风湿理论：函数即变量

　风是理论：函数就是变量

name = '海风'
def huangwei():
    name = '黄伟'
    print(name)
    def liuyang():
        name = '刘洋'
        print(name)

        def yangjing():
            name = '沪指花'
            print(name)
        print(name)
        yangjing()
    liuyang()
    print(name)
print(name)
huangwei()
print(name)
#输出结果：：海风   黄伟    刘洋    刘洋  炉之花    黄伟   海风