根据“批量对象元素集合”,去应用脚本的 onmousemove 动作,如何实现? - V2EX
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uti6770werty
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根据“批量对象元素集合”,去应用脚本的 onmousemove 动作,如何实现?

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  •   uti6770werty 2021-01-15 17:06:58 +08:00 1841 次点击
    这是一个创建于 1733 天前的主题,其中的信息可能已经有所发展或是发生改变。
     adiv=document.getElementById('adiv'); bdiv=document.getElementById('bdiv'); cdiv=document.getElementById('cdiv'); // ..... // ... // . // 略 zdiv=document.getElementById('zdiv'); //只对一个元素进行应用 bdiv.Onmousemove= function (activeelement) { //xxxx } 

    是不是只能对每个 div 元素重复地写 onmousemove 函数?
    有优雅的批量写法吗?

    4 条回复    2021-01-16 03:58:23 +08:00
    Rhilip
        1
    Rhilip  
       2021-01-15 17:49:52 +08:00
    这为啥不上个循环?或者如果 id 命名有规律,直接使用 querySelectorAll 来选择
    doucument.querySelectorAll("xxxxx").map(x => x.Onmousemove= () => {})
    musi
        2
    musi  
       2021-01-15 19:09:06 +08:00
    事件委托了解一下?
    shenyuzhi
        3
    shenyuzhi  
       2021-01-15 20:41:21 +08:00
    在 body 上监听,然后在 target 上 dispatch
    dd112389
        4
    dd112389  
       2021-01-16 03:58:23 +08:00
    window.addEventListener('mousemove', function (e) {
    // adiv or bdiv or cdiv......
    let target = e.target;
    });
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