vue里面如何让v-for循环出来的列表里面的列表click事件只对当前列表有效

<li @click="show">
    <span>1</span>
</li>

<li @click="show">
     <span>1</span>
</li>

<li @click="show">
     <span>1</span>
</li>

li点击只让当前的 li 下面的span 隐藏

<div id="app">
  <ul>
    <li v-for="list in lists" @click="show($index)">
      <span v-show="$index !== i">{{ list }}</span>
    </li>
  </ul>
</div>
<script>
new Vue({
  el: ‘#app‘,
  data: {
    lists: [1, 1, 1],
    i: -1 
  },
  methods: {
    show (index) {
      this.i = index
    }
  }
})
</script>

<ul id="app">
  <li v-for=‘item in items‘ @click="toggle(item)">
    <span v-if=‘item.show‘>{{item.content}}</span>
  </li>
</ul>

new Vue({
  el: ‘#app‘,
  data: function() {
    return {
      items: [{
        content: ‘1 item‘,
        show: true
      }, {
        content: ‘2 item‘,
        show: true
      }, {
        content: ‘3 item‘,
        show: true
      }]
    }
  },
  methods: {
    toggle: function(item) {
            item.show = !item.show;
    }
  }
})