<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>给输入框绑定待选项</title>
<base target="_self"/>
</head>
<body>
<form>
输入你所要查询的车型：<input type="text" list="carsname">
<datalist id="carsname">
<option>宝马</option>
<option>奔驰</option>
<option>奥迪</option>
<option>法拉利</option>
<option>保时捷</option>
</datalist>
</form>
</body>
</html>
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