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Python 练习实例47
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： 实例 [mycode4 type='python'] #!/usr/bin/python # -*- coding: UTF-8 -*- def exchange(a,b): a,b = b,a return (a,b) if __name__ == '__main__&#..
Updated 7/16/2026
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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：
实例
#!/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))
# -*- 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