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xuyunan/gist:5219053

Created March 22, 2013 05:01
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创建常量
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gistfile1.m
// Easiest way:
// Prefs.h
#define PREFS_MY_CONSTANT @"prefs_my_constant"
// Better way:
// Prefs.h
extern NSString * const PREFS_MY_CONSTANT;
// Prefs.m
NSString * const PREFS_MY_CONSTANT = @"prefs_my_constant";
// from http://stackoverflow.com/questions/538996/constants-in-objective-c
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