保存签名相关

app/controller/profile_controller.js

@@ -14,6 +14,7 @@ const smsTypeConst = require('../const/sms_type');
 const qr = require('qr-image');
 const path = require('path');
 const loginWay = require('../const/setting').loginWay;
+const fs = require('fs');
 
 module.exports = app => {
 

app/controller/tender_controller.js

@@ -19,6 +19,7 @@ const accountPermission = require('../const/account_permission');
 const measureType = require('../const/tender').measureType;
 const billsPosConvert = require('../lib/bills_pos_convert');
 const path = require('path');
+const fs = require('fs');
 
 module.exports = app => {