工作189：配置表头即可

    columns: [
        {type: "selection", width: "50"},
        {prop: "id", label: "ID", width: "60", sortable: true},
        {prop: "name", label: "账号名称", width: "100", sortable: true},
        {prop: "department_name", label: "所属部门"},
        {prop: "platform", label: "所属平台"},
        {prop: "content_type", label: "内容类型"},
        {prop: "resource_type", label: "资源类型"},
        {prop: "price", label: "刊例价"}
      ],

父子组件显示

直接配置column就可以