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求教php大神，这个应该怎么改啊，输入150号段，和140- 号段，输入会显示错误
- WBOYOriginal
- 2016-06-02 11:32:56795browse
php
图片说明](http://img.ask.csdn.net/upload/201503/13/1426215847_852129.png)图片说明](http://img.ask.csdn.net/upload/201503/13/1426215839_175696.png)
输入150号段，和140- 号段，输入会显示
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