添加store相关

src/main.js

@@ -3,9 +3,11 @@ import './assets/main.css'
 import { createApp } from 'vue'
 import App from './App.vue'
 import router from './router'
+import store from './store/store.js'
 
 const app = createApp(App)
 
 app.use(router)
+app.provide('store', store)
 
 app.mount('#app')

src/store/store.js

@@ -0,0 +1,21 @@
+import { createStore } from 'vuex'
+
+const store = createStore({
+  state() {
+    return {
+      currentRoute: null
+    }
+  },
+  mutations: {
+    setCurrentRoute(state, route) {
+      state.currentRoute = route
+    }
+  },
+  getters: {
+    currentRoute(state) {
+      return state.currentRoute
+    }
+  }
+})
+
+export default store