List<T> lst=new List<T>();
List<T> l=lst.FindAll(delegate(T t){return t.name.Contains("a");});
或使用LINQ

       private void button1_Click(object sender, EventArgs e)
        {
            List<string> myList = new List<string>();
            for(int i = 0; i < 10; i++)
            {
                myList.Add(i.ToString ());//我给他填充1--10
            }

            if (myList.Find(MathChar) != null)
            {
                MessageBox.Show("有这个元素");
            }
            else
            {
                MessageBox.Show("没有这个元素");
            }
        }


        private bool MathChar(string str)
        {

            if (str.Equals(&qu