bugfix

pages/home/home.js

@@ -187,10 +187,11 @@ Page({
   onKeyPress(r) {
     //只有在弹窗出现时才扫码
     if (this.data.scanDialogDisplay > 0) {
-      refund(r);
+      this.refund(r);
     }
   },
    
+  //退款 
   refund(barcode) {
     this.setData({ scanDialogDisplay: 2 })
     var request = api.createCommonRequest();