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老师批语：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>document</title>
<script type="text/javascript">
for (var i = 1;i <= 9;i++)
{
for (var j = 1;j <= i;j++)
{
if(i * j < 10)
{
document.write(i + "x" + j + "=" + (i * j) + " ");
}else
{
document.write(i + "x" + j + "=" + (i * j) + " ");
}
};
document.write("<br>");
};
</script>
</head>
<body>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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