{"id":962894,"date":"2024-12-27T04:12:33","date_gmt":"2024-12-26T20:12:33","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/962894.html"},"modified":"2024-12-27T04:12:35","modified_gmt":"2024-12-26T20:12:35","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e6%95%b0%e5%ad%97%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/962894.html","title":{"rendered":"python\u5982\u4f55\u5224\u65ad\u6570\u5b57\u7c7b\u578b"},"content":{"rendered":"

\"python\u5982\u4f55\u5224\u65ad\u6570\u5b57\u7c7b\u578b\"<\/p>\n

\u5728Python\u4e2d\u5224\u65ad\u6570\u5b57\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5185\u7f6e\u51fd\u6570isinstance()<\/code>\u3001type()<\/code>\u3001\u4ee5\u53cais_integer()<\/code>\u3002<\/strong> isinstance()<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u7279\u5b9a\u7c7b\u578b\u7684\u5b9e\u4f8b\uff0ctype()<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u83b7\u53d6\u5bf9\u8c61\u7684\u7c7b\u578b\uff0c\u800cis_integer()<\/code>\u65b9\u6cd5\u5219\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2a\u6d6e\u70b9\u6570\u662f\u5426\u662f\u6574\u6570\u3002\u5176\u4e2d\uff0cisinstance()<\/code>\u65b9\u6cd5\u662f\u63a8\u8350\u7684\u65b9\u5f0f\uff0c\u56e0\u4e3a\u5b83\u652f\u6301\u7ee7\u627f\u5173\u7cfb\u3002<\/strong><\/p>\n<\/p>\n

\u4e3a\u4e86\u8be6\u7ec6\u63cf\u8ff0\u5176\u4e2d\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9isinstance()<\/code>\u65b9\u6cd5\u6765\u68c0\u67e5\u6570\u5b57\u7c7b\u578b\u3002isinstance()<\/code>\u4e0d\u4ec5\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2a\u6570\u5b57\u662f\u6574\u6570\uff08int<\/code>\uff09\u3001\u6d6e\u70b9\u6570\uff08float<\/code>\uff09\u8fd8\u662f\u590d\u6570\uff08complex<\/code>\uff09\uff0c\u8fd8\u53ef\u4ee5\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u591a\u4e2a\u7c7b\u578b\u4e2d\u7684\u4e00\u79cd\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff1aisinstance(10, int)<\/code>\u5c06\u8fd4\u56deTrue<\/code>\uff0c\u56e0\u4e3a10\u662f\u4e00\u4e2a\u6574\u6570\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u52a8\u6001\u5730\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u5b57\uff0c\u800c\u65e0\u9700\u5728\u7f16\u7801\u9636\u6bb5\u5c31\u51b3\u5b9a\u5176\u7c7b\u578b\u3002<\/p>\n<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8Python\u4e2d\u5224\u65ad\u6570\u5b57\u7c7b\u578b\u7684\u5404\u79cd\u65b9\u6cd5\u548c\u6280\u672f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528isinstance()<\/code>\u51fd\u6570\u5224\u65ad\u6570\u5b57\u7c7b\u578b<\/h3>\n<\/p>\n

isinstance()<\/code>\u51fd\u6570\u662fPython\u4e2d\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u5224\u65ad\u53d8\u91cf\u7684\u7c7b\u578b\u3002<\/p>\n<\/p>\n

1.1 \u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n

isinstance()<\/code>\u7684\u57fa\u672c\u7528\u6cd5\u662f\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u67d0\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u3002\u5b83\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n

isinstance(object, classinfo)<\/p>\n
<\/code><\/pre>\n<\/p>\n
    \n
  • object<\/code>\u662f\u9700\u8981\u68c0\u67e5\u7684\u5bf9\u8c61\u3002<\/li>\n
  • classinfo<\/code>\u53ef\u4ee5\u662f\u4e00\u4e2a\u7c7b\u578b\u6216\u7c7b\u578b\u7684\u5143\u7ec4\u3002<\/li>\n<\/ul>\n
    1.2 \u5224\u65ad\u6574\u6570\u7c7b\u578b<\/h4>\n<\/p>\n
    \u4e3a\u4e86\u5224\u65ad\u4e00\u4e2a\u6570\u5b57\u662f\u5426\u662f\u6574\u6570\u7c7b\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
    num = 42<\/p>\n
    print(isinstance(num, int))  # \u8f93\u51fa: True<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c42<\/code>\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u6240\u4ee5isinstance()<\/code>\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
    1.3 \u5224\u65ad\u6d6e\u70b9\u6570\u7c7b\u578b<\/h4>\n<\/p>\n
    \u7c7b\u4f3c\u5730\uff0c\u5224\u65ad\u4e00\u4e2a\u6570\u5b57\u662f\u5426\u662f\u6d6e\u70b9\u6570\u7c7b\u578b\uff1a<\/p>\n<\/p>\n
    num = 3.14<\/p>\n
    print(isinstance(num, float))  # \u8f93\u51fa: True<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u91cc\uff0c3.14<\/code>\u662f\u4e00\u4e2a\u6d6e\u70b9\u6570\uff0c\u56e0\u6b64isinstance()<\/code>\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
    1.4 \u5224\u65ad\u590d\u6570\u7c7b\u578b<\/h4>\n<\/p>\n
    \u5bf9\u4e8e\u590d\u6570\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
    num = 3 + 4j<\/p>\n
    print(isinstance(num, complex))  # \u8f93\u51fa: True<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u4e2a\u4f8b\u5b50\u4e2d\u76843 + 4j<\/code>\u662f\u4e00\u4e2a\u590d\u6570\u3002<\/p>\n<\/p>\n
    1.5 \u540c\u65f6\u68c0\u67e5\u591a\u4e2a\u7c7b\u578b<\/h4>\n<\/p>\n
    isinstance()<\/code>\u8fd8\u5141\u8bb8\u540c\u65f6\u68c0\u67e5\u591a\u4e2a\u7c7b\u578b\uff1a<\/p>\n<\/p>\n
    num = 3.14<\/p>\n
    print(isinstance(num, (int, float, complex)))  # \u8f93\u51fa: True<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c3.14<\/code>\u662f\u4e00\u4e2a\u6d6e\u70b9\u6570\uff0c\u5c5e\u4e8e\u68c0\u67e5\u7684\u7c7b\u578b\u4e4b\u4e00\uff0c\u56e0\u6b64\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
    \u4e8c\u3001\u4f7f\u7528type()<\/code>\u51fd\u6570\u5224\u65ad\u6570\u5b57\u7c7b\u578b<\/h3>\n<\/p>\n
    type()<\/code>\u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u5bf9\u8c61\u7684\u7c7b\u578b\u3002<\/p>\n<\/p>\n
    2.1 \u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n
    type()<\/code>\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
    type(object)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
      \n
    • object<\/code>\u662f\u9700\u8981\u68c0\u67e5\u7684\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n
      2.2 \u5224\u65ad\u6574\u6570\u7c7b\u578b<\/h4>\n<\/p>\n
      num = 42<\/p>\n
      print(type(num) is int)  # \u8f93\u51fa: True<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      type()<\/code>\u8fd4\u56deint<\/code>\uff0c\u6240\u4ee5\u5224\u65ad\u7ed3\u679c\u4e3aTrue<\/code>\u3002<\/p>\n<\/p>\n
      2.3 \u5224\u65ad\u6d6e\u70b9\u6570\u7c7b\u578b<\/h4>\n<\/p>\n
      num = 3.14<\/p>\n
      print(type(num) is float)  # \u8f93\u51fa: True<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      type()<\/code>\u8fd4\u56defloat<\/code>\uff0c\u56e0\u6b64\u5224\u65ad\u7ed3\u679c\u4e3aTrue<\/code>\u3002<\/p>\n<\/p>\n
      2.4 \u5224\u65ad\u590d\u6570\u7c7b\u578b<\/h4>\n<\/p>\n
      num = 3 + 4j<\/p>\n
      print(type(num) is complex)  # \u8f93\u51fa: True<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      type()<\/code>\u8fd4\u56decomplex<\/code>\uff0c\u6240\u4ee5\u5224\u65ad\u7ed3\u679c\u4e3aTrue<\/code>\u3002<\/p>\n<\/p>\n
      2.5 \u4f7f\u7528type()<\/code>\u4e0eisinstance()<\/code>\u7684\u533a\u522b<\/h4>\n<\/p>\n
      type()<\/code>\u4e0eisinstance()<\/code>\u7684\u4e00\u4e2a\u91cd\u8981\u533a\u522b\u662fisinstance()<\/code>\u8003\u8651\u7ee7\u627f\u5173\u7cfb\uff0c\u800ctype()<\/code>\u4e0d\u8003\u8651\u3002\u4f8b\u5982\uff0cbool<\/code>\u662fint<\/code>\u7684\u5b50\u7c7b\uff0c\u56e0\u6b64isinstance(True, int)<\/code>\u8fd4\u56deTrue<\/code>\uff0c\u800ctype(True) is int<\/code>\u8fd4\u56deFalse<\/code>\u3002<\/p>\n<\/p>\n
      \u4e09\u3001\u4f7f\u7528is_integer()<\/code>\u65b9\u6cd5\u5224\u65ad\u6d6e\u70b9\u6570\u662f\u5426\u4e3a\u6574\u6570<\/h3>\n<\/p>\n
      is_integer()<\/code>\u65b9\u6cd5\u662ffloat<\/code>\u7c7b\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u6d6e\u70b9\u6570\u662f\u5426\u4e3a\u6574\u6570\u3002<\/p>\n<\/p>\n
      3.1 \u57fa\u672c\u7528\u6cd5<\/h4>\n<\/p>\n
      num = 2.0<\/p>\n
      print(num.is_integer())  # \u8f93\u51fa: True<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c2.0<\/code>\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u56e0\u6b64is_integer()<\/code>\u8fd4\u56deTrue<\/code>\u3002<\/p>\n<\/p>\n
      3.2 \u975e\u6574\u6570\u6d6e\u70b9\u6570\u7684\u5224\u65ad<\/h4>\n<\/p>\n
      num = 3.14<\/p>\n
      print(num.is_integer())  # \u8f93\u51fa: False<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5728\u8fd9\u91cc\uff0c3.14<\/code>\u4e0d\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u6240\u4ee5is_integer()<\/code>\u8fd4\u56deFalse<\/code>\u3002<\/p>\n<\/p>\n
      \u56db\u3001\u7efc\u5408\u5e94\u7528\uff1a\u5224\u65ad\u548c\u5904\u7406\u4e0d\u540c\u7684\u6570\u5b57\u7c7b\u578b<\/h3>\n<\/p>\n
      \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u6839\u636e\u6570\u5b57\u7684\u7c7b\u578b\u6267\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002\u8fd9\u65f6\uff0c\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
      4.1 \u6839\u636e\u7c7b\u578b\u6267\u884c\u4e0d\u540c\u64cd\u4f5c<\/h4>\n<\/p>\n
      def process_number(num):<\/p>\n
          if isinstance(num, int):<\/p>\n
              print(f"{num} is an integer.")<\/p>\n
          elif isinstance(num, float):<\/p>\n
              if num.is_integer():<\/p>\n
                  print(f"{num} is a float but also an integer.")<\/p>\n
              else:<\/p>\n
                  print(f"{num} is a float.")<\/p>\n
          elif isinstance(num, complex):<\/p>\n
              print(f"{num} is a complex number.")<\/p>\n
          else:<\/p>\n
              print("Unknown type.")<\/p>\n
      process_number(10)<\/p>\n
      process_number(3.14)<\/p>\n
      process_number(2.0)<\/p>\n
      process_number(3 + 4j)<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      4.2 \u7c7b\u578b\u8f6c\u6362\u4e0e\u5224\u65ad<\/h4>\n<\/p>\n
      \u5728\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u5b57\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n<\/p>\n
      num = 2.0<\/p>\n
      \u5c06\u6d6e\u70b9\u6570\u8f6c\u6362\u4e3a\u6574\u6570<\/strong><\/h2>\n
      if num.is_integer():<\/p>\n
          num = int(num)<\/p>\n
          print(f"Converted to integer: {num}")<\/p>\n
      \u5c06\u6574\u6570\u8f6c\u6362\u4e3a\u6d6e\u70b9\u6570<\/strong><\/h2>\n
      num = 42<\/p>\n
      num = float(num)<\/p>\n
      print(f"Converted to float: {num}")<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e94\u3001\u8fdb\u4e00\u6b65\u63a2\u7d22\uff1aPython\u4e2d\u7684\u6570\u503c\u7c7b\u578b<\/h3>\n<\/p>\n
      \u9664\u4e86\u57fa\u672c\u7684\u6574\u6570\u3001\u6d6e\u70b9\u6570\u548c\u590d\u6570\uff0cPython\u4e2d\u8fd8\u6709\u5176\u4ed6\u7684\u6570\u503c\u7c7b\u578b\u53ef\u4ee5\u63a2\u7d22\u3002<\/p>\n<\/p>\n
      5.1 \u5e03\u5c14\u7c7b\u578b<\/h4>\n<\/p>\n
      \u5e03\u5c14\u7c7b\u578b\u662f\u6574\u6570\u7c7b\u578b\u7684\u5b50\u7c7b\uff0cTrue<\/code>\u548cFalse<\/code>\u5206\u522b\u5bf9\u5e94\u6574\u65701<\/code>\u548c0<\/code>\u3002<\/p>\n<\/p>\n
      print(isinstance(True, int))  # \u8f93\u51fa: True<\/p>\n
      print(type(True) is int)      # \u8f93\u51fa: False<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      5.2 \u957f\u6574\u578b<\/h4>\n<\/p>\n
      \u5728Python 3\u4e2d\uff0c\u6240\u6709\u7684\u6574\u6570\u7c7b\u578b\u90fd\u662f\u957f\u6574\u578b\uff0c\u5e76\u4e14\u53ef\u4ee5\u5904\u7406\u4efb\u610f\u5927\u5c0f\u7684\u6574\u6570\u3002<\/p>\n<\/p>\n
      5.3 \u5206\u6570\u4e0e\u5c0f\u6570<\/h4>\n<\/p>\n
      Python\u6807\u51c6\u5e93\u63d0\u4f9b\u4e86fractions<\/code>\u6a21\u5757\u7528\u4e8e\u5904\u7406\u5206\u6570\uff0c\u4ee5\u53cadecimal<\/code>\u6a21\u5757\u7528\u4e8e\u5904\u7406\u5c0f\u6570\u3002<\/p>\n<\/p>\n
      from fractions import Fraction<\/p>\n
      from decimal import Decimal<\/p>\n
      frac = Fraction(1, 3)<\/p>\n
      dec = Decimal('0.1')<\/p>\n
      print(frac)  # \u8f93\u51fa: 1\/3<\/p>\n
      print(dec)   # \u8f93\u51fa: 0.1<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u8fd9\u4e9b\u6a21\u5757\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7cbe\u5ea6\u7684\u6570\u503c\u8fd0\u7b97\uff0c\u7279\u522b\u9002\u7528\u4e8e\u91d1\u878d\u548c\u79d1\u5b66\u8ba1\u7b97\u9886\u57df\u3002<\/p>\n<\/p>\n
      \u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\u548c\u6280\u672f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Python\u4e2d\u6709\u6548\u5730\u5224\u65ad\u548c\u5904\u7406\u5404\u79cd\u6570\u5b57\u7c7b\u578b\uff0c\u4e3a\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u63d0\u4f9b\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
       \u5982\u4f55\u5728Python\u4e2d\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u662f\u6570\u5b57\u7c7b\u578b\uff1f<\/strong>
      \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u51fd\u6570isinstance()<\/code>\u6765\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u662f\u6570\u5b57\u7c7b\u578b\u3002\u5e38\u89c1\u7684\u6570\u5b57\u7c7b\u578b\u5305\u62ecint<\/code>\uff08\u6574\u6570\uff09\u548cfloat<\/code>\uff08\u6d6e\u70b9\u6570\uff09\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u6765\u5224\u65ad\uff1a  <\/p>\n
      x = 10\nif isinstance(x, (int, float)):\n    print("x\u662f\u6570\u5b57\u7c7b\u578b")\n<\/code><\/pre>\n
      \u8fd9\u6bb5\u4ee3\u7801\u4f1a\u68c0\u67e5\u53d8\u91cfx<\/code>\u662f\u5426\u662f\u6574\u6570\u6216\u6d6e\u70b9\u6570\uff0c\u5e76\u76f8\u5e94\u5730\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
      Python\u4e2d\u53ef\u4ee5\u5224\u65ad\u54ea\u4e9b\u6570\u5b57\u7c7b\u578b\uff1f<\/strong>
      Python\u4e3b\u8981\u652f\u6301\u51e0\u79cd\u6570\u5b57\u7c7b\u578b\uff0c\u5305\u62ecint<\/code>\uff08\u6574\u578b\uff09\u3001float<\/code>\uff08\u6d6e\u70b9\u578b\uff09\u548ccomplex<\/code>\uff08\u590d\u6570\u578b\uff09\u3002\u5728\u5224\u65ad\u6570\u5b57\u7c7b\u578b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528isinstance()<\/code>\u51fd\u6570\u7ed3\u5408(int, float, complex)<\/code>\u6765\u68c0\u67e5\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u5c5e\u4e8e\u8fd9\u4e9b\u7c7b\u578b\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
      y = 3.14\nif isinstance(y, (int, float, complex)):\n    print("y\u662f\u6570\u5b57\u7c7b\u578b")\n<\/code><\/pre>\n
      \u5982\u4f55\u5904\u7406\u7528\u6237\u8f93\u5165\u5e76\u5224\u65ad\u5176\u662f\u5426\u4e3a\u6570\u5b57\uff1f<\/strong>
      \u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528input()<\/code>\u51fd\u6570\u83b7\u53d6\u6570\u636e\uff0c\u5e76\u7ed3\u5408str.isdigit()<\/code>\u65b9\u6cd5\u6765\u5224\u65ad\u8f93\u5165\u662f\u5426\u4e3a\u6570\u5b57\u3002\u5982\u679c\u4f60\u9700\u8981\u5224\u65ad\u6d6e\u70b9\u6570\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u5c06\u8f93\u5165\u8f6c\u6362\u4e3afloat<\/code>\u7c7b\u578b\uff0c\u5e76\u6355\u83b7\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
      user_input = input("\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff1a")\ntry:\n    number = float(user_input)\n    print("\u8f93\u5165\u7684\u662f\u6570\u5b57")\nexcept ValueError:\n    print("\u8f93\u5165\u7684\u4e0d\u662f\u6570\u5b57")\n<\/code><\/pre>\n
      \u8fd9\u79cd\u65b9\u5f0f\u4e0d\u4ec5\u53ef\u4ee5\u5224\u65ad\u6574\u578b\uff0c\u4e5f\u80fd\u5904\u7406\u6d6e\u70b9\u578b\u8f93\u5165\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5224\u65ad\u6570\u5b57\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5185\u7f6e\u51fd\u6570isinstance()\u3001type()\u3001\u4ee5\u53cais_intege […]","protected":false},"author":3,"featured_media":962898,"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\/962894"}],"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=962894"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/962894\/revisions"}],"predecessor-version":[{"id":962899,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/962894\/revisions\/962899"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/962898"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=962894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=962894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=962894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}