<html>
<head>
<title>非金属10-3</title>
</head>
<body>
<script language="javascript">
var m=20;
var n=20;
document.write("<table border=\"1\">")
for(i=1;i<=m;i++){
document.write("<tr>")
for(j=1;j<=n;j++){
if(j<=i){
document.write("<td>"+i+"×"+j+"="+i*j+"</td>") //document.write("xx")
}
else{
document.write("<td> </td>")
}
}
document.write("</tr>")
}
document.write("</table>")
</script>
</body>
</html>
原文：http://hunkz.blog.51cto.com/6157447/1632823