Output:
({
"Client Characteristic Configuration" = <41424344 45463132 31323334 35363738 45324441>;
})
Code :
print("localName4", localName4)
if (localName4 != nil) {
print("exists")
if localName4 is Dictionary<AnyHashable,Any> {
print("Yes, it's a Dictionary")
do {
if let jsonResult = try JSONSerialization.jsonObject(with: localName4 as! Data, options: []) as? NSDictionary {
print(jsonResult)
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
}
我正在尝试从结果中获得价值<41424344 45463132 31323334 35363738 45324441>
。当我尝试解析获得异常的值时:
无法将“NSDictionaryM”类型的值转换为“NSData”
没有必要把它投射到Data
并将其序列化为Dictionary
。要从字典中访问值,只需通过键调用它们:
let configuration = localName4["Client Characteristic Configuration"]
如果localName4
的声明类型不是[AnyHashable : Any]
,则在可能的情况下更改声明或将其转换为:
if let dict = localName4 as? [AnyHashable : Any] {
let configuration = dict["Client Characteristic Configuration"]
...
}