vue简单实现九宫格抽奖

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
    <title>九宫格抽奖</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }

        .box {
            position: relative;
            width: 400px;
            height: 400px;
            margin: auto;
        }

        .draw {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100px;
            height: 100px;
            background: chocolate;
            text-align: center;
            line-height: 100px;
            color: #fff;
            cursor: pointer;
        }

        .row {
            position: absolute;
            width: 100px;
            height: 100px;
            line-height: 100px;
            background: cadetblue;
            color: #fff;
            text-align: center;
        }

        .box .row:nth-child(1) {
            top: 0;
            left: 0;
        }

        .box .row:nth-child(2) {
            top: 0;
            left: 50%;
            transform: translate(-50%, 0);
        }

        .box .row:nth-child(3) {
            top: 0;
            right: 0;
        }

        .box .row:nth-child(4) {
            top: 50%;
            right: 0;
            transform: translate(0, -50%);
        }

        .box .row:nth-child(5) {
            bottom: 0;
            right: 0;
        }

        .box .row:nth-child(6) {
            bottom: 0;
            right: 50%;
            transform: translate(50%, 0);
        }

        .box .row:nth-child(7) {
            bottom: 0;
            left: 0;
        }

        .box .row:nth-child(8) {
            top: 50%;
            left: 0;
            transform: translate(0, -50%);
        }

        .active {
            background: lightseagreen !important;
        }
    </style>
</head>

<body>
    <div id="Vue">
        <div class="box">
            <div class="row" :class="select == index ? 'active' : ''" v-for="(item,index) in list" :key="index">
                {{item.name}}</div>
            <div class="draw" @click="startDraw()">抽奖</div>
        </div>
    </div>
</body>
<script src="https://cdn.suoluomei.com/common/js2.0/vue/v2.5.16/vue.js"></script>
<script>
    new Vue({
        el: "#Vue",
        data: {
            list: [
                {
                    name: "手机"
                },
                {
                    name: "平板"
                },
                {
                    name: "电磁炉"
                },
                {
                    name: "洗衣机"
                },
                {
                    name: "衣柜"
                },
                {
                    name: "电脑"
                },
                {
                    name: "电视"
                },
                {
                    name: "冰箱"
                },
            ],
            flag: true,//是否开始抽奖
            select: 0,//页面对应抽奖下标
            timer: "",
            count: 0
        },
        methods: {
            startDraw() {
                if (this.flag == true) {
                    this.flag = false
                    this.timer = setInterval(() => {
                        this.spinPrize()
                    }, 100)
                }
            },

            spinPrize() {
                var spin = 3 //旋转圈数
                var win = 5 //中奖产品 0-7
                this.select += 1
                if (this.select > 7 && this.count != spin) {
                    this.select = 0
                    this.count += 1
                }
                if (this.select == win && this.count == spin) {
                    clearInterval(this.timer)
                    this.flag = true
                    this.count = 0
                    console.log("中奖产品为:" + this.list[this.select].name)
                }
            },
        }
    })
</script>

</html>