用Java写的简单的乘法口诀： 代码如下
public class HelloWord { public static void main(String[] args) { System.out.println(" 乘法口诀 "); System.out.println("--------------------------------------"); System.out.print(" |"); for (int i = 1; i < 10; i++) { System.out.print(" " + i); } System.out.println("\n--------------------------------------"); for (int i = 1; i < 10; i++) { System.out.print(i + "|"); for (int j = 1; j < 10; j++) { if (i * j < 10) { System.out.print(" " + i * j); } else { System.out.print(" " + i * j); } } System.out.println(); } } }