global nonlocal 全局域变量与域间变量

test = 'hello'

def make_counter():
    count = 0
　　#声明变量为全局变量，需要使用global
    global test
    test = 'world'
    def counter():
　　　　　#声明变量为函数体内变量，需要使用count
        nonlocal count
        count += 1
        return count,test

    return counter


def make_counter_test():
    mc = make_counter()
    print(mc())
    print(mc())
    print(mc())


make_counter_test()

转载于:https://www.cnblogs.com/pslblog/p/10239045.html