https://blog.youkuaiyun.com/CNLF14zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/CNLF14/article/details/48733483https://blog.youkuaiyun.com/CNLF14/article/details/48733483CNLF14Fri, 25 Sep 2015 15:14:53 +0800https://blog.youkuaiyun.com/CNLF14/article/details/48027143https://blog.youkuaiyun.com/CNLF14/article/details/48027143CNLF14Thu, 27 Aug 2015 14:21:30 +0800https://blog.youkuaiyun.com/CNLF14/article/details/46941483https://blog.youkuaiyun.com/CNLF14/article/details/46941483CNLF14Wed, 26 Aug 2015 00:14:19 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47777195https://blog.youkuaiyun.com/CNLF14/article/details/47777195CNLF14Wed, 19 Aug 2015 10:47:47 +0800:通常是对系统库文件的引用，编译器会去系统文件目录下查找。 那么这就会导致了头文件循环引用的问题了，通常都是出现虽然你导入了该头文件，但在使用时比如使用`@propery(nonatomic)A *a;`会出现： `Unknown Type` 之类错误.]]>https://blog.youkuaiyun.com/CNLF14/article/details/47610289https://blog.youkuaiyun.com/CNLF14/article/details/47610289CNLF14Thu, 13 Aug 2015 11:47:07 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47359461https://blog.youkuaiyun.com/CNLF14/article/details/47359461CNLF14Sat, 08 Aug 2015 16:19:22 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47188341https://blog.youkuaiyun.com/CNLF14/article/details/47188341CNLF14Sat, 01 Aug 2015 22:15:19 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47101785https://blog.youkuaiyun.com/CNLF14/article/details/47101785CNLF14Tue, 28 Jul 2015 11:36:34 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47086847https://blog.youkuaiyun.com/CNLF14/article/details/47086847CNLF14Mon, 27 Jul 2015 18:02:31 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47083133https://blog.youkuaiyun.com/CNLF14/article/details/47083133CNLF14Mon, 27 Jul 2015 13:45:58 +0800https://blog.youkuaiyun.com/CNLF14/article/details/47070463https://blog.youkuaiyun.com/CNLF14/article/details/47070463CNLF14Sun, 26 Jul 2015 19:10:35 +0800https://blog.youkuaiyun.com/CNLF14/article/details/46931083https://blog.youkuaiyun.com/CNLF14/article/details/46931083CNLF14Fri, 17 Jul 2015 18:26:09 +0800https://blog.youkuaiyun.com/CNLF14/article/details/45101323https://blog.youkuaiyun.com/CNLF14/article/details/45101323CNLF14Fri, 17 Apr 2015 19:56:23 +0800https://blog.youkuaiyun.com/CNLF14/article/details/45040611https://blog.youkuaiyun.com/CNLF14/article/details/45040611CNLF14Tue, 14 Apr 2015 13:10:45 +0800https://blog.youkuaiyun.com/CNLF14/article/details/44997819https://blog.youkuaiyun.com/CNLF14/article/details/44997819CNLF14Sat, 11 Apr 2015 18:56:35 +0800 New file -> other -> PCH File 2> 在工程设置里面Bulid Settings -> Prefix Header ->写进pch文件的相对地址（e.g : $(SRCROOT)/Fenvo/Fenvo-P]]>https://blog.youkuaiyun.com/CNLF14/article/details/44997727https://blog.youkuaiyun.com/CNLF14/article/details/44997727CNLF14Sat, 11 Apr 2015 18:39:32 +0800https://blog.youkuaiyun.com/CNLF14/article/details/44997143https://blog.youkuaiyun.com/CNLF14/article/details/44997143CNLF14Sat, 11 Apr 2015 17:24:56 +0800https://blog.youkuaiyun.com/CNLF14/article/details/44997111https://blog.youkuaiyun.com/CNLF14/article/details/44997111CNLF14Sat, 11 Apr 2015 17:22:43 +0800https://blog.youkuaiyun.com/CNLF14/article/details/44996881https://blog.youkuaiyun.com/CNLF14/article/details/44996881CNLF14Sat, 11 Apr 2015 17:03:39 +0800https://blog.youkuaiyun.com/CNLF14/article/details/43178461https://blog.youkuaiyun.com/CNLF14/article/details/43178461CNLF14Tue, 27 Jan 2015 01:05:01 +0800