el-table + el-upload实现每行数据中上传文件并赋值

el-upload组件（对on-success钩子函数使用箭头函数）

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js代码赋值

handleFileSuccess(response, file, fileList, index) {
      this.upload.isUploading = false;
      if (response.code == 200) {
        this.$modal.msgSuccess(response.msg);
        // 设置对应行文件路径
        this.$set(
          this.tabData.body[index],
          "value",
          response.fileName
        );
      } else {
        this.$modal.msgError(response.msg);
      }
    },