vue编写简单的购物车功能
时间：2022-06-15 10:20:57 | 栏目：vue | 点击：次
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>