归档

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写一个宏定义

#define redDefinition [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)firstObject] stringByAppendingPathComponent:@"guidang.plist"]

解档

[NSKeyedUnarchiver unarchiveObjectWithFile: redDefinition];

归档

[NSKeyedArchiver archiveRootObject:值 toFile:redDefinition];