在我们实际用软件时，经常可看到许多动态连接库。动态连接库有其自身的优点如节省内存、支持多语种等功能，而且，当DLL中的函数改变后，只要不是参数的改变调用起的函数并不需要重新编译。-In our actual use of software, often can be seen in many dynamic link library. Dynamic Link Library has its own advantages, such as saving memory, support for features such as multi-lingual, but also, when the DLL