2019独角兽企业重金招聘Python工程师标准>>> 
class Demo
{
public static void main(String[] args)
{
System.out.println("**20");
System.out.println("acse：");
int x,y;
for(x = 0;x <= 9; x++)
{
for(y = 1;y <= x; y++)
{
System.out.print(y+"*"+x+"="+x*y+"\t");
}
System.out.println();
}
}
}