修改

miniprogram/pages/download/download.less

@@ -57,6 +57,9 @@ page {
     box-sizing: border-box;
     .btnImg {
       width: 100%;
+      &:active {
+        opacity: 0.7;
+      }
     }
   }
 }

miniprogram/pages/protocol/register.ts

@@ -25,7 +25,7 @@ Page({
         })
       } else if(options.type == 'activation') {
         this.setData({
-          src: app.globalData.baseUrl + '/classroom-app/#/activationRegister?wx=wx_lite&code=' + options.code
+          src: app.globalData.baseUrl + '/classroom-app/?random='+ Math.random() +'#/activationRegister?wx=wx_lite&code=' + options.code
         })
         // this.setData({
         //   src: app.globalData.baseUrl + '/classroom-app/#/download?wx=wx_lite'