LInq 操作Dictionary和List

[taz01]

Dictionary<int, int>
List<P> {ID，Count}
在Dictionary中的Key与List<P>中的p.id 相同的时候
如何通过 把对应Key的Dictionary中的Value插入到P.count中？

[rczjp]

 class Program
    {
        static int[] i1 = { 11, 22, 33, 44, 4 };
        static int[] i2 = { 9, 8, 7, 6, 5 };
        static void Main(string[] args)
        {
            Dictionary<int, int> dic = new Dictionary<int, int>();
            for (int i = 0; i < i1.Length; i++)
            {
                dic.Add(i1[i], i2[i]);
            }
            List<People> li = new List<People>();
            People people1 = new People();
            people1.ID = 11;
            li.Add(people1);

            People people2 = new People();
            people2.ID = 33;
            li.Add(people2);

            var query = from d in dic join l in li.AsEnumerable() on d.Key equals l.ID select l.Count = d.Value;
            Array.ForEach(query.ToArray(), n => Console.WriteLine(n));

            Console.Read();
        }

        public class People
        {
            public int ID;
            public int Count;
        }
    }

结果：
9
7

[lxibon]

同上，

[yingzhilian2008]

1楼正解

[huminghua]

学习，，，