掏出object里的键值

取出object里的键值
原KeyValuePair<int,string>类型的数据，在传值的过程中变成了Object.
请问现在我该如果把它变回KeyValuePair？

[解决办法]

C# code

KeyValuePair<int,string> pair = (KeyValuePair<int,string>)obj;
[解决办法]
(KeyValuePair)obj
或者
obj as KeyValuePair
[解决办法]
KeyValuePair<int,string> pair = (KeyValuePair<int,string>)obj;
或者
KeyValuePair<int,string> pair = obj as KeyValuePair<int,string>;
[解决办法]
探讨


C# code
KeyValuePair<int,string> pair = (KeyValuePair<int,string>)obj;