17.vant-ui 购物车

安装依赖

yarn add vant

引入

import vant from 'vant'
impott 'vant/lib/index.css'
Vue.use(vant)

<template>
  <div class="about">
    <h2>我的购物车</h2>
    <table>
      <thead>
        <tr>
          <th>选择</th>
          <th>商品</th>
          <th>数量</th>
          <th>价格</th>
          <th>小计</th>
          <td>操作</td>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td>
            <van-checkbox checked-color="#FF6700" v-model="checked"></van-checkbox>
          </td>
          <td>
            <img src="https://img.yzcdn.cn/vant/t-thirt.jpg" />
            <span>衣服</span>
          </td>
          <td>
            <van-stepper v-model="value" integer />
          </td>
          <td>
            <span>2220</span>
          </td>
           <td>
            <span>3520</span>
          </td>
          <td>
            <el-button type="danger">删除</el-button>
          </td>
        </tr>
      </tbody>
    </table>
    <van-submit-bar :price="3050" button-text="提交订单">
      <van-checkbox v-model="checAll">全选</van-checkbox>
    </van-submit-bar>
  </div>
</template>
<script>
export default {
  data() {
    return {
      checked: false,
      value: 1
    };
  }
};
</script>
<style scoped>
table >>> .van-checkbox {
  margin-left: 20px;
}
table {
  background: #fff;
  border-collapse: collapse;
  width: 100%;
  border: 1px solid #666;
  border-radius: 15px;
  margin: 0 auto;
  /* display: block; */
  text-align: center;
}
table img {
  width: 100px;
}
table th {
  text-align: center;
}
.about>.van-submit-bar{
  padding:0 20px;
}
.about>>>.van-checkbox__icon .van-icon {
    border-color:#FF6700 !important;
}
table >>> .van-stepper .van-stepper__input {
  width: 40px !important;
}
thead {
  background: #333;
  color: #fff;
  line-height: 50px;
}
tbody tr {
  line-height: 100px;
}
</style>

详细代码

 <div class="about">
    <h2 class="title">我的购物车</h2>
    <table>
      <thead>
        <tr>
          <th>选择</th>
          <th>商品</th>
          <th>数量</th>
          <th>价格</th>
          <th>小计</th>
          <td>操作</td>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item of cartList" :key="item.productId">
          <td>
            <van-checkbox checked-color="#FF6700" v-model="item.checked"></van-checkbox>
          </td>
          <td>
            <img :src="item.productImage" />
            <span>{{item.productName}}</span>
          </td>
          <td>
            <van-stepper v-model="item.productNum" integer />
          </td>
          <td>
            <span>{{item.salePrice}}</span>
          </td>
          <td>{{(item.productNum)*(item.salePrice)}}</td>
          <td>
            <el-button type="danger" @click="handleDelete(item.productId)">删除</el-button>
          </td>
        </tr>
      </tbody>
    </table>
    <van-submit-bar :price="sum" button-text="提交订单">
      <van-checkbox v-model="checkAll">全选</van-checkbox>
    </van-submit-bar>
  </div>

mounted(){
  this.$http("/users/cartList").then(res=>{
    this.cartList=res.data.result
  })
}
computed: {
    checkAll: {
      /* products值变化时会重新计算 */
      get() {
        return this.cartList.every(item => item.checked);
      },
      set(val) {
        //给checkbox赋值的时候触发
        this.cartList.forEach(item => (item.checked = val));
      }
    },
    sum() {
      /* sum的值会被缓存,如果依赖的数据没有变化不会重新执行 */s
      var total = 0;
      this.cartList.forEach(item => {
        if (item.checked) {
          total = item["productNum"] * item["salePrice"] + total;
        }
      });
      return total * 100;
    }
  },