两个变量值互换。

#!/usr/bin/python# -*- coding: UTF-8 -*-def exchange(a,b):a,b = b,areturn (a,b)if __name__ == '__main__':x = 10y = 20print 'x = %d,y = %d' % (x,y)x,y = exchange(x,y)

漁陽

722人浏览 · 2018-01-22 19:04:47

漁陽 · 2018-01-22 19:04:47 发布

#!/usr/bin/python
# -*- coding: UTF-8 -*-

def exchange(a,b):
    a,b = b,a
    return (a,b)

if __name__ == '__main__':
    x = 10
    y = 20
    print 'x = %d,y = %d' % (x,y)
    x,y = exchange(x,y)
    print 'x = %d,y = %d' % (x,y)

以上实例输出结果为：