temporaryRepair () {
let currentPosition, timer
let speed = 1 // 页面滚动距离
timer = setInterval(function () {
currentPosition = document.documentElement.scrollTop || document.body.scrollTop
currentPosition -= speed
window.scrollTo(0, currentPosition) // 页面向上滚动
currentPosition += speed // speed变量
window.scrollTo(0, currentPosition) // 页面向下滚动
clearInterval(timer)
}, 1)
}