自己编写的关于MFC的两个小案例，一个是魔方阵，另一个是字符数统计-I have written two small cases of MFC, is a magic square, the other is the character counts

该程序可用于统计输入字符串中字符,数字,标点符号以及其它符号的个数,(The program can be used for statistical input string of characters, Numbers, punctuation marks, and other symbols of number,)

统计文件中字符的个数和种类,分析,图形显示构造出哈夫曼树()