利用改造后的winpcap.dll实现网卡到网卡链路层可靠通讯，实现非TCP/IP方式文件传输,本源码是其中的一个核心类的详细实现-The use of modified winpcap.dll card to card to achieve a reliable link layer communication, the realization of non-TCP/IP file transfer mode, the source is one of the core categories