滚动条保持在最底部

  <div class="formBox"  id="formBox"></div>
  
  .formBox {
  max-height: 580px;
  overflow-y: auto;
  }
  
 //滚动条一直保持在底部
  this.$nextTick(() => {
    var div = document.getElementById('formBox')
    div.scrollTop = div.scrollHeight
  })