vant uploader 支持图片或视频上传

afterRead(file, name) {
   if(file.file.type.indexOf('video') !== -1 || file.file.type.indexOf('image') !== -1){
       // 图片上传
       this.upFileList.push(file)
       console.log(this.fileList)
   }else{
       this.fileList.pop();  //单张上传
       Toast('只能上传视频/图片')
       console.log(this.fileList)
   }
},