一个VC编写的ping的源程序，实现了icmp协议。可直接用在mfc上，方便，简单。一个VC编写的ping的源程序，实现了icmp协议。可直接用在mfc上，方便，简单。-VC prepared a ping of the source, the realization of the icmp protocol. Can be directly used in mfc, the convenient and simple. VC prepared a ping of the source, the