#include <stdio.h> int main() { printf(" Nine-by-nine Multiplication Table\n"); printf("--------------------------------------\n"); printf(" 1 2 3 4 5 6 7 8 9\n"); printf("--------------------------------------\n"); int i, j; for (i = 1; i <= 9; i++) { printf("%2d ", i); //%2d右对齐,占2个字符;" "再加1个空格 for (j = 1; j <= i; j++) { printf("%3d ", j * i); //%3d右对齐,占3个字符;" "再加1个空格 } printf("\n"); } printf ("--------------------------------------\n"); return 0; }
public class Main{ public static void main(String[] args) { System.out.println(" Nine-by-nine Multiplication Table"); System.out.println("--------------------------------------"); System.out.println(" 1 2 3 4 5 6 7 8 9"); System.out.println("--------------------------------------"); int i,j; for(i=1;i<=9;i++) { System.out.printf("%2d ",i); //%2d右对齐,占2个字符;" "再加1个空格 for(j=1;j<=i;j++) { System.out.printf("%3d ",j*i); //%3d右对齐,占3个字符;" "再加1个空格 } System.out.println(); } System.out.println("--------------------------------------"); } }
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