文本编辑器，统计字符个数,请封装一个类CText, 并编写一个软件，它可以完成对任意一个文本文件的字符统计工作-Text editor, the statistics of the number of characters, the package of a class CText, and write a software, it can complete the statistical work of any of the characters of a text file

从键盘输入一系列字符，以回车符结束，编程统计其中非数字字符的个数。-Enter the number of characters the keyboard, with a carriage return, the number of program statistics on non-numeric characters.