'''
概念：能处理比定义时更多的参数
'''

#加了星号(*)的变量存放所有未命名的变量参数，如果在函数调用时没有指定参数，它就是一个空元组
def func(name, *args):
    print(name)
    print(type(args))
    for x in args:
        print(x)

func("sunck", "good", "nice", "handsom")

def mySum(*l):
    sum = 0
    for i in l:
        sum += i
    return sum
print(mySum(1,2,3,4,5,6,7))

#**代表简键值对的参数字典，和*所代表的意义类似
def func2(**kwargs):
    print(kwargs)
    print(type(kwargs))

func2(x=1, y=2, z=3)

def func3(*args, **kwargs):
    pass #代表一个空语句