# Vuex 状态管理

目录结构

```bash
├── store
│   ├── modules
│   │   └── app.js
│   ├── index.js
│   ├── getters.js
```

`main.js` 引入

```javascript
import Vue from "vue";
import App from "./App.vue";
import store from "./store";
new Vue({
  el: "#app",
  router,
  store,
  render: (h) => h(App),
});
```

使用

```html
<script>
  import { mapGetters } from "vuex";
  export default {
    computed: {
      ...mapGetters(["userName"]),
    },

    methods: {
      // Action 通过 store.dispatch 方法触发
      doDispatch() {
        this.$store.dispatch(
          "setUserName",
          "真乖，赶紧关注公众号，组织都在等你~"
        );
      },
    },
  };
</script>
```