代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div{
float:left;
width:30px;
height:30px;
background:pink;
margin:5px;
}
</style>
</head>
<body>
<div></div>
<script>
for(var i=0;i<5;++i)
{
document.body.innerHTML +="<div></div>";
}
</script>
</body>
</html>