新的NSMutableDictionary,其值来自其他NSMutableDictionary

Question

我有一个带有以下值的NSMutableDictionary

itemDictionary: {
    div = "Photo";
    id = "http://www.myurl.com/images/photo.php?category=images";
    summary = "Cool pictures";
    title = "Photographs";
    updated = Z;
}

使用id值创建新词典的最佳方法是什么？

我将不胜感激任何帮助.

Answer 1

这个解决方案似乎很清楚:

[NSDictionary dictionaryWithObject:[itemDictionary objectForKey:@"id"] forKey:@"id"]