python 判断变量类型

使用  isinstance()函数，该函数有两个参数，第一个为填入的变量，第二个为类型（str，int，float，list，tuple，dict，set），返回值为布尔值

函数如下

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def typeof(variate):   type=None   if isinstance(variate,int):       type = "int"   elif isinstance(variate,str):       type = "str"   elif isinstance(variate,float):       type = "float"   elif isinstance(variate,list):       type = "list"   elif isinstance(variate,tuple):       type = "tuple"   elif isinstance(variate,dict):       type = "dict"   elif isinstance(variate,set):       type = "set"   return type