Vue实现简单的列表金额计算效果（简易购物车）

使用技术：v-for v-bind v-on实现简单的列表 选中绑定操作

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
        <style>
            .green {
                background: greenyellow;
                border-radius: 5px;
            }
            .pink {
                background: deeppink;
                border-radius: 5px;
            }
            #box {
                border-radius: 5px;
                font-family: 黑体;
                width: 300px;
                height: 400px;
                background: cadetblue;
            }
            .item {
                text-align: center;
                width: 240px;
                height: 40px;
                margin-top: 10px;
                line-height: 40px;
            }
        </style>
    </head>
    <body>
        <div id="box" align="center">
            <h1 style="padding-top: 20px;">Services</h1>
            <div class="item s1" v-for="(item,index) in cart" v-on:click="ok(index)" v-bind:class="{pink:!item.bol, green:item.bol}">
                <p>{{ item.name }} ------ {{ item.price }}--{{ item.bol }}</p>
            </div>
            <hr>
            <p style="float: left;margin-left: 50px;">Total:</p>
            <p style="float: right;margin-right: 50px;">{{ total }}</p>
        </div>
    </body>
</html>
<script>
    var vm = new Vue({
        el: '#box',
        data: {
            cart: [{
                    name: 'Computer',
                    price: 5000,
                    bol: false
                },
                {
                    name: 'Keybord',
                    price: 200,
                    bol: false
                },
                {
                    name: 'Mouse',
                    price: 20,
                    bol: false
                },
                {
                    name: 'Disk',
                    price: 2000,
                    bol: false
                },
            ],
            total: 0
        },
        methods: {
            ok: function(index) {
                this.cart[index].bol = !this.cart[index].bol
                this.total = 0
                for (var i = 0; i < this.cart.length; i++) {
                    if (this.cart[i].bol)
                        this.total += this.cart[i].price
                }
            }
        }
    })
</script>