这是一个封装得比较完整的串口类，支持同步、异步操作，使用简单高效，具有工业强度，我在BC, BCB, VC, BCBX, GCC下编译通过-This is a relatively complete package-type serial port to support synchronous, asynchronous operation, using a simple high-performance, industrial strength, in my BC, BCB, VC, BCBX

串口短信猫VC示例程序，通过动态库实现收短信、发短信、SIM状态、信号强度，简单实用。-Serial SMS modem VC sample program, achieved through dynamic libraries receive SMS, send text messages, SIM status, signal strength, simple and practical.