数字累加

public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        int start = sc.nextInt();//开始的累加的数字        int end = sc.nextInt();//累加结束的数字        int i = start;        int sum = 0;//累加的和        while(i <= end){//循环累加            sum += start;            start++;            i++;        }        System.out.println(sum);        sc.close();    }

运行结果：