java-day19_3

1、九九乘法表

package struct;

public class ForDemo02 {
    public static void main(String[] args) {
        for (int j = 1; j <=9; j++) {
            for (int i = 1; i <= j; i++) {  //注意i<=j
                System.out.print(j+"*"+i+"="+(j*i)+"\t"); //这样可以将一类在一行输出

            }
            System.out.println(); //输出一类之后进行换行
        }
    }
}