九九乘法表

<script type="text/javascript">
//  for(var i=0;i<10;i++)
//        {
//            document.write("<tr>");
//            for(j=1;j<10;j++)
//            {
//                if(j<=i)
//                {
//                    document.write("<td style='boder:2px;solid:#004B8A;background:#FFFFFF;'>"+i+"*"+j+"="+(i*j)+"</td>");
//                }
//                else
//                {
//                    document.write("<td style='border:none;'</td>");
//                }             
//            }
//            document.write("</tr>");
//        }

 

               var i=1;//行变量
               var j=1;//列变量
               document.write("<table>");
               document.write("<caption><b>九九乘法表</b></caption>");
               for(i=1;i<=9;i++)
               { 
                  if(i%2==0) //判断偶行
                  document.write("<tr bgcolor='pink'>");
                   else
                  document.write("<tr bgcolor='green'>")
                  for(j=1;j<=i;j++)
                  {
                  document.write("<td>"+j+"<font color='red'>*</font>"+i+"</td>");
                 }
                document.write("</tr>");
               }
              document.write("</table>");
               document.write("<table>");
               document.write("<caption><b>九九乘法表结果</b></caption>");
               for(i=1;i<=9;i++)
               { 
                  if(i%2==0)
                  document.write("<tr bgcolor='pink'>");
                   else
                  document.write("<tr bgcolor='green'>")
                  for(j=1;j<=i;j++)
                  {
                  document.write("<td>"+j*i+"</td>");
                 }
                document.write("</tr>");
               }
              document.write("</table>");
</script>