用c实现的行编辑器，运行环境为tc2.0，具体功能见设计说明书，基本实现了所有的行编辑功能，有问题可以和我联系：sunyu1949@sina.com-With c realize the line editor, run the environment tc2.0, specific features, see the design specification, the basic realization of all the line editing function, can have pr