python 函数形式

1.func(x,y)

2.func(x="hello",y="world") #带默认参数

3.func(*x)#tuple

4.func(**x)#dict

#!/usr/bin/python 
def func_1(x,y):
    print x,y 
func_1("hello","python")


def func_2(x="hello",y="world"):
    print x,y 
func_2()


def func_3(*x):
    print x
func_3("hello","python")

def func_0(**x):
    print x
func_0(hello="hello",world="world")