# -*- coding: utf-8 -*-

#python 27

#xiaodeng

#python之函数用法isinstance()

#isinstance()

#说明：返回一个布尔值，判断数据类型

'''

isinstance(...)

    isinstance(object, class-or-type-or-tuple) -> bool

    object:一个对象

    class-or-type-or-tuple:类/基本类型/元组，可以只传一个数据类型，也可以同时传递多个数据类型

    bool：返回一个布尔值

    Return whether an object is an instance of a class or of a subclass thereof.

    With a type as second argument, return whether that is the object's type.

    The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for

    isinstance(x, A) or isinstance(x, B) or ... (etc.).

'''

#案例

object=range(5)#list

print isinstance(object,tuple)#False

print isinstance(object,list)#True

object='xiaodeng'

print isinstance(object,(str,int))#True；同时传递多个数据类型

print isinstance(object,(str,int,list))#True；同时传递多个数据类型