dictionary中在key不变的时候如何改变它的value值啊？

Question

RT

Answer 1

Dictionary[key] = value;

Answer 2

 Dictionary<string, string> openWith = 
    new Dictionary<string, string>();
            int i=0;             if (openWith .Contains(i)) 
            { 
                openWith [i] = i; //修改key为i的Value 
            } 
            else 
            { 
                openWith .Add(i, 0); //添加key为i的记录 
            }

Answer 3

或者这样也可以比较简单private void updateDictionaryValue(System.Collections.Dictionary dt,object Key,object updateValue )
        {
            dt[Key] = updateValue;
        }