1 设计目标：网络无中心，世界任我行 在没有任何固定服务器的情况下，人们仍然可以畅通无阻的进行点对点的交流，传输文件，语音，视频等！ -a design goals : network-center, a world imprisoned in the absence of any fixed server circumstances, people can still unimpeded for peer-to-peer exchanges, transfer files, voi