fix

 import Yas from '../../../common/yas';
 import categoryModel from '../../../models/product/category';
 import shopModel from '../../../models/product/shop';
-import Yas from '../../../common/yas';
 
 let app = getApp();
-const yas = new Yas();
 
 const yas = new Yas(app);
 const router = global.router;