我在编码对角线差异时开始编程，我想出了这种方法，
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
int j = 0;
int a[][] = new int[n][n];
int count1 = 0; int count2 = 0;
int result = 0;
for(int a_i=0; a_i < n; a_i++){
for(int a_j = 0;a_j < n;a_j++){
a[a_i][j] = in.nextInt();
}}
for(int i = 0;i<n;i++)
{
count1+=a[i][j];
System.out.println(count1);
j++;
}
j = 0;
for(int i = n-1;i>=0;i--)
{
count2+=a[i][j];
System.out.println(count2);
j++;
}
result = Math.abs(count1 - count2);
System.out.println(result); …