python基础--函数

# 全局变量和局部变量名字相同
str = "aaa" # 定义了一个全局变量
def myPrint():
    #global str#：使用global对一个全局变量的声明
    str = "bbb"
    print(str)
    
myPrint() #结果：bbb
print(str) #结果：aaa

def myPrint(name,age = 10):
    print(name)
    print(age)
    
myPrint("zs",20)
myPrint("zs")
print("=" * 10)
myPrint(name = "zs",age = 30)
myPrint(name = "zs")

def myPrint(a,*params):
    print(a)
    print(params) # (10,20,30)
    
myPrint("zs",10,30)

def myPrint(a,**params):
    print(a)
    print(params)
    for i in params:
        print(i)
    
myPrint("zs",name=‘zs‘,age = 20)

def myPrint(a,*args,**params):
    print(a)
    print(args)
    print(params)
    
args = (1,2,3);
params = {‘name‘:‘zs‘,‘age‘:20};
myPrint("zs",**params)

打印结果：
zs
(1,3)
{‘name‘: ‘zs‘,‘age‘: 20}