简易的增删改

Vue购物车应用
最新推荐文章于 2025-12-12 12:36:47 发布
原创最新推荐文章于 2025-12-12 12:36:47 发布 · 149 阅读
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CC 4.0 BY-SA版权
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#vue.js
还是老样子直接上代码
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script>
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <style>
        #ssl{
            width: 1200px;
            height: 100%;
            margin: 0 auto;
        }
        table td,table th{
            text-align: center;
        }
    </style>
</head>
<body>
    <div id="ssl">
        <form role="form">
            <div class="form-group">
                <label for="name">商品名称:</label>
                <input type="text" class="form-control" placeholder="请输入商品名称" v-model="name">
            </div>
            <div class="form-group">
                <label for="price">商品价钱:</label>
                <input type="text" class="form-control" placeholder="请输入商品价格" v-model.number.trim="price">
            </div>
            <div class="form-group">
                <label for="number">商品数量:</label>
                <input type="text" class="form-control" placeholder="请输入商品数量" v-model.number.trim="number">
            </div>
            <button type="button" class="btn btn-primary" @click="add()">提交</button>
        </form>
        <!--  -->
        <table class="table table-bordered">
            <caption>边框表格布局</caption>
            <thead>
                <tr>
                    <th>商品名称</th>
                    <th>商品价钱</th>
                    <th>商品数量</th>
                    <th>小计</th>
                    <th>操作</th>
                </tr>
            </thead>
            <tbody>
                <tr v-for="(e,i) in list" :key="i">
                    <td>{{e.name}}</td>
                    <td>{{e.name}}</td>
                    <td>
                        <button type="button" class="btn btn-info" @click="jia(i)">+</button>
                        <span>{{e.number}}</span>
                        <button type="button" class="btn btn-info" @click="jian(i)">-</button>
                    </td>
                    <td>{{parseInt(e.number*e.price)}}</td>
                    <td>
                        <button type="button" class="btn btn-danger" @click="del(i)">删除</button>
                        <button type="button" class="btn btn-warning" @click="set(i)">修改</button>
                    </td>
                </tr>
            </tbody>
        </table>
        <!--  -->
        <form role="form" v-show="flag">
            <div class="form-group">
                <label for="name">商品名称:</label>
                <input type="text" class="form-control" placeholder="请输入商品名称" v-model="names">
            </div>
            <div class="form-group">
                <label for="price">商品价钱:</label>
                <input type="text" class="form-control" placeholder="请输入商品价格" v-model.number.trim="prices">
            </div>
            <div class="form-group">
                <label for="number">商品数量:</label>
                <input type="text" class="form-control" placeholder="请输入商品数量" v-model.number.trim="numbers">
            </div>
            <button type="button" class="btn btn-primary" @click="adds()">提交</button>
        </form>
    </div>
</body>
<script>
    new Vue({
        el:"#ssl",
        data:{
            name:"",
            price:"",
            number:"",
            names: "",
            prices: "",
            numbers: "",
            list:[],
            flag:false
        },
        methods:{
            add()
            {
                if(this.name==""||this.price==""||this.number=="")
                {
                    alert("输入的信息不能为空");
                }
                else
                {
                    let obj={
                        name:this.name,
                        price:this.price,
                        number:this.number
                    }
                    this.list.push(obj);
                    this.name = this.price = this.number = "";
                }
            },
            //加
            jia(i)
            {
                this.list[i].number++;
                if(this.list[i].number>10)
                {
                    alert("最多只能买十件商品");
                    this.list[i].number=10;
                    return false;
                }
            },
            //减
            jian(i) {
                this.list[i].number--;
                if(this.list[i].number<=0)
                {
                    if (confirm("是否移除此商品")) 
                    {
                        this.list.splice(i,1);
                    }
                    else
                    {
                        this.list[i].number=1;
                        return false;
                    }
                }
            },
            //删除
            del(i)
            {
                this.list.splice(i,1);
            },
            //修改
            set(i)
            {
                data=this.list[i];
                this.flag=true;
                this.names=data.name;
                this.prices=data.price;
                this.numbers=data.number;
            },
            adds()
            {
                this.flag=false;
                data.name=this.names;
                data.price = this.prices;
                data.number = this.numbers;
            }
        }
    })
</script>
</html>
在这里插入图片描述
明天写查询数据~~~