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
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