underscore读取，排行榜保护

shared/db/Item.ts

@@ -1,6 +1,6 @@
 import BaseModel from './BaseModel';
 import { index, getModelForClass, prop, DocumentType, modelOptions } from '@typegoose/typegoose';
-const _ = require('underscore');
+import { findIndex } from 'underscore';
 // const Transaction = require("mongoose-transactions");
 @index({ roleId: 1, id: 1 })
 @index({ seqId: 1 })
@@ -60,7 +60,7 @@ export default class Item extends BaseModel {
                 rec = await ItemModel.findOneAndUpdate({ roleId, id }, { $inc: { count: ratio * count } }, { new: true, upsert: true }).lean(lean);
             }
             if (!!rec) {
-                let index = _.findIndex(result,{id})
+                let index = findIndex(result,{id})
                 if (!!result[index]) {
                     result[index] = { id: rec.id, count: rec.count }
                 } else {