最近一段时间，湖南警方成功的捣毁卖假药的团伙，涉案的金额已经接近5000多万。这一些人就会把柠檬酸还有淀粉全部混合在一起，然后就会制作成多种颜色的胶囊，放在一些包装盒中表示有神奇的功效，慢慢的就变成了一种
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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