js九宫格抽奖

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>九宫格抽奖</title>
    <style>
        .grid {
            display: grid;
            grid-template-columns: repeat(3, 100px);
            grid-gap: 10px;
        }
        .cell {
            width: 100px;
            height: 100px;
            background-color: #f0f0f0;
            text-align: center;
            line-height: 100px;
            cursor: pointer;
        }
    </style>
</head>
<body>
<div class="grid">
    <!-- 九个格子 -->
    <div class="cell" v-for="(item, index) in items" :key="index">{{ item }}</div>
</div>
<button @click="startLottery">开始抽奖</button>

<script>
    const items = ['奖品1', '奖品2', '奖品3', '奖品4', '奖品5', '奖品6', '谢谢参与', '谢谢参与', '谢谢参与'];
    let spinning = false;

    function startLottery() {
        if (spinning) return;
        spinning = true;
        const cells = document.querySelectorAll('.cell');
        let randomIndex = Math.floor(Math.random() * items.length);
        let spinCount = 0;

        function spin() {
            cells.forEach((cell, index) => {
                cell.textContent = items[randomIndex];
                randomIndex = (randomIndex + 1) % items.length;
            });
            spinCount++;
            if (spinCount < 10) { // 控制旋转圈数
                setTimeout(spin, 100);
            } else {
                spinning = false;
                alert(`恭喜你获得${items[randomIndex]}`);
            }
        }

        spin();
    }
</script>
</body>
</html>