<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
table{border-collapse: collapse;}
td{
border: 1px solid black;
width: 20px;
height: 20px;
}
</style>
</head>
<body>
<script>
var str="<table>";
var row=Number(prompt("请输入行数"));
var col=Number(prompt("请输入列数"));
if(!isNaN(row)&&!isNaN(col)){
for(var j=0;j<row;j++){
str+="<tr>";
for(var i=0;i<col;i++){
str+="<td></td>";
}
str+="</tr>";
}
str+="</table>";
}
console.log(str);
document.write(str);
</script>
</body>
</html>运行结果
10乘以10
