iview upload组件 上传 vue2 写法备份

  <Upload
          :action="urlDoMain + 'middle/bla'"
          :headers="{
            'Current-id': accountId,
            'Current-name': account,
          }"
          :format="['xlsx','xls']"
          accept=".xlsx,.xls"
          :multiple="false"
          :data="uploadData"
          :show-upload-list="false"
          :before-upload="handleBeforeUpload"
          :on-format-error="handleFormatError"
          :on-success="handleSuccess"
          style="display: inline-block; ">
        <i-Button type="primary" >上传</i-Button>
      </Upload>


  handleBeforeUpload (file) {
        if (file.type === 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' || file.type === 'application/vnd.ms-excel') {
          // this.uploadData.file = file
        }
      },

   handleFormatError (file) {
        this.$Message.error('文件 ' + file.name + ' 格式不正确，请上传.xls,.xlsx文件。')
        this.$nextTick(() =>{
          this.uploadData = {}
        })
      },
  handleSuccess (res, file) {
        console.log(res, 'resimport')
        if (res.code == 0) {
          this.$Message.success('成功！');
        } else {
          this.$Message.error(res.msg)
        }
      },

// 一个防抖写法
  var debounce = (fn, delay) => {
    // 1.定义一个定时器, 保存上一次的定时器
    let timer = null
    // 2.真正执行的函数
    const _debounce = function() {
      // 取消上一次的定时器
      if (timer) clearTimeout(timer)
      // 延迟执行
      timer = setTimeout(() => {
        // 外部传入的真正要执行的函数
        fn()
      }, delay || 1000)
    }
    return _debounce
  };
// 使用
funName: debounce(()=>{
    // 执行操作
}, 300)