时间：整理时间方法

shared/db/PvpRecord.ts

@@ -1,6 +1,6 @@
 import BaseModel from './BaseModel';
 import { index, getModelForClass, prop, DocumentType } from '@typegoose/typegoose';
-import { getBeforeDayDate } from '../pubUtils/timeUtil';
+import { getTimeFun } from '../pubUtils/timeUtil';
 import { genCode } from '../pubUtils/util';
 import { PvpHeroInfo } from '../domain/dbGeneral';
 import { EXTERIOR } from '../pubUtils/dicParam';
@@ -96,7 +96,8 @@ export default class PvpRecord extends BaseModel {
     }
 
     public static async delPvpRecords() {
-        let result = await PvpRecordModel.deleteMany({ createTime: {$lt: getBeforeDayDate(3)}});//删除小于三天的战报
+        let t = <number>getTimeFun().getBeforeDayWithHour(3);
+        let result = await PvpRecordModel.deleteMany({ createTime: {$lt: t}});//删除小于三天的战报
         return result;
     }
 }