c#編程dictionary中如何通過value 來獲取相應的key
2 回答
12345678_0001
TA貢獻1802條經驗 獲得超5個贊
Demo:
var dic = new Dictionary<string, int>()
{
{"a",1},
{"b",2},
{"c",3},
{"d",1}
};foreach (var item in dic)
{ if (item.Value == 1)
{
Console.WriteLine(item.Key);
}
}
阿波羅的戰車
TA貢獻1862條經驗 獲得超6個贊
Dictionary<string,string> dic =newDictionary<string,string>()
{{"1","one"},};var key_by_value = dic.Where(p => p.Value=="one").Select(p => p.Key);foreach(var key in key_by_value ){....}
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