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stored to '*' during its initialization is never read

2014-03-18 09:54 519 查看
NSMutableArray *arr = [[NSMutableArray alloc]init];
arr = [dic objectForKey:key];

出现stored to 'datesArray' during its initialization is never read

改成

NSMutableArray *arr = nil;
arr = [dic objectForKey:key];

即可
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