2018.6.5今天跟着视频做了一个提交Todolist

<template>
<div>
<div>
<input type="text" v-model="ac"/>
<button @click="bb">提交</button>
</div>
<div>
<li v-for="a in ss" :key="a">{{a}}</li>
</div>
</div>
</template>

<script>

export default {
  name: 'HelloWorld',
  data () {
    return {
      ss: [],
      ac:''
    }
  },
  methods:{
    bb:function() {
      this.ss.push(this.ac)
      this.ac=' '  
    }
  }
}

</script>