python 函数的全局变量和局部变量

# 有局部变量
name = "laskas"
def test():
    name = "aele"
    print(name)
test()

# 无局部变量
name = "asd"
def test():
    print(name)
test()

# 有global关键字

name = "asas"
def test():
    global name
    name = "aele"
    print(name)
test()

# 无global关键字
name = "ale"
def test():
    name = "aele"
    print(name)
test()

# 可使用列表、字典的方法
a = [11,2,33]
def  test():
    a.append("123")
    print(a)
test()

# 位置参数
def tsta(x,y,z):
    print(x)
    print(y)
    print(z)
tsta(1,2,3)

# 关键字参数
def tsta(x,y,z):
    print(x)
    print(y)
    print(z)
tsta(x=1,y=2,z=3)

# 位置参数,关键字参数，位置参数一定要在关键字左边
def tsta(x,y,z):
    print(x)
    print(y)
    print(z)
tsta(1,2,3)

# *args列表  **kwargs 字典
def tsta(x,*args,**kwargs):
    print(x)
    print(args)
    print(kwargs)
tsta(1,*[2,2,3,4],**{"qwe":1})

# nonlocal，指定上一级变量，如果没有就继续往上直到找到为止
name = "alws"
def trst():
    name = "asda"
    def tre():
        nonlocal name
        name = "alede"
    print(name)
    tre()
    print(name)

trst()
print(name)