Python 练习实例43

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题目:模仿静态变量(static)另一案例。

程序分析:演示一个Python作用域使用方法

程序源代码:

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

class Num:
    nNum = 1
    def inc(self):
        self.nNum += 1
        print 'nNum = %d' % self.nNum

if __name__ == '__main__':
    nNum = 2
    inst = Num()
    for i in range(3):
        nNum += 1
        print 'The num = %d' % nNum
        inst.inc()

以上实例输出结果为:

 The num = 3 nNum = 2 The num = 4 nNum = 3 The num = 5 nNum = 4