说明： DOS下的通讯录小程序，供学习参考
可以设置学号，电话，名字
使用后可以数寸成文件，以便随时查看
不支持中文 (Address book under the small DOS program for learning science can be set reference number, telephone, names can be used to document a few inches so that at any time to view does not support Chinese)
