
# dir(__builtins__)   内建函数
'''
a = "hello"     # str
#assert a=='j'   #AssertionError  断言错误

a.xx()    #AttributeError   没有这个属性或者方法
'''


a = [1,2,3]
b = [4,5,6]
for i,j in zip(a,b):
    print(i,j)








