基本信息
源码名称:html5 转盘抽奖实例源码
源码大小:0.15M
文件格式:.rar
开发语言:CSS
更新时间:2019-01-16
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   源码介绍


<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>转盘抽奖</title>
	<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="IE=edeg">
	<!-- 浏览器兼容版本 -->

		
		<style>
            * {
                margin: 0;
                padding: 0;
            }
            div{
            	 
            }
            .rotate_con {
                margin: 50px auto;
                width: 320px;
                height: 320px;
                
            }
            
            .rotate_row {
                display: flex;
                display: -webkit-flex;
                height: 33.3333333%;
            }
            
            .rotate_item {
                flex: 0 0 33.3333333%;
                -webkit-flex: 0 0 33.3333333%;
                line-height: 106.666666px;
                text-align: center;
                background: yellow;
                padding: 1px;
                border: 1px solid #fff;
                box-sizing: border-box;
            }
            
            .item_start {
                position: relative;
                background-color: #FF5E5E;
                color: #FFFFFF;
                font-weight: bold;
                cursor: pointer;
                border-radius: 50%;
            }
            
            .item_start:active {
                background: #ED745B;
            }
            
            .rotate {
                position: absolute;
                width: 5px;
                height: 106px;
                top: -53px;
                left: 53px;
                background: yellowgreen;
                transform: rotateZ(0deg);
                transform-origin: left bottom;
                -webkit-transform-origin: left bottom;
                transition: all 1.5s cubic-bezier(0.25, 0.1, 0.25, 1);
            }
            
            .item_active {
                border-color: red;
            }
        </style>
</head>
<body>

	<div class="rotate_con">
            <div class="rotate_row">
                <div class="rotate_item">
                    RMB100
                </div>
                <div class="rotate_item">
                    流量100M
                </div>
                <div class="rotate_item">
                    谢谢参与
                </div>
            </div>
            <div class="rotate_row">
                <div class="rotate_item">
                    再接再厉
                </div>
                <div class="rotate_item item_start" id="start">
                    开始
                    <div class="rotate" id="rotate_zhen">

                    </div>
                </div>
                <div class="rotate_item">
                    RMB2
                </div>
            </div>
            <div class="rotate_row">
                <div class="rotate_item">
                    RMB100
                </div>
                <div class="rotate_item">
                    谢谢参与
                </div>
                <div class="rotate_item">
                    流量100M
                </div>
            </div>
        </div>

	<script>
		//获取对象
        var getid = function(id) {
               return document.getElementById(id);
           };
           //按照旋转顺序的数组
           var context = ["流量100M", "谢谢参与", "RMB2", "流量100M", "谢谢参与", "RMB100", "再接再厉", "RMB100"];
           var deg = 45, //旋转的默认角度360/8
               numdeg = 0, //记录上次旋转停止时候的角度
               num = 0, //记录旋转后数组的位置
                isRotated = false; //判断是否在进行中
           window.onload = function() {
               var zhen = getid("rotate_zhen");
               getid("start").addEventListener('click', function() {
                   if(isRotated) return; //如果正在旋转退出程序
                   isRotated = true;
                   var index = Math.floor(Math.random() * 8); //得到0-7随机数
                   num = index   num; //得到本次位置
                   numdeg  = index * deg   Math.floor(Math.random() * 3   1) * 360;
                    zhen.style.webkitTransform = zhen.style.transform = "rotateZ("   numdeg   "deg)";
                   setTimeout(function() {
                       if(num >= 8) { //如果数组位置大于7就重新开始
                          num = num % 8;
                       }
                      alert(context[num]);
                       isRotated = false; //旋转改为false说明没有旋转
                 }, 1700)
               }, false)
           }
	</script>
</body>
</html>