1 App.vue

<template>
  <div id="app">
    <input type="text" v-model="thing" @keydown="keyhandle($event)"/><button @click="add()">新增</button>

<h2>待办列表</h2>
<ul>
  <li v-for="(item,key) in list" v-if="!item.status">
    <input type="checkbox" v-model="item.status" @change="save()"/>{{item.name}}
    <button @click="del(key)">删除</button>
  </li>
</ul>
<br>
<hr>
<br>
<h2>已完成列表</h2>
<ul>
  <li v-for="(item,key) in list" v-if="item.status">
    <input type="checkbox" v-model="item.status" @change="save()"/>{{item.name}}
    <button @click="del(key)">删除</button>
  </li>
</ul>
  </div>
</template>

<script>
import store from "./store.js";
export default {
  name: "app",
  data() {
    return {
      thing: "thing1",
      list:[]
    }
  },
  methods:{
    add(){
      var a = {"name":this.thing,"status":false}
      this.list.push(a);
      store.set("list",this.list);
      this.thing="";
    },

    del(k){
      this.list.splice(k,1);
      store.set("list",this.list);
    },
    keyhandle(e){
      //console.log(e.keyCode);
      if(e.keyCode==13){
        this.add();
      }
    },
    save(){
      store.set("list",this.list);
    }
  },
  mounted(){

    if(store.get("list")){
      this.list = store.get("list");
      console.log(this.list);
    }
  },
};
</script>

<style>

</style>

2 store.js

var store={
    set(key,value){
        localStorage.setItem(key,JSON.stringify(value));
    },
    get(key){
        return JSON.parse(localStorage.getItem(key));
    },
    remove(key){
        localStorage.removeItem(key);
    }
}

export default store;