ivew Upload 上传时附带的额外参数

 <Upload
            action="/api/device/importData"
            :data="uploadData"
            :before-upload="handleUpload"
          >
            <Button icon="ios-cloud-upload-outline">导入</Button>
        </Upload>

　　

 handleUpload (file) {
                this.uploadData.importData=file;
                this.uploadData.merchantCode  =  Cookies.set('merchantCode');
                console.log(this.uploadData.importData)
                // return false;
      },