刚入坑，很多都不会，有点蒙圈

Question

刚入坑，完全蒙

 

Answer 1

把i++放到sum = sum+i下面：

public static void main(String[] args) {
        int i = 1, sum = 0;
        while (i <= 1000) {
            sum = sum + i;
            i++;
        }
        System.out.println("sum = " + sum);
    }