select 菜单项中加链接

<select name="select1" onChange="window.open(this.options[this.selectedIndex].value)" >
<option selected="selected">------推荐网站------</option>
<option value="https://www.qyjz.com.cn/">企业建站</option>
<option value="https://www.qyjz.com.cn/">企业建站</option>
<option value="https://www.qyjz.com.cn/">企业建站</option>
<option value="https://www.qyjz.com.cn/">企业建站</option>
<option value="https://www.qyjz.com.cn/">企业建站</option>
</select>