反向 Ajax,第 1 部分: Comet 简介

http://www.ibm.com/developerworks/cn/web/wa-reverseajax1/

http://www.ibm.com/developerworks/cn/

http://www.ibm.com/developerworks/cn/web/wa-lo-comet/

原文地址:https://www.cnblogs.com/ttjava/p/3620781.html