# -*- coding: utf-8 -*-

#coding=utf-8

'''

@author: tomcat

@license: (C) Copyright 2017-2019, Personal exclusive right.

@contact: liliang07@yungengxin.com

@software: coding

@file: decorator.py

@time: 2019/7/24 19:22

'''

'''

dict 字典参数

关键字参数在函数内部自动组装为一个dict

'''

def cal_num(**args):

    ax = 0

    for k,v in args.items():

        ax=ax+v

    print("kw=",args)

    return  ax

print(cal_num(num1=2,num3=5))

'''

tuple 参数,或者list参数

Python允许你在list或tuple前面加一个*号，把list或tuple的元素变成可变参数传进去：

'''

def cak_num1(*args):

    ax = 0

    for i in args:

        ax= ax+i

    print("kw=", args)

    return  ax

print(cak_num1(2,5))

list=[2,5]

print(cak_num1(*list))

tuple=(2,5)

print(cak_num1(*tuple))

'''

参数组合

在Python中定义函数，可以用必选参数、默认参数、可变参数、关键字参数和命名关键字参数，这5种参数都可以组合使用。但是请注意，参数定义的顺序必须是：必选参数、默认参数、可变参数、命名关键字参数和关键字参数。

比如定义一个函数，包含上述若干种参数：

'''

def f1(a, b, c=0, *args, **kw):

    print('a =', a, 'b =', b, 'c =', c, 'args =', args, 'kw =', kw)

def f2(a, b, c=0, *, d, **kw):

    print('a =', a, 'b =', b, 'c =', c, 'd =', d, 'kw =', kw)