JSONKit:更改和序列化JSON属性的值 [英] JSONKit: changing and serializing JSON attribute's value

问题描述

我正在使用JSONKit将JSON字符串解析为NSDictionary:

I am using JSONKit to parse JSON string into NSDictionary:

NSDictionary *deserializedData = [jsonString objectFromJSONString];

我的问题是:如何更改字典值并获取更改的JSON字符串?

My question is: how can I change the dictionary values and get a changed JSON String?

我试图更改字典值:

[deserializedData setObject:[NSNumber numberWithInt:iRatings] forKey:@"ratings"];   

但是应用程序在该行崩溃.我在做什么错了?

But the app crashes in that line. What am I doing wrong?

提前谢谢！

推荐答案

虽然其他答案正确，但在这种情况下，您真正​​想要的是:

While the other answers are correct, what you really want in this case is:

NSMutableDictionary *deserializedData = [jsonString mutableObjectFromJSONString];

mutableObjectFromJSONString方法将直接创建一个可变字典，从而节省时间和内存.

The mutableObjectFromJSONString method will create a mutable dictionary directly, which saves time and memory.

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