vue踩坑之路 elementui el-upload组件

<el-upload
  class="creater-cfl-upload"
  :action="baseUrl"
  :http-request="handleCustomRequest"
  :on-progress="handleFileUploadProgress"
  :limit="1"
  :show-file-list="false"
  :file-list="[]"
  :on-exceed="handleExceed"
>
  <el-button size="small" type="primary">
    <i class="el-icon-upload2"></i>
    upload
  </el-button>
</el-upload>

1. 必须填写action，否则会有报错
2. limit选择1，且不展示filelist的情况下，需要将filelist永远传空，否则会触发超出限制的钩子。