在实际写程序中,经常要对变量类型进行判断,除了用type(变量)这种方法外,还可以用isinstance方法判断:
#!/usr/bin/env python a = 1 b = [1,2,3,4] c = (1,2,3,4) d = {‘a‘:1,‘b‘:2,‘c‘:3} e = "abc" if isinstance(a,int): print "a is int" else: print "a is not int" if isinstance(b,list): print "b is list" else: print "b is not list" if isinstance(c,tuple): print "c is tuple" else: print "c is not tuple" if isinstance(d,dict): print "d is dict" else: print "d is not dict" if isinstance(e,str): print "d is str" else: print "d is not str"
时间: 2024-10-26 18:39:40