The following code shows how to implement a simple hook function.
下列程序码显示如何实作一个简单的拦截函式。
This file supersedes the hook_help function, and the information can be removed from the hook function.
这个文件替代 hook_help函数，所以可以从钩子函数中删除帮助信息。
A hook procedure can call this function either before or after processing the hook information.
钩子子程能够在处理钩子信息之前或者之后调用该方法。
A hook procedure can call this function either before or after processing the hook information.
钩子子程能够在处理钩子信息之前或者之后调用该方法。
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