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如何判断某个字符串包含某个字符串？？   

http://www.cocoachina.com/bbs/read.php?tid=48852

http://www.cocoachina.com/bbs/read.php?tid=10632&page=1

iOS通讯录联系人列表较完整(中文排序)

http://www.kankanews.com/ICkengine/archives/117428.shtml