bubblelevel_prefix.pch

来自「在iPhone OS上使用用Objective-C语言开发的Demo程序」· PCH 代码 · 共 9 行

//
// Prefix header for all source files of the 'BubbleLevel' target in the 'BubbleLevel' project
//

#ifdef __OBJC__
    #import <Foundation/Foundation.h>
    #import <UIKit/UIKit.h>
#endif