【C#】DAY4

1.属性访问器

namespace test
{
    public class visit
    {
        private int intval = 1;
        public int val//访问器
        {
            get { return intval; }
            set { intval = value; }//value是关键字，不可更改
        }
}
    class Program
    {
        static void Main(string[] args)
        {
            visit test = new visit();
            WriteLine(test.val);//调用访问器
            test.val = 2;
            WriteLine(test.val);
        }
    }
}

2.链表及相关方法

namespace test
{
    public class Name
    {
        public string name;
        public Name() { name = "CN"; }
        public Name(string n) { name = n; }
    }

    class Program
    {
        static void Main(string[] args)//链表：任意类型关联，注意使用规定方法
        {
            int n1 = 1;
            string[] nmore = { "NO","YES" };
            Name m1 = new Name();
            Name m2 = new Name("CYN");
            ArrayList L = new ArrayList();//创建链表
            L.Add(n1);L.Add(2);L.Add(m1);L.Add(m2);//添加节点
            WriteLine("List Length is: " + L.Count);//链表节点数
            WriteLine((int)L[0]); WriteLine((int)L[1]);
            WriteLine(((Name)L[2]).name); WriteLine(((Name)L[3]).name);//输出链表内容要转换类型
            L.RemoveAt(2);L.Remove(n1);//删除节点
            L.AddRange(nmore);//批量添加节点
            WriteLine("YES is at 3 ?" + (string)L[3]);
            WriteLine("CYN is at: " + L.IndexOf(m2));//查询节点位置
        }
    }
}

3.“is”判定字

if(3 is int) { WriteLine("3 is integer"); }//“is”判断是否是指定类型

4.重载运算符

//重载运算符
public static AddClass operator+(AddClass a1,AddClass a2)
{
AddClass returnVal=new AddClass();
returnVal.val=a1.val+a2.val;
return returnVal;
}