我有像这样的NSDictionary格式
{
director = "\U514b\U91cc\U65af\U591a\U798f\U96f7";
duration = 0;
ename = "3 Headed Shark Attack";
id = 538;
language = "\U82f1\U8a9e";
nation = "\U7f8e\U570b";
ranking = "\U672a\U5b9a";
trailer = "<null>";
}
这些数据来自JSon,但最后一个数据为null,因为我无法写出&#34; writetoFile&#34;成功有什么方法可以解决它?