闭包

python学习笔记

闭包的两个例子

ex1：

def line_conf():
    def line(x):
        return x ** 2 + 1
    return line
my_line = line_conf()
print(my_line(5))
运行结果
26

list(map(lambda x: x ** 2 + 1, [5]))
运行结果
26

ex2:

def line_conf(a, b):
    def line(x):
        return a * x + b
    return line
line1 = line_conf(1, 1)
line2 = line_conf(4, 5)
print(line1(6), line2(6))
运行结果
7 29