vue如何实现简单的购物车

今天小编给大家分享一下vue如何实现简单的购物车的相关知识点，内容详细，逻辑清晰，相信大部分人都还太了解这方面的知识，所以分享这篇文章给大家参考一下，希望大家阅读完这篇文章后有所收获，下面我们一起来了解一下吧。

效果图如下

<template>
<div class="head">
    <meta charset="UTF-8">
    <title>我的购物车-品优购</title>
    <meta name="description" content="品优购JD.COM-专业的综合网上购物商城,销售家电、数码通讯、电脑、家居百货、服装服饰、母婴、图书、食品等数万个品牌优质商品.便捷、诚信的服务，为您提供愉悦的网上购物体验!" />
    <meta name="Keywords" content="网上购物,网上商城,手机,笔记本,电脑,MP3,CD,VCD,DV,相机,数码,配件,手表,存储卡,品优购" />
<!--    &lt;!&ndash; 引入facicon.ico网页图标 &ndash;&gt;-->
<!--    <link rel="shortcut icon" href="favicon.ico" rel="external nofollow"  type="image/x-icon" />-->
    <!-- 引入css 初始化的css 文件 -->
    <link rel="stylesheet" href="src/assets/carStyle/base.css" rel="external nofollow" >
    <!-- 引入公共样式的css 文件 -->
    <link rel="stylesheet" href="src/assets/carStyle/common.css" rel="external nofollow" >
    <!-- 引入car css -->
    <link rel="stylesheet" href="src/assets/carStyle/car.css" rel="external nofollow" >
</div>
  <div class="body">
    <div class="car-header">
      <div class="w">
        <div class="car-logo">
          <img src="src/assets/images/logo.png" alt=""> <b>购物车</b>
        </div>
      </div>
    </div>
    <div class="c-container">
      <div class="w">
        <div class="cart-filter-bar">
          <em>全部商品</em>
        </div>
        <!-- 购物车主要核心区域 -->
        <div class="cart-warp">
          <!-- 头部全选模块 -->
          <div class="cart-thead">
            <div class="t-checkbox">
              <input type="checkbox" name="" id="" class="checkall"> 全选
            </div>
            <div class="t-goods">商品</div>
            <div class="t-price">单价</div>
            <div class="t-num">数量</div>
            <div class="t-sum">小计</div>
            <div class="t-action">操作</div>
          </div>
          <!-- 商品详细模块 -->
          <div class="cart-item-list" v-for="(good,index) in cartList">

            <div class="cart-item">
              <div class="p-checkbox">
                <input type="checkbox" v-model="good.isSelected" @click="oneSelected(index)">
              </div>
              <div class="p-goods">
                <div class="p-img">
                  <img v-bind:src=good.imgUrl alt="">
                </div>
                <div class="p-msg">{{good.message}}</div>
              </div>
              <div class="p-price">{{good.PriceItem}}</div>
              <div class="p-num">
                <div class="quantity-form">
                  <el-button class="increment" @click="changeDe(index)">-</el-button>
                  <input type="text" class="itxt" v-model=good.ItemNum placeholder="1">
                  <el-button class="increment" @click="changeIn(index)">+</el-button>
                </div>
              </div>
              <div class="p-sum">{{good.PriceSum}}</div>
              <div class="p-action">
                <el-button type="danger" @click="DeleteItem(id)">删除</el-button>
              </div>
            </div>
          </div>

          <!-- 结算模块 -->
          <div class="cart-floatbar">
            <div class="select-all">
              <input type="checkbox" @click="allCheck" v-model="allSelected">全选
            </div>
            <div class="operation">
              <a class="remove-batch" @click="DeleteSelected"> 删除选中的商品</a>
              <a class="clear-all" @click="DeleteAll">清理购物车</a>
            </div>
            <div class="toolbar-right">
              <div class="amount-sum">已经选<em>{{NumSum}}</em>件商品</div>
              <div class="price-sum">总价： <em>{{totalPrice}}</em></div>
              <div class="btn-area">去结算</div>
            </div>
          </div>
        </div>
      </div>

    </div>
  </div>
</template>


<script>
import { defineComponent } from 'vue'
export default defineComponent({
  data(){
    return{
      allSelected:false,
      cartList:[
        {
          imgUrl:'src/assets/upload/p1.jpg',
          message:'【5本26.8元】经典儿童文学彩图青少版八十天环游地球中学生语文教学大纲',
          PriceItem: 12.6,
          PriceSum: 12.6,
          ItemNum: 1,
          isSelected:false
        },
        {
          imgUrl:'src/assets/upload/p2.jpg',
          message:'【2000张贴纸】贴纸书 3-6岁 贴画儿童 贴画书全套12册 贴画 贴纸儿童 汽',
          PriceItem: 24.8,
          PriceSum: 24.8,
          ItemNum: 1,
          isSelected:false
        },
        {
          imgUrl:'src/assets/upload/p3.jpg',
          message:'唐诗三百首+成语故事全2册 一年级课外书 精装注音儿童版 小学生二三年级课外阅读书籍',
          PriceItem: 29.8,
          PriceSum: 29.8,
          ItemNum: 1,
          isSelected:false
        },
      ]
    }
  },
  methods:{
     changeIn(id){
       let n=this.cartList[id].ItemNum;
       // console.log(n);
       this.cartList[id].ItemNum++;
       this.cartList[id].PriceSum = this.cartList[id].ItemNum * this.cartList[id].PriceItem;
     },
    changeDe(id){
       if(this.cartList[id].ItemNum === 0)alert("该商品已经清0！");
       else {
         this.cartList[id].ItemNum--;
         this.cartList[id].PriceSum = this.cartList[id].ItemNum * this.cartList[id].PriceItem;
       }
    },
    DeleteItem(id){
       // console.log(this.$parent);
       // console.log(this.$children);
      this.cartList.splice(id,1);
    },
    allCheck(){
       // console.log(this.allSelected);
     this.cartList.forEach((item)=>{
       // console.log(this.allSelected);
       // console.log(this.cartList);
       item.isSelected=!this.allSelected;
     })
    },
    DeleteSelected(){
       for(let i=0;i<this.cartList.length;i++){
         if(this.cartList[i].isSelected===true){
           this.cartList.splice(i,1);
         }
       }
    },
    DeleteAll(){
      this.cartList.splice(0,this.cartList.length);
    },
    oneSelected(id){
       if(this.cartList[id].isSelected===false)
         this.cartList[id].isSelected=true;
       else
         this.cartList[id].isSelected=false;

      let n=0;
      for(let i=0;i<this.cartList.length;i++){
        if(this.cartList[i].isSelected===true)
          n++;
      }
      if(n===this.cartList.length)this.allSelected=true;
      else this.allSelected=false;
    }
  },
  computed:{
    NumSum() {
      let num=0;
      this.cartList.forEach((item)=>{
        if(item.isSelected===true)
        num++;
      })
      return num;
    },
    totalPrice() {
      let totalp=0;
      this.cartList.forEach((item)=>{
        if(item.isSelected===true)
          totalp += item.PriceSum;
      })
      return totalp;
    },
  }
})

</script>
<style lang="scss" scoped>

</style>

以上就是“vue如何实现简单的购物车”这篇文章的所有内容，感谢各位的阅读！相信大家阅读完这篇文章都有很大的收获，小编每天都会为大家更新不同的知识，如果还想学习更多的知识，请关注亿速云行业资讯频道。