摘要：http://www.docin.com/p-176895291.htmlhttp://www.cnblogs.com/zhixx/archive/2012/02/21/2360833.htmlhttp://www.umlchina.com/xprogrammer/issue/15/RelOO.htmhttp://blog.csdn.net/zhiyang202/article/details/448381
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posted @ 2012-07-12 11:33
