VUE实现购物结算功能

代码

 <div id="app">
      <div v-if="list.length">
        <table>
          <thead>
            <tr>
              <th>th>
              <th>书籍名称th>
              <th>出版日期th>
              <th>价格th>
              <th>购买数量th>
              <th>操作th>
            tr>
          thead>
          <tbody>
            <tr v-for="(item,index) in list">
              <td>{{item.id}}td>
              <td>{{item.name}}td>
              <td>{{item.date}}td>
              <td>{{item.price|shouwPrice}}td>
              <td>
                <button @click="jian(index)" v-bind:disabled="item.count <=1">-button>
                {{item.count}}
                <button @click="jia(index)">+button>
              td>
              <td><button @click="yichu">移除button>td>
            tr>
          tbody>
        table>

        <h2>总价格{{totalPrice|shouwPrice}}h2>
      div>
      <h2 v-else>购物车为空h2>
    div>

• 逻辑

        methods: {
          jian(index) {
            this.list[index].count--

          },
          jia(index) {
            this.list[index].count++

          },
          yichu(index) {
            this.list.splice(index, 1)
          }
        },
        filters: {
          shouwPrice(price) {
            return '￥' + price.toFixed(2)
          }
        },
        computed: {
          totalPrice() {
            let totalPrice = 0
            for (let i = 0; i < this.list.length; i++) {
              totalPrice += this.list[i].price * this.list[i].count
            }
            return totalPrice
          }
        }

• data里面定义四个书籍的各个资料

data: {
          list: [{
              id: 1,
              name: '三国演义',
              date: '2009-6',
              price: 85.00,
              count: 1
            },
      }

效果