摘要：
http://www.cnblogs.com/rocketfan/archive/2009/10/02/1577361.htmlhttp://blog.csdn.net/ithomer/article/details/6103530http://wenku.baidu.com/link?url=SbjiZ7EihZXsvWecguJPsoc43zMlu82WxCwd_bvDj29XpbkWfXSUhrrw7VOolxlcUPK0up3EEaVkREabxewcM7fXfwItpPrzqTk2is2jxYS###http://www.cnblogs.com/devil-91/archive/20 阅读全文
