import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); for(int i = 1; i <= n; i++){ int num1 = sc.nextInt(); int num2 = sc.nextInt(); System.out.println(num1 + num2); } } }利用循环来控制输入数据的个数。