题目四：控制台输出九九乘法表

package liu0912;

public class Jiujiu {

public static void main(String[] args) {

for(int i=1;i<=9;i++)
{
for(int j=1;j<=i;j++)
{
int z=i*j;
System.out.print(j+"*"+i+"="+z+" ");
}

System.out.println();
}

}

}