1、创建dll文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CLStudent
{
   
    public class Student
    {
   
        //字段
        public string Name = "Tom";
        //属性
        public double ChineseScore {
    get; set; } = 80;
        public double MathScore {
    get; set; } = 90;
        //方法
        public