彩信收发程序，用c++实现，包括彩信解码和发送两部分-MMS sending and receiving process, using c++ implementation, including the decoding and send the two parts of MMS

彩信的编码解码源码,用C语言对彩信的pdu编码以及如何解码(MMS encoding and decoding source code, using C language to encode the pdu of MMS and how to decode)