这是一个简单的程序,使用文本文件作为一个datafile救了,删除与更新。在这个项目中你也可以登录,一旦你得到你就能做许多工作-This is a simple program which uses text files as a datafile for saving, deleting and updating. In this program you can also login and once you have access then you can do many tasks.