通过设计一个《学生成绩统计管理》，进一步熟悉C++中类的概念、类的封装、继承的实现方式。了解系统开发的需求分析、类层次设计、模块分解、编码测试、模块组装与整体调试的全过程，加深对C++的理解与Visual C++环境的使用：逐步熟悉程序设计的方法，并养成良好的编程习惯。-Through the design of a " student achievement statistics management,"　become more familiar with C++, the concept of classes, the class encapsulation, inheritance of implementation. Understanding of system development, needs analysis, class-level design, module decomposition, code testing, module assembly and commissioning of the entire process as a whole, to deepen the understanding of C++ and Visual C++ environment to use: become familiar with program design methods, and to develop good programming habits.