1. 

   100000why New Member

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   吉林大学elmo站的下载有这样一个提示
   http://www.elmo.net.cn/MathBM/info.asp?rno=4842
   

   请问，这是如何实现的？用户不用注册登陆也可以限制？

    

   #1 100000why, Jun 6, 2006

   Last edited: Jun 6, 2006
2. 

   小叶 New Member

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   记录session或cookie，或者是ip地址。

    

   #2 小叶, Jun 6, 2006
3. 

   sojay New Member

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   Dec 19, 2005

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   防君子的技量。。。

    

   #3 sojay, Jun 6, 2006

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