Python 练习实例47
Python 100例题目：两个变量值互换。
程序分析：无
程序源代码：
#!/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：
x = 10,y = 20 x = 20,y = 10