public static Dictionary<string, string> ball = new Dictionary<string, string> {
{ "2", "篮球" },
{ "1", "羽毛球" },
{ "19", "桌球" },
{ "57", "高尔夫" },
{ "165", "足球" },
{ "22", "游泳" }};
//键值对取值
foreach(var k in ball.Keys)
{
if(ball[k].Contains(key))
{
items.Append("[" + k+ "]" +ball[k]).Append(" ");
}
}