九九乘法

 1 <script type="text/javascript">
 2         var str="";
 3         str +="<table width=600 align=center  rules=all>";
 4             for(var i=1;i<=9;i++)
 5             {
 6                 str +="    <tr>";
 7                 for(j=1;j<=i;j++)
 8                 {
 9                 str +="        <td>"+j+"&times"+i+"="+j*i+"</td>";
10                 }
11                 str +="    <tr>";
12             }
13         str +="</table>";
14         document.write(str);