python中,在形参前面加上“*”与“”“**”,称为动态参数
加“*”时,函数可接受任意多个参数,全部放入一个元祖中
def F(*args): print(args) F(123,"456") # (123, '456')
加“**”时,函数接受参数时,返回为字典,需要写为如下形式:
def F(**kwargs): print(kwargs) F(k1=123,k2="456") # {'k1': 123, 'k2': '456'}
def F(p,*args,**kwargs): print(p) print(args) print(kwargs) F(11,"abc",[789],k1=123,k2="456") # 11 # ('abc', [789]) # {'k1': 123, 'k2': '456'}