00 函数可以做返回值–进行返回

函数可以做返回值–进行返回 视频p125

def func():
    print(123)

def bar():
    return func

v = bar() # 将func函数名进行, 此时v = func
v()

name = 'oldboy'
def func():
    print(name)
    
def bar():
    return func

v = bar()

v()

def bar():
    def inner():
        print(123)
    return inner
v = bar()
v()

name = 'oldboy'
def bar():
    name = 'alex'
    def inner():
        print(name)
    return inner
v = bar()
v()

name = 'oldboy'
def bar(name):
    def inner():
        print(name)
    return inner
v1 = bar('alex') # { name=alex, inner }  # 闭包，为函数创建一块区域（内部变量供自己使用），为他以后执行提供数据。
v2 = bar('eric') # { name=eric, inner }
v1()
v2()