输出九九乘法表

public class JiuJiuChengFaBiao {
    public static void main(String[] args){
        for(int a=1; a<10; a++){
            //进入循环,内循环会被重新定义
            for(int b=1; b<a+1; b++){
                System.out.print(a+"*"+b+"="+(a*b)+"  ");
            }
            System.out.println("");
        }
    }
}