回调函数示例，通过这段简单代码可以充分了解回调函数的基本作用-Example callback functions through a simple code this callback function can not fully understand the fundamental role of

這個功能指示在做DLL基本基礎練習沒有奇他特別的意義,到底到了二十個事沒阿-This feature indicates the fundamental basis of doing the DLL is not strange that he exercises a special significance, in the end to a twenty something no Arab