class Program
{
static void Main(string[] args)
{
Dictionary<string, string> dict = new Dictionary<string, string>();
dict.Add("one", "hello");
dict.Add("two", "world");
dict.Add("three", "gogo");
//判断字典的key是否存在
if (dict.ContainsKey("two"))
{
//根据键值取值
Console.WriteLine(dict["two"]);
}
//输出字典的长度
Console.WriteLine(dict.Count);
//遍历字典
foreach (var i in dict)
{
Console.WriteLine(i.Key + ":" + i.Value);
}
Console.ReadKey();
}
}