第一篇随笔Test

public static void main(String[] args){

        int s = upcase(2);
        for (int i = 0 ; i<=2;i++){
            switch (i){
                case 1:
                    System.out.println("case一"+s);
                    s+=1;
                    break;
                case 3:
                    s+=1;
                    break;
                default:
                    System.out.println("default"+s);
                    s+=1;
                    break;
            }
            System.out.println(s);
        }


    }

随笔怎么说，诶