vue编写简单的购物车功能

Z时代
2024-01-10
分类：IT

使用vue写出简单的购物车，供大家参考，具体内容如下

代码：


// An highlighted block
<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Document</title>
 <style>
  .cl{
   border: 1px solid black;
   width: 300px;
   margin: 30px;
   padding: 15px;
  }
 </style>
</head>
<body>
 <div id="app">
  <div class="cl" v-for="(item,index) in items">
   <h4>{{item.sname}}</h4>
   <button @click="item.sum==0?item.sum==0:item.sum--">-</button>
   <span>{{item.sum}}</span>
   <button @click="item.sum++">+</button>
   <span>{{item.sprice}}元/斤</span>
  </div>
  <table>
   <tr>
    <th>选择</th>
    <th>商品名</th>
    <th>商品数量</th>
    <th>商品价格</th>
   </tr>
   <tr v-for="(item,index) in items">
    <td><input type="checkbox" :checked="item.isSelect" @click="item.isSelect=!item.isSelect"></td>
    <td>{{item.sname}}</td>
    <td>{{item.sum}}</td>
    <td>{{item.sprice*item.sum}}</td>
   </tr>
   <tr>
    <td><input type="checkbox" @click="selectProduct(isSelectAll)" :checked="isSelectAll">全选</tf>
    <td>合计</tf>
    <td>{{total.totalNum}}</tf>
    <td>{{total.totalPrice}}</tf>
   </tr>
  </table>
 </div>
 <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
 <script>
  new Vue({
   el:'#app',
   data:{
    items:[
     {
      'sname':'苹果',
      'sum':1,
      'sprice':'10',
     },
     {
      'sname':'香蕉',
      'sum':1,
      'sprice':'12',
     },
     {
      'sname':'橘子',
      'sum':1,
      'sprice':'8',
     },
    ]
   },
   methods:{
    selectProduct:function(_isSelect){
     for(var i=0 ,len=this.items.length;i<len;i++){
      this.items[i].isSelect=!_isSelect;
     }
    },
   },
   computed:{
    isSelectAll:function(){
     return this.items.every(function(val){return val.isSelect})
    },
     total:function(){
     var prolist = this.items.filter(function(val){return val.isSelect});
     totalpri = 0;
     totalnum = 0;
     for (var i = 0;i<prolist.length;i++){
      totalpri+=prolist[i].sprice*prolist[i].sum;
      totalnum+=prolist[i].sum
     }
     return{totalNum:totalnum,totalPrice:totalpri}
    }
   },
   mounted:function(){
    var _this=this;
    this.items.map(function(item){
     _this.$set(item,'isSelect',false)
    })
   }
  })
 </script>
</body>
</html>