循环给字典添加值

2018-05-10  本文已影响0人  哈利波特会魔法

循环给字典添加值的时候,每次添加的都是同一个值,找了下原因,发现字典对象每次都是同一个对象,并没有实例化。其实应该在循环里面给它实例化,才能保证每次取的都是不同的对象。

NSMutableArray *timeArray = [NSMutableArray new];

NSMutableDictionary *dictTime = [NSMutableDictionary new];

for (int i = 0; i < transTime.count; i++) {
     
        TransferTransferoutTime *transtime = transTime[i];
        [dictTime setObject:transtime.dictName forKey:@"dictName"];
        [dictTime setObject:transtime.dictValue forKey:@"dictValue"];
        [dictTime setObject:@(transtime.defaultFlag) forKey:@"defaultFlag"];
        
        [timeArray addObject: dictTime];
    }

如下,把字典的实例化放在里面。

NSMutableArray *timeArray = [NSMutableArray new];

for (int i = 0; i < transTime.count; i++) {
       NSMutableDictionary *dictTime = [NSMutableDictionary new];

       TransferTransferoutTime *transtime = transTime[i];
        [dictTime setObject:transtime.dictName forKey:@"dictName"];
        [dictTime setObject:transtime.dictValue forKey:@"dictValue"];
        [dictTime setObject:@(transtime.defaultFlag) forKey:@"defaultFlag"];
        
        [timeArray addObject: dictTime];
    }
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