将NSDictionary条目添加到NSMutableDictionary

Question

我有一个for循环,通过一个数组中的一系列字典.

如何通过for循环将所有词典条目合并为一个NSMutableDictionary？

我试过了addEntriesFromDictionary,但它不起作用.谢谢你的帮助.

for (int i=0; i<sections.count; i++){

    formElements    = [[sections objectAtIndex:i]objectForKey:@"Dictionary"];        
}

Answer 1

你可以添加如下的字典对象.

NSMutableDictionary *mDict=[NSMutableDictionary dictionary];
    [mDict addEntriesFromDictionary:DictObj];

Answer 2

NSMutableDictionary * mutableDict = [NSMutableDictionary dictionary];

for (NSDictionary * formElements in sections)
{
    [mutableDict addEntriesFromDictionary:formElements];
}

如果它们不共享任何键是正确的,这应该有效.