我的项目中须要表格数据主动滚动，我的项目基于element-plus，办法如下：

function useElTableScroll(dom, autoScrollFlag) {  const scrollTop = ref(0)  //内容高度  const scrollHeight = ref(0)  //滚动区域  const scrollConHeight = ref(0)  //定时器  const timer = ref(null)  //定时器  const timerout = ref(null)  var requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame ||    window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;  var cancelAnimationFrame = window.cancelAnimationFrame || window.mozCancelAnimationFrame;  //是否主动滚动  const autoScroll = () => {    if (!autoScrollFlag) {      return false    }    timerout.value = setTimeout(() => {      scrollConHeight.value = dom.value.$refs.bodyWrapper.clientHeight      scrollHeight.value = dom.value.$refs.tableBody.clientHeight      scrollStep()    }, 3000)  }  //滚动增加  function scrollStep() {    scrollTop.value++    if (      scrollTop.value > scrollHeight.value - scrollConHeight.value &&      scrollHeight.value > 0    ) {      timerout.value && clearTimeout(timerout.value)      setTimeout(() => {        scrollTop.value = 0        dom.value.setScrollTop(scrollTop.value)        autoScroll()      }, 3000)    } else {      timer.value = requestAnimationFrame(scrollStep)    }    dom.value.setScrollTop(scrollTop.value)  }  //革除滚动  function clearScroll() {    timer.value && cancelAnimationFrame(timer.value)    timerout.value && clearTimeout(timerout.value)  }  //鼠标进入  function cellMouseEnter() {    clearScroll()  }  //鼠标移出  function cellMouseLeave() {    scrollTop.value = dom.value.$el.querySelector(      ".el-scrollbar__wrap"    ).scrollTop    autoScroll()  }  return {    autoScroll,    clearScroll,    cellMouseEnter,    cellMouseLeave  }}export default useElTableScroll

setup中调用如下：

const table = ref(null)const { autoScroll, clearScroll, cellMouseEnter, cellMouseLeave } = useElTableScroll(table, props.autoScroll)onMounted(() => {  autoScroll()})onUnmounted(() => {  clearScroll()})

props.autoScroll是内部管制是否主动滚动