<option value ="选项1">选项1</option>
<option value ="选项2">选项2</option>
<option value="选项3">选项3</option>
<option value="选项4">选项4</option>
</select>
代码里这样写
<option value ="选项1">选项1</option>
<option value ="选项2">选项2</option>
<option value="选项3">选项3</option>
<option value="选项4">选项4</option>
</select>
代码里这样写