scrollheight可以直接赋值吗?
这个方法只能取top不能修改 top 要改top 直接上代码 : html: js: var rectObject = document.getElementById('qqq').getBoundingClientrect(); console.log(111,rectObject.top); setTimeout(()=>{ document.getElementById('qqq').style.top = 100+'px'; var rectObject = document.getElementById('qqq').getBoundingClientRect(); console.log(111,rectObject.top); },1000)