1.程序结构比较简单，可做为初学者学习 2.功能是：统计一个文件的中文汉字覆盖率 3.用于统计汉字的使用频率等 4.vc开发环境 -1. Program structure is relatively simple, as a beginner can learn 2. Functions: statistical coverage of Chinese characters of a file 3. For the use of statistical character freq