动态链接库程序的编写。静态库与动态库的区别，以及调用程序在链接静态库和动态库时的区别。如何利用工具查看动态链接库输出的函数，Depends工具的使用，C++编译器名字改编技术对动态链接库输出函数的影响，extern "C"的用法，利用模块定义文件来解决C++名字改编的问题。用typedef定义指向函数的指针类型，如何获得动态连接库里的函数的指针。-Procedures for the preparation of dynamic link library. Static libraries and dynamic libraries of distinction, and call the procedure in the static libraries and dynamic link library differences. How to use tools to view the dynamic link library output function, Depends the use of tools, C++ compiler name adaptation of technology for dynamic link library output function of, extern " C"　for use, use of the module definition file to resolve the C++ name of adaptation problems. Defined with typedef pointer to a function type, how to obtain the dynamic link library function of the pointer.