Python 判断类型

类型判断：isinstance(obj, type)

方法 ： isinstance(obj, type)
print (isinstance(3, int))  		 						# True
print (isinstance(3, str))  		 						# False
print (isinstance(3, list)) 		 						# False
print (isinstance([1,2,3], list))  							# True
print (isinstance(datetime.datetime.now(),datetime.date)) 	# True