{"id":1176892,"date":"2025-01-15T17:50:38","date_gmt":"2025-01-15T09:50:38","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1176892.html"},"modified":"2025-01-15T17:50:41","modified_gmt":"2025-01-15T09:50:41","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%adx%e4%b8%8d%e6%98%af%e6%95%b0%e5%ad%97","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1176892.html","title":{"rendered":"python\u5982\u4f55\u5224\u65adx\u4e0d\u662f\u6570\u5b57"},"content":{"rendered":"

\"python\u5982\u4f55\u5224\u65adx\u4e0d\u662f\u6570\u5b57\"<\/p>\n

\u8981\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf x<\/code> \u4e0d\u662f\u6570\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 isinstance<\/code> \u51fd\u6570\u3001\u4f7f\u7528 try-except<\/code> \u8bed\u53e5\u3001\u4f7f\u7528 math.isnan<\/code> \u51fd\u6570\u3002<\/strong> \u5176\u4e2d\uff0c\u4f7f\u7528 isinstance<\/code> \u51fd\u6570<\/strong> \u662f\u4e00\u79cd\u975e\u5e38\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u6e05\u6670\u5730\u68c0\u67e5\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u5c5e\u4e8e\u67d0\u79cd\u7279\u5b9a\u7c7b\u578b\u3002\u6211\u4eec\u53ef\u4ee5\u5c55\u5f00\u63cf\u8ff0\u4e00\u4e0b\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f7f\u7528\u3002<\/p>\n<\/p>\n

\u5728 Python \u4e2d\uff0cisinstance<\/code> \u51fd\u6570\u7528\u4e8e\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u67d0\u4e2a\u7279\u5b9a\u7c7b\u7684\u5b9e\u4f8b\u3002\u5bf9\u4e8e\u6570\u5b57\u7684\u5224\u65ad\uff0c\u53ef\u4ee5\u4f7f\u7528 isinstance(x, (int, float, complex))<\/code> \u6765\u68c0\u67e5\u53d8\u91cf x<\/code> \u662f\u5426\u4e3a\u6574\u6570\u3001\u6d6e\u70b9\u6570\u6216\u590d\u6570\u3002\u5982\u679c x<\/code> \u4e0d\u662f\u8fd9\u4e9b\u7c7b\u578b\u4e2d\u7684\u4efb\u4f55\u4e00\u79cd\uff0c\u90a3\u4e48\u5b83\u5c31\u4e0d\u662f\u4e00\u4e2a\u6570\u5b57\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n

def is_not_number(x):<\/p>\n
    return not isinstance(x, (int, float, complex))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
print(is_not_number(10))  # False<\/p>\n
print(is_not_number(10.5))  # False<\/p>\n
print(is_not_number("hello"))  # True<\/p>\n
print(is_not_number([1, 2, 3]))  # True<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u9ad8\u6548\u5730\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\uff0c\u5e76\u4e14\u4ee3\u7801\u7b80\u6d01\u6613\u8bfb\u3002<\/p>\n<\/p>\n
\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u66f4\u591a\u7684\u65b9\u6cd5\u4ee5\u53ca\u5982\u4f55\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u4f7f\u7528 isinstance<\/code> \u51fd\u6570<\/h3>\n<\/p>\n
isinstance<\/code> \u51fd\u6570\u662f Python \u4e2d\u7528\u4e8e\u7c7b\u578b\u68c0\u67e5\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u5c5e\u4e8e\u67d0\u4e2a\u7279\u5b9a\u7684\u7c7b\u6216\u6570\u636e\u7c7b\u578b\u3002\u5bf9\u4e8e\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u68c0\u67e5\u5b83\u662f\u5426\u662f int<\/code>\u3001float<\/code> \u6216 complex<\/code> \u7c7b\u578b\u4e2d\u7684\u4e00\u79cd\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
def is_not_number(x):<\/p>\n
    return not isinstance(x, (int, float, complex))<\/p>\n
\u793a\u4f8b<\/strong><\/h2>\n
print(is_not_number(10))  # False<\/p>\n
print(is_not_number(10.5))  # False<\/p>\n
print(is_not_number("hello"))  # True<\/p>\n
print(is_not_number([1, 2, 3]))  # True<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f18\u70b9<\/h4>\n<\/p>\n
    \n
  • \u7b80\u6d01\u6613\u8bfb<\/strong>\uff1a\u4ee3\u7801\u7b80\u6d01\uff0c\u6613\u4e8e\u7406\u89e3\u3002<\/li>\n
  • \u9ad8\u6548<\/strong>\uff1aisinstance<\/code> \u51fd\u6570\u7684\u6027\u80fd\u8f83\u9ad8\uff0c\u9002\u5408\u5feb\u901f\u5224\u65ad\u7c7b\u578b\u3002<\/li>\n<\/ul>\n
    \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
      \n
    • \u7c7b\u578b\u8303\u56f4<\/strong>\uff1aisinstance<\/code> \u4ec5\u80fd\u5224\u65ad int<\/code>\u3001float<\/code> \u548c complex<\/code> \u7c7b\u578b\uff0c\u65e0\u6cd5\u5224\u65ad\u81ea\u5b9a\u4e49\u7684\u6570\u5b57\u7c7b\u578b\u3002<\/li>\n
    • Python\u7248\u672c<\/strong>\uff1a\u786e\u4fdd\u4f7f\u7528\u7684 Python \u7248\u672c\u652f\u6301 isinstance<\/code> \u51fd\u6570\uff08\u6240\u6709\u7248\u672c\u90fd\u652f\u6301\uff09\u3002<\/li>\n<\/ul>\n
      \u4e8c\u3001\u4f7f\u7528 try-except<\/code> \u8bed\u53e5<\/h3>\n<\/p>\n
      \u5728\u4e00\u4e9b\u590d\u6742\u7684\u573a\u666f\u4e2d\uff0c\u76f4\u63a5\u4f7f\u7528\u7c7b\u578b\u68c0\u67e5\u53ef\u80fd\u65e0\u6cd5\u6ee1\u8db3\u9700\u6c42\u3002\u6b64\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 try-except<\/code> \u8bed\u53e5\u6765\u6355\u83b7\u7c7b\u578b\u8f6c\u6362\u65f6\u53ef\u80fd\u51fa\u73b0\u7684\u9519\u8bef\uff0c\u4ece\u800c\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\u3002<\/p>\n<\/p>\n
      \u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
      def is_not_number(x):<\/p>\n
          try:<\/p>\n
              float(x)<\/p>\n
              return False<\/p>\n
          except (ValueError, TypeError):<\/p>\n
              return True<\/p>\n
      \u793a\u4f8b<\/strong><\/h2>\n
      print(is_not_number(10))  # False<\/p>\n
      print(is_not_number(10.5))  # False<\/p>\n
      print(is_not_number("hello"))  # True<\/p>\n
      print(is_not_number([1, 2, 3]))  # True<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4f18\u70b9<\/h4>\n<\/p>\n
        \n
      • \u9002\u7528\u8303\u56f4\u5e7f<\/strong>\uff1a\u4e0d\u4ec5\u53ef\u4ee5\u5224\u65ad\u57fa\u672c\u7c7b\u578b\uff0c\u8fd8\u53ef\u4ee5\u5224\u65ad\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684\u6570\u5b57\u3002<\/li>\n
      • \u7075\u6d3b\u6027\u5f3a<\/strong>\uff1a\u9002\u7528\u4e8e\u5404\u79cd\u590d\u6742\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<\/ul>\n
        \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
          \n
        • \u6027\u80fd<\/strong>\uff1a\u76f8\u6bd4\u4e8e isinstance<\/code>\uff0ctry-except<\/code> \u7684\u6027\u80fd\u53ef\u80fd\u7a0d\u4f4e\uff0c\u5c24\u5176\u662f\u5728\u5927\u91cf\u6570\u636e\u9700\u8981\u5224\u65ad\u65f6\u3002<\/li>\n
        • \u9519\u8bef\u7c7b\u578b<\/strong>\uff1a\u9700\u8981\u660e\u786e\u6355\u83b7 ValueError<\/code> \u548c TypeError<\/code>\uff0c\u4ee5\u907f\u514d\u5176\u4ed6\u610f\u5916\u9519\u8bef\u3002<\/li>\n<\/ul>\n
          \u4e09\u3001\u4f7f\u7528 math.isnan<\/code> \u51fd\u6570<\/h3>\n<\/p>\n
          \u5bf9\u4e8e\u6d6e\u70b9\u6570\u7c7b\u578b\u7684\u5224\u65ad\uff0c\u53ef\u4ee5\u4f7f\u7528 math.isnan<\/code> \u51fd\u6570\u6765\u68c0\u67e5\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a NaN\uff08Not a Number\uff09\u3002\u5c3d\u7ba1\u8fd9\u4e2a\u65b9\u6cd5\u4e3b\u8981\u7528\u4e8e\u6d6e\u70b9\u6570\u7684\u5224\u65ad\uff0c\u4f46\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u4e5f\u5f88\u5b9e\u7528\u3002<\/p>\n<\/p>\n
          \u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
          import math<\/p>\n
          def is_not_number(x):<\/p>\n
              if isinstance(x, float):<\/p>\n
                  return math.isnan(x)<\/p>\n
              return not isinstance(x, (int, complex))<\/p>\n
          \u793a\u4f8b<\/strong><\/h2>\n
          print(is_not_number(10))  # False<\/p>\n
          print(is_not_number(10.5))  # False<\/p>\n
          print(is_not_number(float('nan')))  # True<\/p>\n
          print(is_not_number("hello"))  # True<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4f18\u70b9<\/h4>\n<\/p>\n
            \n
          • \u4e13\u7528\u6027\u5f3a<\/strong>\uff1a\u4e13\u95e8\u7528\u4e8e\u5224\u65ad\u6d6e\u70b9\u6570\u662f\u5426\u4e3a NaN\u3002<\/li>\n
          • \u51c6\u786e\u6027\u9ad8<\/strong>\uff1a\u53ef\u4ee5\u51c6\u786e\u5224\u65ad\u6d6e\u70b9\u6570\u4e2d\u7684\u7279\u6b8a\u503c NaN\u3002<\/li>\n<\/ul>\n
            \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
              \n
            • \u9002\u7528\u8303\u56f4\u6709\u9650<\/strong>\uff1a\u4e3b\u8981\u7528\u4e8e\u6d6e\u70b9\u6570\u5224\u65ad\uff0c\u5bf9\u4e8e\u5176\u4ed6\u7c7b\u578b\u9700\u8981\u989d\u5916\u5224\u65ad\u3002<\/li>\n
            • \u4f9d\u8d56\u5e93<\/strong>\uff1a\u9700\u8981\u5bfc\u5165 math<\/code> \u5e93\u3002<\/li>\n<\/ul>\n
              \u56db\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/h3>\n<\/p>\n
              \u5728\u4e00\u4e9b\u7279\u5b9a\u573a\u666f\u4e2d\uff0c\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u5730\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u6570\u5b57\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6a21\u5f0f\u5339\u914d\u529f\u80fd\uff0c\u53ef\u4ee5\u7528\u6765\u9a8c\u8bc1\u5b57\u7b26\u4e32\u662f\u5426\u7b26\u5408\u6570\u5b57\u7684\u683c\u5f0f\u3002<\/p>\n<\/p>\n
              \u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
              import re<\/p>\n
              def is_not_number(x):<\/p>\n
                  if isinstance(x, str):<\/p>\n
                      return not bool(re.match(r'^-?\\d+(\\.\\d+)?$', x))<\/p>\n
                  return not isinstance(x, (int, float, complex))<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              print(is_not_number(10))  # False<\/p>\n
              print(is_not_number("10.5"))  # False<\/p>\n
              print(is_not_number("hello"))  # True<\/p>\n
              print(is_not_number([1, 2, 3]))  # True<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u4f18\u70b9<\/h4>\n<\/p>\n
                \n
              • \u7075\u6d3b\u6027\u5f3a<\/strong>\uff1a\u53ef\u4ee5\u9a8c\u8bc1\u5b57\u7b26\u4e32\u662f\u5426\u7b26\u5408\u6570\u5b57\u7684\u683c\u5f0f\u3002<\/li>\n
              • \u9002\u7528\u8303\u56f4\u5e7f<\/strong>\uff1a\u9002\u7528\u4e8e\u5404\u79cd\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684\u6570\u5b57\u5224\u65ad\u3002<\/li>\n<\/ul>\n
                \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
                  \n
                • \u590d\u6742\u5ea6<\/strong>\uff1a\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u8bed\u6cd5\u8f83\u4e3a\u590d\u6742\uff0c\u53ef\u80fd\u589e\u52a0\u4ee3\u7801\u7684\u590d\u6742\u5ea6\u3002<\/li>\n
                • \u6027\u80fd<\/strong>\uff1a\u5728\u5927\u91cf\u6570\u636e\u7684\u5224\u65ad\u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u6027\u80fd\u53ef\u80fd\u7a0d\u4f4e\u3002<\/li>\n<\/ul>\n
                  \u4e94\u3001\u4f7f\u7528 NumPy \u5e93<\/h3>\n<\/p>\n
                  \u5bf9\u4e8e\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5904\u7406\uff0cNumPy \u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u503c\u5904\u7406\u529f\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528 NumPy \u7684\u7c7b\u578b\u68c0\u67e5\u51fd\u6570\u6765\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\u3002<\/p>\n<\/p>\n
                  \u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
                  import numpy as np<\/p>\n
                  def is_not_number(x):<\/p>\n
                      return not (np.issubdtype(type(x), np.number))<\/p>\n
                  \u793a\u4f8b<\/strong><\/h2>\n
                  print(is_not_number(10))  # False<\/p>\n
                  print(is_not_number(10.5))  # False<\/p>\n
                  print(is_not_number(np.nan))  # False<\/p>\n
                  print(is_not_number("hello"))  # True<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u4f18\u70b9<\/h4>\n<\/p>\n
                    \n
                  • \u529f\u80fd\u5f3a\u5927<\/strong>\uff1aNumPy \u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u503c\u5904\u7406\u529f\u80fd\uff0c\u9002\u7528\u4e8e\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u3002<\/li>\n
                  • \u9002\u7528\u8303\u56f4\u5e7f<\/strong>\uff1a\u53ef\u4ee5\u5904\u7406\u5404\u79cd\u6570\u503c\u7c7b\u578b\uff0c\u5305\u62ec\u6d6e\u70b9\u6570\u3001\u6574\u6570\u548c\u590d\u6570\u3002<\/li>\n<\/ul>\n
                    \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
                      \n
                    • \u4f9d\u8d56\u5e93<\/strong>\uff1a\u9700\u8981\u5b89\u88c5\u548c\u5bfc\u5165 NumPy \u5e93\u3002<\/li>\n
                    • \u590d\u6742\u6027<\/strong>\uff1a\u5bf9\u4e8e\u7b80\u5355\u7684\u7c7b\u578b\u5224\u65ad\uff0c\u4f7f\u7528 NumPy \u53ef\u80fd\u663e\u5f97\u8fc7\u4e8e\u590d\u6742\u3002<\/li>\n<\/ul>\n
                      \u516d\u3001\u4f7f\u7528 pandas \u5e93<\/h3>\n<\/p>\n
                      \u5728\u6570\u636e\u5206\u6790\u4e2d\uff0cpandas \u5e93\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u7528\u7684\u5de5\u5177\u3002\u53ef\u4ee5\u4f7f\u7528 pandas \u63d0\u4f9b\u7684\u7c7b\u578b\u68c0\u67e5\u51fd\u6570\u6765\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\u3002<\/p>\n<\/p>\n
                      \u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
                      import pandas as pd<\/p>\n
                      def is_not_number(x):<\/p>\n
                          return not pd.api.types.is_numeric_dtype(type(x))<\/p>\n
                      \u793a\u4f8b<\/strong><\/h2>\n
                      print(is_not_number(10))  # False<\/p>\n
                      print(is_not_number(10.5))  # False<\/p>\n
                      print(is_not_number("hello"))  # True<\/p>\n
                      print(is_not_number([1, 2, 3]))  # True<\/p>\n
                      <\/code><\/pre>\n<\/p>\n
                      \u4f18\u70b9<\/h4>\n<\/p>\n
                        \n
                      • \u529f\u80fd\u5f3a\u5927<\/strong>\uff1apandas \u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\uff0c\u9002\u7528\u4e8e\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u3002<\/li>\n
                      • \u9002\u7528\u8303\u56f4\u5e7f<\/strong>\uff1a\u53ef\u4ee5\u5904\u7406\u5404\u79cd\u6570\u503c\u7c7b\u578b\uff0c\u5305\u62ec\u6d6e\u70b9\u6570\u3001\u6574\u6570\u548c\u590d\u6570\u3002<\/li>\n<\/ul>\n
                        \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
                          \n
                        • \u4f9d\u8d56\u5e93<\/strong>\uff1a\u9700\u8981\u5b89\u88c5\u548c\u5bfc\u5165 pandas \u5e93\u3002<\/li>\n
                        • \u590d\u6742\u6027<\/strong>\uff1a\u5bf9\u4e8e\u7b80\u5355\u7684\u7c7b\u578b\u5224\u65ad\uff0c\u4f7f\u7528 pandas \u53ef\u80fd\u663e\u5f97\u8fc7\u4e8e\u590d\u6742\u3002<\/li>\n<\/ul>\n
                          \u4e03\u3001\u4f7f\u7528\u81ea\u5b9a\u4e49\u51fd\u6570<\/h3>\n<\/p>\n
                          \u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u7f16\u5199\u81ea\u5b9a\u4e49\u7684\u5224\u65ad\u51fd\u6570\uff0c\u4ee5\u6ee1\u8db3\u66f4\u590d\u6742\u7684\u5224\u65ad\u903b\u8f91\u3002<\/p>\n<\/p>\n
                          \u793a\u4f8b\u4ee3\u7801<\/h4>\n<\/p>\n
                          def is_not_number(x):<\/p>\n
                              if isinstance(x, (int, float, complex)):<\/p>\n
                                  return False<\/p>\n
                              if isinstance(x, str):<\/p>\n
                                  try:<\/p>\n
                                      float(x)<\/p>\n
                                      return False<\/p>\n
                                  except ValueError:<\/p>\n
                                      return True<\/p>\n
                              return True<\/p>\n
                          \u793a\u4f8b<\/strong><\/h2>\n
                          print(is_not_number(10))  # False<\/p>\n
                          print(is_not_number("10.5"))  # False<\/p>\n
                          print(is_not_number("hello"))  # True<\/p>\n
                          print(is_not_number([1, 2, 3]))  # True<\/p>\n
                          <\/code><\/pre>\n<\/p>\n
                          \u4f18\u70b9<\/h4>\n<\/p>\n
                            \n
                          • \u7075\u6d3b\u6027\u5f3a<\/strong>\uff1a\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u7f16\u5199\u81ea\u5b9a\u4e49\u7684\u5224\u65ad\u903b\u8f91\u3002<\/li>\n
                          • \u9002\u7528\u8303\u56f4\u5e7f<\/strong>\uff1a\u53ef\u4ee5\u5904\u7406\u5404\u79cd\u590d\u6742\u7684\u5224\u65ad\u573a\u666f\u3002<\/li>\n<\/ul>\n
                            \u6ce8\u610f\u4e8b\u9879<\/h4>\n<\/p>\n
                              \n
                            • \u4ee3\u7801\u590d\u6742\u5ea6<\/strong>\uff1a\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u4ee3\u7801\u53ef\u80fd\u8f83\u4e3a\u590d\u6742\uff0c\u9700\u8981\u6ce8\u610f\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ul>\n
                              \u516b\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
                              \u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u5b57\u5728\u4e0d\u540c\u7684\u573a\u666f\u4e0b\u53ef\u4ee5\u91c7\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u4f7f\u7528 isinstance<\/code> \u51fd\u6570\u3001\u4f7f\u7528 try-except<\/code> \u8bed\u53e5\u3001\u4f7f\u7528 math.isnan<\/code> \u51fd\u6570\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u4f7f\u7528 NumPy \u5e93\u3001\u4f7f\u7528 pandas \u5e93\u3001\u4f7f\u7528\u81ea\u5b9a\u4e49\u51fd\u6570<\/strong> \u90fd\u662f\u5e38\u89c1\u7684\u65b9\u6cd5\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6027\u80fd\u3002<\/p>\n<\/p>\n
                                \n
                              • \u5bf9\u4e8e\u7b80\u5355\u7684\u7c7b\u578b\u5224\u65ad<\/strong>\uff0cisinstance<\/code> \u51fd\u6570\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\uff0c\u4ee3\u7801\u7b80\u6d01\u6613\u8bfb\u3002<\/li>\n
                              • \u5bf9\u4e8e\u590d\u6742\u7684\u7c7b\u578b\u5224\u65ad<\/strong>\uff0c\u53ef\u4ee5\u4f7f\u7528 try-except<\/code> \u8bed\u53e5\u6216\u8005\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u7075\u6d3b\u6027\u66f4\u5f3a\u3002<\/li>\n
                              • \u5728\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u4e2d<\/strong>\uff0cNumPy \u548c pandas \u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u503c\u5904\u7406\u529f\u80fd\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u6570\u636e\u5904\u7406\u573a\u666f\u3002<\/li>\n
                              • \u5728\u7279\u5b9a\u9700\u6c42\u4e0b<\/strong>\uff0c\u53ef\u4ee5\u7f16\u5199\u81ea\u5b9a\u4e49\u7684\u5224\u65ad\u51fd\u6570\uff0c\u4ee5\u6ee1\u8db3\u66f4\u590d\u6742\u7684\u5224\u65ad\u903b\u8f91\u3002<\/li>\n<\/ul>\n
                                \u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u8fdb\u884c\u6743\u8861\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u6548\u679c\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\u4e3a\u975e\u6570\u5b57\uff1f<\/strong>
                                \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528isinstance()<\/code>\u51fd\u6570\u7ed3\u5408str<\/code>\u548cint<\/code>\u3001float<\/code>\u7b49\u7c7b\u578b\u8fdb\u884c\u5224\u65ad\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7isinstance(x, (int, float))<\/code>\u6765\u5224\u65adx<\/code>\u662f\u5426\u4e3a\u6570\u5b57\u7c7b\u578b\u3002\u5982\u679c\u8fd4\u56deFalse\uff0c\u5219x<\/code>\u4e0d\u662f\u6570\u5b57\u3002\u6b64\u5916\uff0c\u4f7f\u7528try...except<\/code>\u7ed3\u6784\u8fdb\u884c\u5f02\u5e38\u5904\u7406\u4e5f\u662f\u4e00\u79cd\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u5c1d\u8bd5\u5c06\u53d8\u91cf\u8f6c\u6362\u4e3a\u6570\u5b57\uff0c\u5982\u679c\u629b\u51fa\u5f02\u5e38\uff0c\u5219\u8bf4\u660e\u8be5\u53d8\u91cf\u4e0d\u662f\u6570\u5b57\u3002<\/p>\n
                                Python\u4e2d\u5982\u4f55\u68c0\u6d4b\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u6570\u5b57\uff1f<\/strong>
                                \u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684isdigit()<\/code>\u65b9\u6cd5\u6765\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u53ea\u5305\u542b\u6570\u5b57\u3002\u4f8b\u5982\uff0cx.isdigit()<\/code>\u4f1a\u5728x<\/code>\u662f\u5b57\u7b26\u4e32\u4e14\u53ea\u5305\u542b\u6570\u5b57\u5b57\u7b26\u65f6\u8fd4\u56deTrue\u3002\u5982\u679c\u5b57\u7b26\u4e32\u5305\u542b\u5c0f\u6570\u70b9\u6216\u8d1f\u53f7\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u66f4\u590d\u6742\u7684\u5224\u65ad\u3002<\/p>\n
                                \u5728Python\u4e2d\u5982\u4f55\u5904\u7406\u5305\u542bNaN\u7684\u6570\u503c\uff1f<\/strong>
                                \u5982\u679c\u4f60\u5728\u5904\u7406\u6570\u636e\u65f6\u9047\u5230\u4e86NaN\uff08Not a Number\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528NumPy\u5e93\u7684isnan()<\/code>\u51fd\u6570\u6765\u68c0\u6d4b\u3002\u4f8b\u5982\uff0cnumpy.isnan(x)<\/code>\u53ef\u4ee5\u6709\u6548\u5224\u65adx<\/code>\u662f\u5426\u4e3aNaN\u3002\u540c\u65f6\uff0c\u4f7f\u7528pandas<\/code>\u5e93\u4e2d\u7684isnull()<\/code>\u51fd\u6570\u4e5f\u53ef\u4ee5\u5904\u7406\u6570\u636e\u6846\u4e2d\u7684NaN\u503c\uff0c\u8fd9\u5728\u6570\u636e\u5206\u6790\u4e2d\u975e\u5e38\u5e38\u89c1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf x \u4e0d\u662f\u6570\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 isinstance \u51fd\u6570\u3001\u4f7f\u7528 try-excep […]","protected":false},"author":3,"featured_media":1176900,"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\/1176892"}],"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=1176892"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1176892\/revisions"}],"predecessor-version":[{"id":1176901,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1176892\/revisions\/1176901"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1176900"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1176892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1176892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1176892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}