vuex的使用

Posted 2020-10-02 layfork

1.先安装npm install vuex --save-dev 

2.在src下建立文件夹vuex，在vuex里面写store.js

/**
 * Created by ywz on 2017/8/12.
 */
import Vue from ‘vue‘
import Vuex from ‘vuex‘

Vue.use(Vuex)

const store = new Vuex.Store({
  // 定义状态
  state: {
    author: ‘Wise Wrong‘
  },
  mutations:{
    newAuthor (state,msg){
      state.author=msg;
    }
  }
})

export default store

第三步 在main.js中

import Vuex from ‘vuex‘

Vue.use(Vuex);

/* eslint-disable no-new */
new Vue({
  el: ‘#app‘,
  router,
  store,
  render: h => h(App)
});

第四部显示在页面

<div>自拍照{{author}}</div>

computed: {
    author()
    {
        return this.$store.state.author;
    }
}

第5步 设置修改

methods: {
    setAuthor(){
      //this.$store.state.author=this.user;
      this.$store.commit(‘newAuthor‘,32223);
    }
},