短信收发程序，能从一个目录中固定格式的文本文件中读取出相应的信息，发送出去。-SMS transceiver procedures, from a directory fixed format text file to read out the corresponding information sent.

自己开发发的文本编辑器，文件较小。采用C#语言开发。-Development issued its own text editor, the file smaller. Using C# language development.