{"id":1011536,"date":"2024-12-27T11:30:45","date_gmt":"2024-12-27T03:30:45","guid":{"rendered":""},"modified":"2024-12-27T11:30:47","modified_gmt":"2024-12-27T03:30:47","slug":"python%e5%a6%82%e4%bd%95%e8%be%93%e5%87%ba%e5%88%86%e6%95%b0%e6%a0%bc%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1011536.html","title":{"rendered":"python\u5982\u4f55\u8f93\u51fa\u5206\u6570\u683c\u5f0f"},"content":{"rendered":"

\"python\u5982\u4f55\u8f93\u51fa\u5206\u6570\u683c\u5f0f\"<\/p>\n

Python\u4e2d\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528fractions<\/code>\u6a21\u5757\u3001sympy<\/code>\u5e93\u3001\u4ee5\u53ca\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6765\u8f93\u51fa\u5206\u6570\u683c\u5f0f\u3002<\/strong> fractions<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u7b80\u5355\u7684\u5206\u6570\u8868\u793a\u65b9\u6cd5\uff0c\u800csympy<\/code>\u5e93\u5219\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u7684\u6570\u5b66\u8ba1\u7b97\u548c\u8868\u793a\u529f\u80fd\u3002\u6b64\u5916\uff0c\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\u53ef\u4ee5\u5728\u4e0d\u4f7f\u7528\u989d\u5916\u5e93\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u57fa\u672c\u7684\u5206\u6570\u8f93\u51fa\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528FRACTIONS\u6a21\u5757<\/p>\n<\/p>\n

fractions<\/code>\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u4e13\u95e8\u7528\u4e8e\u8fdb\u884c\u6709\u7406\u6570\u8fd0\u7b97\u3002\u901a\u8fc7Fraction<\/code>\u7c7b\uff0c\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u5c06\u6d6e\u70b9\u6570\u6216\u6574\u6570\u8f6c\u6362\u4e3a\u5206\u6570\u683c\u5f0f\u3002<\/p>\n<\/p>\n

    \n
  1. \n

    \u5bfc\u5165fractions\u6a21\u5757<\/strong><\/p>\n<\/p>\n

    \u9996\u5148\u9700\u8981\u5bfc\u5165fractions<\/code>\u6a21\u5757\u3002\u4f7f\u7528Fraction<\/code>\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5206\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

    from fractions import Fraction<\/p>\n
    \u5c06\u5c0f\u6570\u8f6c\u6362\u4e3a\u5206\u6570<\/strong><\/h2>\n
    decimal_number = 0.75<\/p>\n
    fraction_number = Fraction(decimal_number)<\/p>\n
    print(fraction_number)  # \u8f93\u51fa\uff1a3\/4<\/p>\n
    \u5c06\u6574\u6570\u8f6c\u6362\u4e3a\u5206\u6570<\/strong><\/h2>\n
    integer_number = 5<\/p>\n
    fraction_integer = Fraction(integer_number)<\/p>\n
    print(fraction_integer)  # \u8f93\u51fa\uff1a5<\/p>\n
    <\/code><\/pre>\n<\/p>\n<\/li>\n
  2. \n
    \u901a\u8fc7\u5b57\u7b26\u4e32\u8f6c\u6362<\/strong><\/p>\n<\/p>\n
    \u8fd8\u53ef\u4ee5\u901a\u8fc7\u5b57\u7b26\u4e32\u76f4\u63a5\u521b\u5efa\u5206\u6570\uff0c\u8fd9\u5728\u9700\u8981\u8868\u793a\u7cbe\u786e\u503c\u65f6\u7279\u522b\u6709\u7528\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
    fraction_from_string = Fraction('1\/3')<\/p>\n
    print(fraction_from_string)  # \u8f93\u51fa\uff1a1\/3<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8be6\u7ec6\u63cf\u8ff0\uff1a<\/strong><\/p>\n<\/p>\n
    \u4f7f\u7528Fraction<\/code>\u7c7b\u53ef\u4ee5\u907f\u514d\u6d6e\u70b9\u6570\u4e0d\u7cbe\u786e\u7684\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u6d6e\u70b9\u65700.1<\/code>\u5728\u8ba1\u7b97\u673a\u4e2d\u5e76\u4e0d\u80fd\u7cbe\u786e\u8868\u793a\uff0c\u4f46\u901a\u8fc7Fraction('1\/10')<\/code>\u53ef\u4ee5\u5f97\u5230\u51c6\u786e\u7684\u5206\u6570\u8868\u793a\u3002Fraction<\/code>\u7c7b\u8fd8\u652f\u6301\u57fa\u672c\u7684\u7b97\u672f\u8fd0\u7b97\uff0c\u5982\u52a0\u3001\u51cf\u3001\u4e58\u3001\u9664\uff0c\u5e76\u4f1a\u81ea\u52a8\u5316\u7b80\u7ed3\u679c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
    result = Fraction(1, 3) + Fraction(1, 6)<\/p>\n
    print(result)  # \u8f93\u51fa\uff1a1\/2<\/p>\n
    <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ol>\n
    \u4e8c\u3001\u4f7f\u7528SYMPY\u5e93<\/p>\n<\/p>\n
    Sympy<\/code>\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u5b66\u5e93\uff0c\u652f\u6301\u7b26\u53f7\u8ba1\u7b97\u548c\u5206\u6570\u8fd0\u7b97\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u6570\u5b66\u8868\u8fbe\u5f0f\u548c\u5206\u6570\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
      \n
    1. \n
      \u5b89\u88c5\u548c\u5bfc\u5165Sympy<\/strong><\/p>\n<\/p>\n
      \u9996\u5148\u9700\u8981\u5b89\u88c5sympy<\/code>\u5e93\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n
      pip install sympy<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u7136\u540e\u5bfc\u5165Rational<\/code>\u7c7b\u6765\u8868\u793a\u5206\u6570\uff1a<\/p>\n<\/p>\n
      from sympy import Rational<\/p>\n
      \u521b\u5efa\u5206\u6570<\/strong><\/h2>\n
      fraction_sympy = Rational(1, 2)<\/p>\n
      print(fraction_sympy)  # \u8f93\u51fa\uff1a1\/2<\/p>\n
      <\/code><\/pre>\n<\/p>\n<\/li>\n
    2. \n
      \u7b26\u53f7\u8fd0\u7b97<\/strong><\/p>\n<\/p>\n
      Sympy<\/code>\u8fd8\u5141\u8bb8\u5b9a\u4e49\u7b26\u53f7\u53d8\u91cf\uff0c\u5e76\u8fdb\u884c\u5206\u6570\u8fd0\u7b97\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
      from sympy import symbols, Rational<\/p>\n
      x = symbols('x')<\/p>\n
      expr = Rational(1, 2) * x + Rational(1, 3)<\/p>\n
      print(expr)  # \u8f93\u51fa\uff1a(1\/2)*x + 1\/3<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u8be6\u7ec6\u63cf\u8ff0\uff1a<\/strong><\/p>\n<\/p>\n
      \u4f7f\u7528sympy<\/code>\u5e93\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u8fdb\u884c\u7b80\u5355\u7684\u5206\u6570\u8868\u793a\uff0c\u8fd8\u53ef\u4ee5\u8fdb\u884c\u7b26\u53f7\u4ee3\u6570\u8fd0\u7b97\u3002Rational<\/code>\u7c7b\u4e0eFraction<\/code>\u7c7b\u4f3c\uff0c\u4f46\u5b83\u96c6\u6210\u5728sympy<\/code>\u5e93\u4e2d\uff0c\u9002\u5408\u7528\u4e8e\u7b26\u53f7\u8fd0\u7b97\u3002\u5bf9\u4e8e\u590d\u6742\u7684\u6570\u5b66\u95ee\u9898\uff0c\u5982\u6c42\u89e3\u65b9\u7a0b\u3001\u79ef\u5206\u3001\u5fae\u5206\u7b49\uff0csympy<\/code>\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
      \u4e09\u3001\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n<\/p>\n
      \u5728\u4e0d\u4f9d\u8d56\u5916\u90e8\u5e93\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528Python\u7684\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u529f\u80fd\u6765\u8f93\u51fa\u7b80\u5355\u7684\u5206\u6570\u683c\u5f0f\u3002<\/p>\n<\/p>\n
        \n
      1. \n
        \u7b80\u5355\u5b57\u7b26\u4e32\u683c\u5f0f\u5316<\/strong><\/p>\n<\/p>\n
        \u901a\u8fc7\u5b57\u7b26\u4e32\u7684\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u6574\u6570\u8868\u793a\u4e3a\u5206\u6570\uff1a<\/p>\n<\/p>\n
        numerator = 3<\/p>\n
        denominator = 4<\/p>\n
        fraction_string = f"{numerator}\/{denominator}"<\/p>\n
        print(fraction_string)  # \u8f93\u51fa\uff1a3\/4<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      2. \n
        \u5904\u7406\u6d6e\u70b9\u6570<\/strong><\/p>\n<\/p>\n
        \u5982\u679c\u9700\u8981\u5c06\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u5206\u6570\u683c\u5f0f\uff0c\u53ef\u4ee5\u624b\u52a8\u8ba1\u7b97\u6700\u7b80\u5206\u6570\uff0c\u6216\u4f7f\u7528\u8fd1\u4f3c\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
        from math import gcd<\/p>\n
        def float_to_fraction(number, tolerance=1e-6):<\/p>\n
            numerator = 1<\/p>\n
            denominator = 1<\/p>\n
            error = abs(numerator\/denominator - number)<\/p>\n
            while error > tolerance:<\/p>\n
                if numerator\/denominator < number:<\/p>\n
                    numerator += 1<\/p>\n
                else:<\/p>\n
                    denominator += 1<\/p>\n
                error = abs(numerator\/denominator - number)<\/p>\n
            common_divisor = gcd(numerator, denominator)<\/p>\n
            return f"{numerator \/\/ common_divisor}\/{denominator \/\/ common_divisor}"<\/p>\n
        print(float_to_fraction(0.75))  # \u8f93\u51fa\uff1a3\/4<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u8be6\u7ec6\u63cf\u8ff0\uff1a<\/strong><\/p>\n<\/p>\n
        \u901a\u8fc7\u624b\u52a8\u8ba1\u7b97\u6216\u7f16\u5199\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u6d6e\u70b9\u6570\u8fd1\u4f3c\u4e3a\u5206\u6570\u683c\u5f0f\uff0c\u8fd9\u5728\u5904\u7406\u7b80\u5355\u7684\u79d1\u5b66\u8ba1\u7b97\u65f6\u5f88\u6709\u7528\u3002\u867d\u7136\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u5982\u4f7f\u7528\u5e93\u90a3\u4e48\u7cbe\u786e\u548c\u65b9\u4fbf\uff0c\u4f46\u5bf9\u4e8e\u7b80\u5355\u7684\u573a\u5408\u8db3\u591f\u5b9e\u7528\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
        \u56db\u3001\u603b\u7ed3<\/p>\n<\/p>\n
        \u5728Python\u4e2d\uff0c\u8f93\u51fa\u5206\u6570\u683c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff0c\u5305\u62ec\u4f7f\u7528\u6807\u51c6\u5e93fractions<\/code>\u3001\u9ad8\u7ea7\u6570\u5b66\u5e93sympy<\/code>\u4ee5\u53ca\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\uff0c\u53ef\u4ee5\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0cfractions<\/code>\u6a21\u5757\u9002\u5408\u57fa\u672c\u7684\u5206\u6570\u8fd0\u7b97\uff0csympy<\/code>\u9002\u5408\u590d\u6742\u7684\u6570\u5b66\u8868\u8fbe\u5f0f\u548c\u7b26\u53f7\u8ba1\u7b97\uff0c\u800c\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65b9\u6cd5\u9002\u5408\u8f7b\u91cf\u7ea7\u5e94\u7528\u3002\u8fd9\u4e9b\u65b9\u6cd5\u7ed3\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u5728Python\u4e2d\u6709\u6548\u5730\u5904\u7406\u5404\u79cd\u5206\u6570\u76f8\u5173\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n
        \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
         \u5982\u4f55\u5728Python\u4e2d\u683c\u5f0f\u5316\u8f93\u51fa\u5206\u6570\uff1f<\/strong>
        \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528fractions<\/code>\u6a21\u5757\u6765\u5904\u7406\u5206\u6570\uff0c\u5e76\u53ef\u4ee5\u5229\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u529f\u80fd\u6765\u8f93\u51fa\u5206\u6570\u683c\u5f0f\u3002\u901a\u8fc7Fraction<\/code>\u7c7b\uff0c\u53ef\u4ee5\u8f7b\u677e\u521b\u5efa\u5206\u6570\u5bf9\u8c61\uff0c\u5e76\u4f7f\u7528print()<\/code>\u51fd\u6570\u5c06\u5176\u4ee5\u5206\u6570\u7684\u5f62\u5f0f\u8f93\u51fa\u3002\u4f8b\u5982\uff1a  <\/p>\n
        from fractions import Fraction\n\nfrac = Fraction(1, 3)\nprint(f"\u5206\u6570\u683c\u5f0f: {frac}")\n<\/code><\/pre>\n
        \u8fd9\u5c06\u8f93\u51fa\uff1a\u5206\u6570\u683c\u5f0f: 1\/3<\/code>\u3002<\/p>\n
        Python\u4e2d\u662f\u5426\u6709\u5e93\u53ef\u4ee5\u7b80\u5316\u5206\u6570\u7684\u64cd\u4f5c\uff1f<\/strong>
        \u662f\u7684\uff0cPython\u7684\u6807\u51c6\u5e93\u4e2d\u63d0\u4f9b\u4e86fractions<\/code>\u6a21\u5757\uff0c\u5b83\u5141\u8bb8\u7528\u6237\u521b\u5efa\u548c\u64cd\u4f5c\u5206\u6570\u3002\u8be5\u6a21\u5757\u652f\u6301\u57fa\u672c\u7684\u7b97\u672f\u8fd0\u7b97\u3001\u7b80\u5316\u5206\u6570\u7b49\u529f\u80fd\uff0c\u975e\u5e38\u9002\u5408\u5904\u7406\u5206\u6570\u76f8\u5173\u7684\u8ba1\u7b97\u548c\u8f93\u51fa\u3002\u53ea\u9700\u5bfc\u5165\u8be5\u6a21\u5757\uff0c\u5373\u53ef\u4f7f\u7528Fraction<\/code>\u7c7b\u6765\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\u3002<\/p>\n
        \u600e\u6837\u5728\u8f93\u51fa\u4e2d\u63a7\u5236\u5206\u6570\u7684\u5c0f\u6570\u4f4d\u6570\uff1f<\/strong>
        \u5982\u679c\u5e0c\u671b\u5c06\u5206\u6570\u8f6c\u6362\u4e3a\u5c0f\u6570\u5e76\u63a7\u5236\u5c0f\u6570\u4f4d\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7float()<\/code>\u51fd\u6570\u5c06\u5206\u6570\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570\uff0c\u7136\u540e\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u8fdb\u884c\u8f93\u51fa\u3002\u4f8b\u5982\uff1a  <\/p>\n
        frac = Fraction(1, 3)\ndecimal_value = float(frac)\nprint(f"\u5c0f\u6570\u683c\u5f0f: {decimal_value:.2f}")\n<\/code><\/pre>\n
        \u4ee5\u4e0a\u4ee3\u7801\u5c06\u8f93\u51fa\u5c0f\u6570\u5f62\u5f0f\uff0c\u63a7\u5236\u5230\u4e24\u4f4d\u5c0f\u6570\uff1a\u5c0f\u6570\u683c\u5f0f: 0.33<\/code>\u3002\u8fd9\u6837\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u7075\u6d3b\u8c03\u6574\u8f93\u51fa\u683c\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528fractions\u6a21\u5757\u3001sympy\u5e93\u3001\u4ee5\u53ca\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6765\u8f93\u51fa\u5206\u6570\u683c\u5f0f\u3002 fracti […]","protected":false},"author":3,"featured_media":1011540,"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\/1011536"}],"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=1011536"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1011536\/revisions"}],"predecessor-version":[{"id":1011543,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1011536\/revisions\/1011543"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1011540"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1011536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1011536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1011536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}