*args 与**kwargs

Posted 2021-03-22 bigbox

l1 = [1,2,3,4]
t1 = (1,2,3,4)
d1 = {‘name‘:‘tank‘,‘age‘:73}
print(*l1)   打散列表     1 2 3 4 
print(*t1)   打散元组     1 2 3 4
print(*d1)   打散字典     name age  只能得到key
print(**d1)  #报错


def bar(*args, **kwargs):    # 这里只打散值
    print(args)    args      #元组(1, 2, 3)
    print(kwargs)  kwargs    # 字典 {‘d‘: 10, ‘e‘: 20, ‘f‘: 30}

bar(1, 2, 3, d=10, e=20, f=30)

1 2 3 4
1 2 3 4
name age
(1, 2, 3)
{‘d‘: 10, ‘e‘: 20, ‘f‘: 30}