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两个变量值互换。
无
#!/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)print 'x = %d,y = %d' % (x,y)
程序源代码:
#!/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)print 'x = %d,y = %d' % (x,y)
以上实例输出结果为:
x = 10,y = 20x = 20,y = 10
两个变量值互换。