ios - 添加到 NSMutableDictionary 而不替换相似的键

Question

我正在使用相同的键动态填充 NSMutableDictionary。但是，这样做会替换原始键值。我需要的是附加它而不是替换现有 key 。例如，我需要一个像

这样的结构

    {
      @"Key" : @"Value1",
      @"Key" : @"Value2",
      @"Key" : @"Value3"
    }

我知道我可以将创建的每个 NSDictionary 添加到 NSMutableArray，但我的问题来了，因为我需要输入值是 NSDictionary。

目前我有以下替换原始值

  NSMutableDictionary *ripDictionary = [[NSMutableDictionary alloc] init];

    for(NSString *ripId in recievedRips){

        //SOME OTHER CODE

        ripDictionary[@"rip"] = keysAndAttributes;

        [data addObject:ripDictionary];
    }

Answer 1

来自NSDictionary Reference

A key-value pair within a dictionary is called an entry. Each entry consists of one object that represents the key and a second object that is that key’s value. Within a dictionary, the keys are unique. That is, no two keys in a single dictionary are equal (as determined by isEqual:).

也许你可以修改你的代码来接受像这样的字典:

{
      @"Key" : [
               @"Value1",
               @"Value2",
               @"Value3"
           ]
}