重要方法的工程结构（控制台应用程序）+测试代码+运行结果：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Dictionary泛型集合
{
class Program
{
//定义“头衔”-“名字”字典泛型集合（此处，因静态主函数要调用它，所以得把它写成静态的）
static Dictionary<string, string> titleNameDic = new Dictionary<string,string>();
static void Main(string[] args)
{
//1.添加
titleNameDic.Add("师傅","唐三藏");
titleNameDic.Add("大师兄","孙悟空");
titleNameDic.Add("二师兄","猪八戒");
titleNameDic.Add("沙师弟","沙悟净");
titleNameDic.Add("白龙马","敖烈");
//2.移除
titleNameDic.Remove("白龙马");//移除：remove（键）
//3_1.访问（法一）
Console.WriteLine("“师傅”对应的名字是：" + titleNameDic["师傅"]);
//3_2.访问（法二）
string s = string.Empty;
titleNameDic.TryGetValue("大师兄", out s);
Console.WriteLine("“大师兄”对应的名字是：" + s);
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
//4_1.据“键值对”遍历
foreach (KeyValuePair<string, string> kvp in titleNameDic)
{
Console.WriteLine("通过键值对遍历集合，Key = {0}, Value = {1}", kvp.Key, kvp.Value);
}
Console.WriteLine();
//4_2.据“键”遍历
foreach (string title in titleNameDic.Keys)
{
Console.WriteLine("键："+title+" "+"值："+titleNameDic[title]);
}
Console.WriteLine();
//4_3.据“值”遍历
foreach (string name in titleNameDic.Values)
{
Console.WriteLine( "值：" + name);
}
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
//ContainsKey()、ContainsValue() —— 是否包含键、值
Console.WriteLine("是否包含键“唐太宗”："+titleNameDic.ContainsKey("唐太宗"));
Console.WriteLine("是否包含值“沙悟净”：" + titleNameDic.ContainsValue("沙悟净"));
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("清空后，查看集合内容：");
//Clear()清空
titleNameDic.Clear();
foreach (KeyValuePair<string, string> kvp in titleNameDic)
{
Console.WriteLine("通过键值对遍历集合，Key = {0}, Value = {1}", kvp.Key, kvp.Value);
}
Console.ReadKey();
}
}
}
