Question

嗨，我想减少两个范围滑块，因为第一个增加范围是为了一个有趣的项目。

<html>
<input type="range" min="-12" max="12" step="1" value="0" class="vslider" id="b1" />

<input type="range" min="-12" max="12" step="1" value="0" class="vslider" id="b2" />
   </html>

Answer 1

```
<html>
<!--sum minimum to itself and double the max-->
<input type="range" min="0" max="24" step="1" 
         value="0" class="vslider" id="b1" />
    </html>



  ```
  ```
 <script>
 b1.oninput = function(evt){
 var dummy = 0;
 var minus = 0;

 var minus = parseFloat(evt.target.value);
//strip off decimal point if you like
  dummy = Math.round(minus-12);
//jam result in dummy var
//works for me
}
</script>

```

范围滑块反比例

1 个答案: