一个下拉框 支持多选 既支持and查询 又支持or查询
brand = 'Volvo' and brand = 'Saab'
brand = 'Volvo' or brand = 'Saab'
页面有什么好的展现方式吗?下面这样吗?
<html>
<body>
brand:
<select multiple="multiple">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
<select>
<option value="and">and</option>
<option value="or">or</option>
</select>
</body>
</html>