<template>
  <div class="slider">
    <div class="wrapbox">
      <div class="item" v-for="(item, index) in items" style="">{{item.title}}</div>
    </div>
    <div class="status">
      <span v-for="(item, index) in items" v-bind:class="index == count "></span>
    </div>
    <div class="prev-btn btn" @click="prev()"><</div>
    <div class="next-btn btn" @click="next()"</div>
  </div>
</template>
<script>
  export default {
    name: 'slider',
    data (){
      return {
        count: 0,
        items:[{
          name:"1",
          id:1,
          title:"我是图1的内容"
        },{
          name:"2",
          id:2,
          title:"我是图2的内容"
        },{
          name:"3",
          id:3,
          title:"我是图3的内容"
        },{
          name:"4",
          id:4,
          title:"我是图4的内容"
        }]
      }
    },
    components: { },
    methods: {
      prev () {
        console.log(this.count);
        if(this.count > 0){
          this.count--;
          document.querySelector(".wrapbox").style.webkitTransform = "translateX(-" + (this.count * 400) + "px)"; 
        }else{
          this.count = 0;
        }
      },
      next () {
        console.log(this.count);
        if(this.count < 3){
          this.count++;
          document.querySelector(".wrapbox").style.webkitTransform = "translateX(-" + (this.count * 400) + "px)"; 
        }else{
          this.count = 3;
        }

      }
    },
    created () {

    }
  }
</script>
<style scoped>
  *{margin:0 auto;padding:0;font-family:"微软雅黑";}

  .slider{
    position:relative;
    height:200px;
    width:400px;
    margin:50px auto;
    overflow:hidden;
  }
  .slider .wrapbox{
    width:1600px;
    height:200px;
    transition:all 1.5s;
  }
  .slider .status{
    position:absolute;
    top:170px;
    height:20px;
    width:400px;
    text-align:center;
  }
  .slider .status span{
    display:inline-block;
    height:20px;
    width:20px;
    margin:0 10px;
    background:#eee;
    border-radius:10px;
  }
  .slider .status span.active{
    background:#352929;
  }
  .slider .wrapbox .item{
    float:left;
    height:200px;
    width:400px;
    line-height:200px;
    text-align:Center;
    color:#fff;
    font-size:25px;
    background:red;
  }
  .slider .wrapbox .item:nth-of-type(2){
    background:blue;
  }
  .slider .wrapbox .item:nth-of-type(3){
    background:yellow;
  }
  .slider .wrapbox .item:nth-of-type(4){
    background:green;
  }
  .slider .btn{
    position:absolute;
    top:50%;
    height:40px;
    width:20px;
    line-height:40px;
    color:#fff;
    text-align:center;
    background:rgba(10, 10, 10, .85);
    transform:translateY(-50%);
    cursor:pointer;
  }
  .slider .next-btn{
    right:0;
  }
</style>