text: //设计数据库字段时，建议和给前端的一致，或者约定规则处理起来比较方便，下面的做法为反面教材（太TM累了）。
  const USER_TO_FRONT = {
  	u_id: "userId",
  	u_name: "userName",
  	u_password: "password",
  	u_role: "role",
  	u_sex: "sex",
  	u_icon: "icon",
  	u_status: "status",
  	u_create_time: "createTime"
  }
  
  const USER_TO_DB = {
  	"userId": "u_id",
  	"userName": "u_name",
  	"password": "u_password",
  	"role": "u_role",
  	"sex": "u_sex",
  	"icon": "u_icon",
  	"status": "u_status",
  	"createTime": "u_create_time",
  }
  
  const ARTICLE_TO_FRONT = {
  	"a_id": "articleId",
  	"a_title": "title",
  	"a_content": "content",
  	"a_createdate": "createDate",
  	"a_updatedate": "updateDate",
  	"a_viewcount": "viewCount",
  	"a_likecount": "likeCount",
  	"a_banner": "banner",
  	"a_status": "status",
  	"u_id": "userId",
  }
  const ARTICLE_TO_DB = {
  	"a_id": "articleId",
  	"a_title": "title",
  	"a_content": "content",
  	"a_createdate": "createDate",
  	"a_updatedate": "updateDate",
  	"a_viewcount": "viewCount",
  	"a_likecount": "likeCount",
  	"a_banner": "banner",
  	"a_status": "status",
  	"u_id": "userId",
  }
  const CATEGORY_TO_FRONT = {
  	"cat_id": "categoryId",
  	"cat_name": "categoryName",
  	"cat_parentid": "categoryParentId",
  	"cat_type": "categoryType",
  	"cat_order": "categoryOrder",
  	"cat_status": "categoryStatus",
  	"cat_level": "categoryLevel",
  	"cat_description": "description",
  }
  
  const CATEGORY_TO_DB = {
  	"categoryId": "cat_id",
  	"categoryName": "cat_name",
  	"categoryParentId": "cat_parentid",
  	"categoryType": "cat_type",
  	"categoryOrder": "cat_order",
  	"categoryStatus": "cat_status",
  	"categoryLevel": "cat_level",
  	"description": "cat_description",
  }
  
  module.exports = {
  	USER_TO_FRONT,
  	USER_TO_DB,
  	ARTICLE_TO_FRONT,
  	ARTICLE_TO_DB,
  	CATEGORY_TO_FRONT,
  	CATEGORY_TO_DB
  }