C#实现类似jQuery的方法连缀功能

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace CSharpMethodLikeJQuery
 {
  public class jQPerson
  {
   string Id { set; get; }
   string Name { set; get; }
   int Age { set; get; }
   string Sex { set; get; }
   string Info { set; get; }
 
   public jQPerson()
   {
 
   }
   /// <summary>
   /// 设置ID,返回this,即jQPerson实例
   /// </summary>
   /// <param name="Id"></param>
   /// <returns></returns>
   public jQPerson setId(string Id)
   {
    this.Id = Id;
    return this;
   }
   /// <summary>
   /// 返回this,即jQPerson实例
   /// </summary>
   /// <param name="name"></param>
   /// <returns></returns>
   public jQPerson setName(string name)
   {
 
    this.Name = name;
    return this;
   }
   /// <summary>
   /// 返回this,即jQPerson实例
   /// </summary>
   /// <param name="age"></param>
   /// <returns></returns>
   public jQPerson setAge(int age)
   {
 
    this.Age = age;
    return this;
   }
   /// <summary>
   /// 返回this,即jQPerson实例
   /// </summary>
   /// <param name="sex"></param>
   /// <returns></returns>
   public jQPerson setSex(string sex)
   {
 
    this.Sex = sex;
    return this;
   }
   /// <summary>
   /// 返回this,即jQPerson实例
   /// </summary>
   /// <param name="info"></param>
   /// <returns></returns>
   public jQPerson setInfo(string info)
   {
 
    this.Info = info;
    return this;
   }
   /// <summary>
   /// tostring输出键值对信息
   /// </summary>
   /// <returns></returns>
   public string toString()
   {
 
    return string.Format("Id:{0},Name:{1},Age:{2},Sex:{3},Info:{4}", this.Id, this.Name, this.Age, this.Sex, this.Info);
 
 
   }
 
  }
 }　

/// <summary>
   ///toString 的测试
   ///</summary>
   [TestMethod()]
   public void toStringTest()
   {
    jQPerson target = new jQPerson();
    target.setId("2")
     .setName("jack")
     .setAge(26)
     .setSex("man")
     .setInfo("ok");
    string expected = "Id:2,Name:jack,Age:26,Sex:man,Info:ok";
    string actual;
    actual = target.toString();
    Assert.AreEqual(expected, actual);
    //Assert.Inconclusive("验证此测试方法的正确性。");
   }