闭包函数

def f1():
    x = 1
 
    def inner():
        print(x)
 
    return inner
 
func = f1()
x = 2
 
def f2():
    x = 3
    func()
 
f2()

1     

def outter():
    x = 1
 
    def inner():
        print(x)
    return inner
 
f = outter()
 
def f2():
    x = 2
    f()
 
f2()

1    

def outter(x):
    x = 1
 
    def inner():
        print(x)
 
    return inner
 
f = outter(6)
f()
f()
# 查看闭包的元素
print(f"f.__closure__[0].cell_contents:{f.__closure__[0].cell_contents}")

macname@MacdeMacBook-Pro py % python3 cccccc.py
1
1
f.__closure__[0].cell_contents:1
macname@MacdeMacBook-Pro py %