1.C编程中使用librdkafka库去连接kafka集群分为生产端，消费端两个部分。本次是在https://github.com/edenhill/librdkafka(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fgithub.com%2Fedenhill%2Flibrdk