package com.lin;

public class GroupFour {
    public static class Student{
        static int count;
        String name;
        int number;
        
        public Student(String n1){
            name=n1;
            count++;
            number=count;
        }
        
        public void output(){
            System.out.println(this.name+"  number="+this.number);
        }
    }
    public static void main(String[] args) {
                             GroupFour.Student s=new GroupFour.Student("lin");
         //上面的语句怎么不可以换成：GroupFour.Student s=new GroupFour().new Student("lin");

         //之前有个类似的程序是这样的。但这个就运行出错。何解呢？求大侠帮助！！！
        s.output();

    }

}

第一次发帖，还请海涵。多谢提点。