C#编写的短信猫工具，其中包括了一个非常完善的短信猫操作类，原始的AT命令封装，类中封装好了发送短信拨打电话获取短信等功能！非常值得一看！-Messages written in C# cat tools, including a very good message cat action class, the original AT command package, a class wrapper for sending SMS text messages and other functions

串口收发短信的代码，使用C#,串口类专门做了打包，方便扩展应用。应用于短信群发，SIM卡短信读取等方面-Serial code to send and receive text messages, using C#, the serial port class made ​ ​ a special package to facilitate the expansion of the application. Used SMS group sending, SIM card S