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。");   }