自定义按照index和key访问的List

2019-11-14 16:47:34

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　　List<T>用起来比较方便，但是有时候要按照Index来访问List中的对象有些繁琐，所以想是不是扩展一下，既能按照Index来访问，又能按照Key访问。

　　实现方法：

    public class Person    {        public string Name { get; set; }        public int Age { get; set; }    }    public class PersonCollecton : List<Person>    {        public Person this[string name]        {            get            {                for (int i = 0; i < this.Count; i++)                {                    if (this[i].Name == name) return this[i];                }                return null;            }        }    }  public calss Test  {      static void Main()      {          PersonCollection persons = new PersonCollection();          persons.Add(new Person(){Name = "Li Lei", Age = 35};          persons.Add(new Person(){Name = "Han Meimei", Age = 32};          Person HanMeimei = persons["Han Meimei"];     }}