pinia

20.vue3/project5/src/App.vue

@@ -1,85 +1,18 @@
-<script setup lang="ts">
-import { RouterLink, RouterView } from 'vue-router'
-import HelloWorld from './components/HelloWorld.vue'
-</script>
-
 <template>
-  <header>
-    <img alt="Vue logo" class="logo" src="@/assets/logo.svg" width="125" height="125" />
-
-    <div class="wrapper">
-      <HelloWorld msg="You did it!" />
-
-      <nav>
-        <RouterLink to="/">Home</RouterLink>
-        <RouterLink to="/about">About</RouterLink>
-      </nav>
-    </div>
-  </header>
-
-  <RouterView />
+  <div>
+    <h1>Pinia</h1>
+    <h2>当前值是:{{ countStore.num }}--双倍:{{ countStore.doubleNum }}</h2>
+  </div>
 </template>
 
-<style scoped>
-header {
-  line-height: 1.5;
-  max-height: 100vh;
-}
-
-.logo {
-  display: block;
-  margin: 0 auto 2rem;
-}
-
-nav {
-  width: 100%;
-  font-size: 12px;
-  text-align: center;
-  margin-top: 2rem;
-}
-
-nav a.router-link-exact-active {
-  color: var(--color-text);
-}
-
-nav a.router-link-exact-active:hover {
-  background-color: transparent;
-}
-
-nav a {
-  display: inline-block;
-  padding: 0 1rem;
-  border-left: 1px solid var(--color-border);
-}
-
-nav a:first-of-type {
-  border: 0;
-}
-
-@media (min-width: 1024px) {
-  header {
-    display: flex;
-    place-items: center;
-    padding-right: calc(var(--section-gap) / 2);
-  }
-
-  .logo {
-    margin: 0 2rem 0 0;
-  }
-
-  header .wrapper {
-    display: flex;
-    place-items: flex-start;
-    flex-wrap: wrap;
-  }
-
-  nav {
-    text-align: left;
-    margin-left: -1rem;
-    font-size: 1rem;
+<script lang="ts" setup>
+import { ref, reactive } from "vue";
+import { useCountStore } from "./store/count";
+const countStore = useCountStore();
+console.log(countStore);
+let num = ref(0);
+num.value = countStore.num;
+</script>
 
-    padding: 1rem 0;
-    margin-top: 1rem;
-  }
-}
+<style lang="scss" scoped>
 </style>

20.vue3/project5/src/main.ts

@@ -1,4 +1,4 @@
-import './assets/main.css'
+// import './assets/main.css'
 
 import { createApp } from 'vue'
 import App from './App.vue'

20.vue3/project5/src/store/count.ts

@@ -0,0 +1,22 @@
+// 1.创建store
+import { defineStore } from 'pinia';
+
+// 定义一个抛出的Store
+export const useCountStore = defineStore('count1', {
+    // data
+    state() {
+        return {
+            num: 666
+        }
+    },
+    // computed:() => {}
+    getters: {
+        doubleNum: (state: any) => {
+            return state.num * 2
+        }
+    },
+    // methods
+    actions: {
+
+    }
+})