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UIscrollViewController *scrollView=[[UIscrollViewController alloc ]init];
[self presentViewController:scrollView animated:YES completion:nil];
http://www.cnblogs.com/linyawen/archive/2012/06/09/2542784.html
IOS 弹出模态View presentViewController
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原文地址：http://www.cnblogs.com/zhangleixy/p/4934578.html
