1     public class Student
 2     {
 3         private string name;
 4         private int age;
 5 
 6         public Student() { }
 7 
 8         public Student setName(string name)
 9         {
10             this.name = name;
11             System.Console.WriteLine(name);
12             return this;
13         }
14 
15         public Student setAge(int age)
16         {
17             this.age = age;
18             System.Console.WriteLine(age);
19             return this;
20         }
21     }

1 Student person = new Student();
2 person.setAge(12).setName("Jack");//通过链式调用