以下是我们的字典与一些元素-
Dictionary<int, string> d = new Dictionary<int, string>() { {1,"Electronics"}, {2, "Clothing"}, {3,"Toys"}, {4,"Footwear"}, {5, "Accessories"} };
现在要显示第一个元素,请像这样设置键。
d[1];
上面显示了第一个元素。
using System; using System.Collections.Generic; public class Program { public static void Main() { Dictionary<int, string> d = new Dictionary<int, string>() { {1,"Electronics"}, {2, "Clothing"}, {3,"Toys"}, {4,"Footwear"}, {5, "Accessories"} }; foreach (KeyValuePair<int, string> ele in d) { Console.WriteLine("Key = {0}, Value = {1}", ele.Key, ele.Value); } Console.WriteLine("First element: "+d[1]); } }
输出结果
Key = 1, Value = Electronics Key = 2, Value = Clothing Key = 3, Value = Toys Key = 4, Value = Footwear Key = 5, Value = Accessories First element: Electronics