Python *args **kwargs

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*args

星号 * 的参数 *args 会以元组的形式导入

def func(*args):
    for arg in args:
        print(arg)


func('a', 'b', 'c')

t = ('a', 'b', 'c')
func(t)

l = [1, 2, 3]
func(l)

Console Output

a
b
c
('a', 'b', 'c')
[1, 2, 3]

 

**kwargs

两个星号 ** 的参数 **kwargs 会以字典的形式导入

def func(**kargs):
    for key in kargs:
        print(key, kargs[key], type(kargs[key]))


func(k1='a', k2=[1, 2, 3], k3=(4, 5, 6))

Console Output

k1 a <class 'str'>
k2 [1, 2, 3] <class 'list'>
k3 (4, 5, 6) <class 'tuple'>

 

Reference

https://www.runoob.com/python3/python3-function.html

https://www.liaoxuefeng.com/wiki/1016959663602400/1017261630425888