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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
// 99*
var i =1;
for (i;i<=9;i++) {
for (var b=i;b<=9;b++) {
document.write(i+'x'+b+'='+(i*b)+' ');
}
document.write('<br>');
}
//三角
// var i=1;
// var b='*';
// var c='*'
// while(i<20){
// document.write(b+"<br>");
// b=b+c;
// i++;
// }
</script>
</body>
</html>