muhicast group的用法和樣例：
例句
- Abstract class defines a reference to a member of the multicast group.
抽象類(lèi)定義了對多播組成員的引用。 - Then the server, by sending a single packet of data to that multicast group, would be sending to all the clients as the packets are replicated somewhere along the way.
然后服務(wù)器將單個(gè)數據包發(fā)送到多播組里，當信息包沿著(zhù)路線(xiàn)被重復某地操作時(shí)，將發(fā)送到所有的客戶(hù)機上。
