html獲取元素座標

// 獲取元素座標
function getElementOffset(element) {
  let offset = { left: 0, top: 0 }
  let current = element.offsetParent

  offset.left += element.offsetLeft
  offset.top += element.offsetTop

  while (current !== null) {
    offset.left += current.offsetLeft
    offset.top += current.offsetTop
    current = current.offsetParent
  }
  return offset
}