$emit

src/project/qujing/AppHome/AppHome.vue

@@ -170,7 +170,7 @@ export default {
       uni.switchTab({
         url: '/pages/AppLegalLearning/AppLegalLearning',
         success: ()=> {
-          uni.setStorageSync('inx', index)
+          uni.$emit('update',{inx: index})
         }
       })
     },

src/project/qujing/AppLegalLearning/AppLegalLearning.vue

@@ -35,11 +35,9 @@ export default {
     }
   },
   onShow() {
-    console.log(uni.getStorageSync('inx'),'index');
-    if(uni.getStorageSync('inx')) {
-      console.log(uni.getStorageSync('inx'), 'inx');
-      this.currIndex = uni.getStorageSync('inx')
-    }
+    uni.$once('update',(data)=> {
+      this.currIndex = data.inx
+    })
     if(this.currIndex == 0) {
       this.$refs.OnlineClass.getList();
     } else {
@@ -52,9 +50,6 @@ export default {
       }
     });
   },
-  onHide() {
-    uni.removeStorageSync('inx')
-  },
   components: {
     OnlineClass,
     GeneralLawExam