86\u51e0\u79cd\u65b9\u6cd5\u6765\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff0c\u5176\u4e2d\u4e00\u79cd\u662f\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8bed\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u63a7\u5236\u5c0f\u6570\u4f4d\u6570\uff0c\u8fd8\u53ef\u4ee5\u63a7\u5236\u8f93\u51fa\u7684\u683c\u5f0f\u3002\u5e38\u89c1\u7684\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<\/p>\n
    1. \u4f7f\u7528\u767e\u5206\u53f7\u683c\u5f0f\u5316<\/h4>\n<\/p>\n
    number = 12.34567<\/p>\n
    formatted_number = "%.2f" % number<\/p>\n
    print(formatted_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c%.2f<\/code>\u6307\u5b9a\u4e86\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\u3002<\/p>\n<\/p>\n
    2. \u4f7f\u7528str.format()\u65b9\u6cd5<\/h4>\n<\/p>\n
    number = 12.34567<\/p>\n
    formatted_number = "{:.2f}".format(number)<\/p>\n
    print(formatted_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528{:.2f}<\/code>\u6765\u6307\u5b9a\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\u3002<\/p>\n<\/p>\n
    3. \u4f7f\u7528f-string\uff08Python 3.6\u53ca\u4ee5\u540e\u7248\u672c\uff09<\/h4>\n<\/p>\n
    number = 12.34567<\/p>\n
    formatted_number = f"{number:.2f}"<\/p>\n
    print(formatted_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    f-string\u662fPython 3.6\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u7684\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528{number:.2f}<\/code>\u6765\u6307\u5b9a\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\u3002<\/p>\n<\/p>\n
    \u4e09\u3001\u4f7f\u7528Decimal\u7c7b<\/h3>\n<\/p>\n
    \u5982\u679c\u9700\u8981\u8fdb\u884c\u9ad8\u7cbe\u5ea6\u7684\u6d6e\u70b9\u6570\u8fd0\u7b97\uff0c\u5efa\u8bae\u4f7f\u7528decimal<\/code>\u6a21\u5757\u7684Decimal<\/code>\u7c7b\u3002Decimal<\/code>\u7c7b\u63d0\u4f9b\u4e86\u6bd4\u6d6e\u70b9\u6570\u66f4\u9ad8\u7684\u7cbe\u5ea6\u548c\u66f4\u7a33\u5b9a\u7684\u56db\u820d\u4e94\u5165\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
    from decimal import Decimal, ROUND_HALF_UP<\/p>\n
    number = Decimal("12.34567")<\/p>\n
    rounded_number = number.quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)<\/p>\n
    print(rounded_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cDecimal<\/code>\u7c7b\u63d0\u4f9b\u4e86\u9ad8\u7cbe\u5ea6\u7684\u6d6e\u70b9\u6570\u8fd0\u7b97\uff0cquantize()<\/code>\u65b9\u6cd5\u7528\u4e8e\u6307\u5b9a\u4fdd\u7559\u7684\u5c0f\u6570\u4f4d\u6570\uff0c\u5e76\u4f7f\u7528ROUND_HALF_UP<\/code>\u8fdb\u884c\u56db\u820d\u4e94\u5165\u3002<\/p>\n<\/p>\n
    \u56db\u3001\u4f7f\u7528\u81ea\u5b9a\u4e49\u51fd\u6570<\/h3>\n<\/p>\n
    \u6709\u65f6\u53ef\u80fd\u9700\u8981\u81ea\u5b9a\u4e49\u56db\u820d\u4e94\u5165\u7684\u903b\u8f91\uff0c\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u51fd\u6570\u6765\u5b9e\u73b0\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u8c03\u6574\u56db\u820d\u4e94\u5165\u7684\u89c4\u5219\u3002<\/p>\n<\/p>\n
    def custom_round(number, ndigits):<\/p>\n
        factor = 10  ndigits<\/p>\n
        return int(number * factor + 0.5) \/ factor<\/p>\n
    number = 12.34567<\/p>\n
    rounded_number = custom_round(number, 2)<\/p>\n
    print(rounded_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u901a\u8fc7\u5c06\u6570\u5b57\u4e58\u4ee5\u4e00\u4e2a\u56e0\u5b50\u3001\u52a0\u4e0a0.5\u5e76\u622a\u65ad\u5c0f\u6570\u90e8\u5206\u6765\u5b9e\u73b0\u56db\u820d\u4e94\u5165\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\uff0c\u53ef\u4ee5\u8c03\u6574\u52a00.5\u7684\u903b\u8f91\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u56db\u820d\u4e94\u5165\u89c4\u5219\u3002<\/p>\n<\/p>\n
    \u4e94\u3001\u4f7f\u7528numpy\u5e93<\/h3>\n<\/p>\n
    \u5bf9\u4e8e\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5904\u7406\uff0cnumpy<\/code>\u5e93\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u7ec4\u64cd\u4f5c\u529f\u80fd\uff0c\u5e76\u4e14\u4e5f\u652f\u6301\u56db\u820d\u4e94\u5165\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
    import numpy as np<\/p>\n
    number = np.array([12.34567])<\/p>\n
    rounded_number = np.around(number, 2)<\/p>\n
    print(rounded_number)  # \u8f93\u51fa\uff1a[12.35]<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    numpy<\/code>\u5e93\u7684around()<\/code>\u51fd\u6570\u53ef\u4ee5\u5c06\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u56db\u820d\u4e94\u5165\u5230\u6307\u5b9a\u7684\u5c0f\u6570\u4f4d\u6570\u3002\u5bf9\u4e8e\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u636e\u7684\u60c5\u51b5\uff0cnumpy<\/code>\u5e93\u662f\u4e00\u4e2a\u9ad8\u6548\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
    \u516d\u3001\u4f7f\u7528pandas\u5e93<\/h3>\n<\/p>\n
    \u5728\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u4e2d\uff0cpandas<\/code>\u5e93\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u7528\u7684\u5de5\u5177\u3002pandas<\/code>\u5e93\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u65b9\u6cd5\u6765\u5904\u7406\u6570\u636e\u5e27\u4e2d\u7684\u5c0f\u6570\u4f4d\u6570\u3002<\/p>\n<\/p>\n
    import pandas as pd<\/p>\n
    data = {'number': [12.34567, 45.67891, 78.91011]}<\/p>\n
    df = pd.DataFrame(data)<\/p>\n
    df['rounded_number'] = df['number'].round(2)<\/p>\n
    print(df)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cround()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u636e\u5e27\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u56db\u820d\u4e94\u5165\u5230\u6307\u5b9a\u7684\u5c0f\u6570\u4f4d\u6570\u3002<\/p>\n<\/p>\n
    \u4e03\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5e93<\/h3>\n<\/p>\n
    Python\u4e2d\u6709\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5e93\u4e13\u95e8\u7528\u4e8e\u683c\u5f0f\u5316\u6570\u5b57\u3002\u4f8b\u5982\uff0cformat<\/code>\u5e93\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u683c\u5f0f\u5316\u529f\u80fd\uff0c\u53ef\u4ee5\u5904\u7406\u590d\u6742\u7684\u683c\u5f0f\u5316\u8981\u6c42\u3002<\/p>\n<\/p>\n
    from format import Format<\/p>\n
    number = 12.34567<\/p>\n
    formatter = Format("{:.2f}")<\/p>\n
    formatted_number = formatter.format(number)<\/p>\n
    print(formatted_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528Format<\/code>\u7c7b\u6765\u683c\u5f0f\u5316\u6570\u5b57\uff0c\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u683c\u5f0f\u5316\u9009\u9879\u3002<\/p>\n<\/p>\n
    \u516b\u3001\u4f7f\u7528\u81ea\u5b9a\u4e49\u7c7b<\/h3>\n<\/p>\n
    \u5bf9\u4e8e\u9700\u8981\u9891\u7e41\u5904\u7406\u5c0f\u6570\u4f4d\u6570\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7c7b\u6765\u5c01\u88c5\u76f8\u5173\u903b\u8f91\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n
    class NumberFormatter:<\/p>\n
        def __init__(self, number):<\/p>\n
            self.number = number<\/p>\n
        def round(self, ndigits):<\/p>\n
            return round(self.number, ndigits)<\/p>\n
        def format(self, ndigits):<\/p>\n
            return f"{self.number:.{ndigits}f}"<\/p>\n
    number = NumberFormatter(12.34567)<\/p>\n
    rounded_number = number.round(2)<\/p>\n
    formatted_number = number.format(2)<\/p>\n
    print(rounded_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    print(formatted_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u6cd5\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aNumberFormatter<\/code>\u7c7b\u6765\u5c01\u88c5\u5c0f\u6570\u4f4d\u6570\u5904\u7406\u7684\u903b\u8f91\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u7ed3\u6784\u6027\u548c\u53ef\u590d\u7528\u6027\u3002<\/p>\n<\/p>\n
    \u4e5d\u3001\u4f7f\u7528math\u5e93<\/h3>\n<\/p>\n
    math<\/code>\u5e93\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6570\u5b66\u51fd\u6570\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u5904\u7406\u5c0f\u6570\u4f4d\u6570\u3002\u4f8b\u5982\uff0cmath.ceil()<\/code>\u548cmath.floor()<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u5411\u4e0a\u548c\u5411\u4e0b\u53d6\u6574\u3002<\/p>\n<\/p>\n
    import math<\/p>\n
    number = 12.34567<\/p>\n
    ceiled_number = math.ceil(number * 100) \/ 100<\/p>\n
    floored_number = math.floor(number * 100) \/ 100<\/p>\n
    print(ceiled_number)  # \u8f93\u51fa\uff1a12.35<\/p>\n
    print(floored_number)  # \u8f93\u51fa\uff1a12.34<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cmath.ceil()<\/code>\u548cmath.floor()<\/code>\u51fd\u6570\u7528\u4e8e\u5411\u4e0a\u548c\u5411\u4e0b\u53d6\u6574\uff0c\u5206\u522b\u5f97\u5230\u4e0d\u540c\u7684\u7ed3\u679c\u3002<\/p>\n<\/p>\n
    \u5341\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
    \u5728Python\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u5c0f\u6570\u4f4d\u6570\u7684\u5904\u7406\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\uff0c\u53ef\u4ee5\u9009\u62e9\u5185\u7f6e\u51fd\u6570round()<\/code>\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001Decimal<\/code>\u7c7b\u3001\u81ea\u5b9a\u4e49\u51fd\u6570\u3001numpy<\/code>\u5e93\u3001pandas<\/code>\u5e93\u3001\u683c\u5f0f\u5316\u5e93\u3001\u81ea\u5b9a\u4e49\u7c7b\u6216math<\/code>\u5e93\u7b49\u65b9\u6cd5\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u5e76\u6ee1\u8db3\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u5c0f\u6570\u4f4d\u6570\u5904\u7406\u9700\u6c42\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u5728Python\u4e2d\u63a7\u5236\u5c0f\u6570\u7684\u663e\u793a\u7cbe\u5ea6\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684round()<\/code>\u51fd\u6570\u6765\u63a7\u5236\u5c0f\u6570\u7684\u663e\u793a\u4f4d\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u662f\u8981\u56db\u820d\u4e94\u5165\u7684\u6570\u5b57\uff0c\u7b2c\u4e8c\u4e2a\u662f\u8981\u4fdd\u7559\u7684\u5c0f\u6570\u4f4d\u6570\u3002\u4f8b\u5982\uff0cround(3.14159, 2)<\/code>\u5c06\u8fd4\u56de3.14\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08\u5982f-string<\/code>\uff09\u6765\u6307\u5b9a\u5c0f\u6570\u4f4d\u6570\uff0c\u4f8b\u5982f"{value:.2f}"<\/code>\uff0c\u8fd9\u5c06\u628a\u53d8\u91cfvalue<\/code>\u683c\u5f0f\u5316\u4e3a\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
    \u5728Python\u4e2d\u5982\u4f55\u5c06\u5c0f\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5e76\u6307\u5b9a\u5c0f\u6570\u4f4d\u6570\uff1f<\/strong>
    \u53ef\u4ee5\u4f7f\u7528format()<\/code>\u65b9\u6cd5\u6216f-string\u6765\u5c06\u5c0f\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5e76\u6307\u5b9a\u5c0f\u6570\u4f4d\u6570\u3002\u4f7f\u7528format()<\/code>\u65b9\u6cd5\u65f6\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a"{:.2f}".format(3.14159)<\/code>\uff0c\u8fd9\u5c06\u8f93\u51fa"3.14"\u3002\u4f7f\u7528f-string\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c\u7684\u8bed\u6cd5\uff1af"{3.14159:.2f}"<\/code>\uff0c\u540c\u6837\u4f1a\u5f97\u5230"3.14"\u3002\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u975e\u5e38\u9002\u5408\u5728\u8f93\u51fa\u65f6\u63a7\u5236\u5c0f\u6570\u7684\u663e\u793a\u3002<\/p>\n
    \u5728Python\u4e2d\u5982\u4f55\u5904\u7406\u5c0f\u6570\u7cbe\u5ea6\u95ee\u9898\uff1f<\/strong>
    \u5904\u7406\u5c0f\u6570\u7cbe\u5ea6\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528decimal<\/code>\u6a21\u5757\uff0c\u5b83\u63d0\u4f9b\u4e86\u5bf9\u6d6e\u70b9\u6570\u66f4\u7cbe\u786e\u7684\u63a7\u5236\u3002\u901a\u8fc7decimal.Decimal<\/code>\u7c7b\uff0c\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u6307\u5b9a\u7cbe\u5ea6\u7684\u5c0f\u6570\u5bf9\u8c61\u3002\u4f8b\u5982\uff0c\u4f7f\u7528from decimal import Decimal<\/code>\u5bfc\u5165\u540e\uff0c\u53ef\u4ee5\u521b\u5efa\u5c0f\u6570\u5bf9\u8c61Decimal('3.14159')<\/code>\uff0c\u5e76\u53ef\u4ee5\u4f7f\u7528quantize()<\/code>\u65b9\u6cd5\u6765\u6307\u5b9a\u663e\u793a\u7684\u7cbe\u5ea6\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u9ad8\u7cbe\u5ea6\u8ba1\u7b97\u7684\u8d22\u52a1\u5e94\u7528\u975e\u5e38\u6709\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u7ed9\u5c0f\u6570\u6307\u5b9a\u4f4d\u6570\u53ef\u4ee5\u901a\u8fc7\u51e0\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570round()\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3001De […]","protected":false},"author":3,"featured_media":1054436,"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\/1054431"}],"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=1054431"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1054431\/revisions"}],"predecessor-version":[{"id":1054439,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1054431\/revisions\/1054439"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1054436"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1054431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1054431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1054431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}