//配列の宣言 Dictionary<string, int> a = new Dictionary<string, int>() { {"item1",8}, {"item2",4}, {"item3",12}, }; //上書き a["item1"] = 3; //要素の削除 a.Remove("item1"); //要素の初期化 a.Clear(); 例文 //Dictionary生成 Dictionary<string, int> scores = new Dictionary<string, int>() { { "国</string,></string,></string,></string,>…