我有这行代码,我想提取“标题”键：
var title = jParams["title"] as! String
但它不会让我编译,如果我收到红色的错误消息：
Cannot subscript a value of a type AnyObject with an index of type String
当用println(jParams)在日志中显示jParams的内容时,我得到以下内容：
INCOMING LIST PARAMETERS (jParameters)
Optional({
title = "Example List";
values = (
{
id = 1;
name = "Line 1";
},{
id = 2;
name = "Line 2";
},{
id = 3;
name = "Line 3";
}
);
})
我是Swift的新手,所以我不熟悉处理JSON来处理这些类型问题的细节.可能有什么不对？
//jParams comes from a JSON server response
var data = NSURLConnection.sendSynchronousRequest(request,returningResponse: nil,error: nil)
if data != nil {
var jdata = JSON(data: data!)
var jParams=jdata["responseData"]["extraData"]["params"]
