根据监控显示，有一个穿着白色衣服的男子，在一个平房的边上，很悠闲的抽烟。突然有一个穿着黑色衣服的男子，拿着一把凶器，狠狠的朝着白衣服的男子连捅几刀。接着又进入到一间平房内，随后在这一个平房内展开大屠杀
The UISearchDisplayController is very handy and implementing search is pretty straightforward. However, I bump into problem when, in my app, I want to display search result with empty search string b
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