1.創建phc文件![](http://images2015.cnblogs.com/blog/291840/201608/291840-20160803223710356-1796009336.jpg)2.在Build Setting/Prefix Header中添加 $(SRCROOT)/fi... ...
1.創建phc文件

2.在Build Setting/Prefix Header中添加 $(SRCROOT)/fileName.pch

1.創建phc文件![](http://images2015.cnblogs.com/blog/291840/201608/291840-20160803223710356-1796009336.jpg)2.在Build Setting/Prefix Header中添加 $(SRCROOT)/fi... ...
1.創建phc文件

2.在Build Setting/Prefix Header中添加 $(SRCROOT)/fileName.pch