web实现时钟效果

 

 

纯原生开发时钟效果，话不多说直接上代码。

HTML标签部分

<div class="cricles">
        <div class="pointls">
            <!-- 表盘内长刻度 -->
        </div>
        <div class="pointM">
            <!-- 表盘内短刻度 -->
        </div>
        <div class="poniters">
            <div class="point_ho">
                <!-- 时针 -->
            </div>
            <div class="point_min">
                <!-- 分针 -->
            </div>
            <div class="point_sec">
                <!-- 秒针 -->
            </div>
            <span></span>
        </div>
    </div>

css样式部分

<style>
        .cricles {
            width: 300px;
            height: 300px;
            background-color: aqua;
            border-radius: 100%;
            border: 2px solid yellow;
            margin: 100px auto;
            position: relative;
        }
        
        .pointL {
            background-color: red;
            height: 40px;
            width: 5px;
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            top: 0;
            margin: auto;
        }
        
        .pointS {
            background-color: black;
            height: 20px;
            width: 5px;
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            top: 0;
            margin: auto;
        }
        
        .poniters {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            top: 0;
            margin: auto;
            height: 10px;
            width: 10px;
            /* yellow; */
        }
        
        .poniters div {
            left: 0;
            right: 0;
            bottom: 4px;
            margin: auto;
            position: absolute;
            background-color: tomato;
            height: 60px;
            transform-origin: center bottom;
            width: 4px;
        }
        
        span {
            width: 15px;
            height: 15px;
            display: block;
            position: absolute;
            left: -5px;
            right: 0;
            bottom: -5px;
            box-shadow: 0 0 20px black;
            top: 0;
            margin: auto;
            border-radius: 50%;
            background-color: blueviolet;
        }
    </style>

js部分

<script>
        //设置表盘大针
        setBigTime();
        setSmallTime();
        setTimePoint();
        setInterval(function() {
            setTimePoint();
        }, 1000);

        function setBigTime() {
            var olis = "";
            var pointList = document.querySelector(".pointls");
            for (var i = 0; i < 12; i++) {
                olis += `<div class="pointL"></div>`;
            }
            pointList.innerHTML = olis;
            var pointLs = document.querySelectorAll(".pointL");
            // for
            pointLs.forEach(function(v, k) {
                v.style.transform = ` rotate(${30*k}deg) translateY(130px)`;
            });
        }

        //设置表盘小针
        function setSmallTime() {
            var olis = "";
            var pointList = document.querySelector(".pointM");
            for (var i = 0; i < 60; i++) {
                olis += `<div class="pointS"></div>`;
            }
            pointList.innerHTML = olis;
            var pointLs = document.querySelectorAll(".pointS");
            // for
            pointLs.forEach(function(v, k) {
                if ((6 * k) % 30 === 0) {
                    v.style.display = "none";
                }
                v.style.transform = ` rotate(${6*k}deg) translateY(140px)`;
            });
        }

        function setTimePoint() {
            var d = new Date();

            var housePoint = document.querySelector(".point_ho");
            housePoint.style.height = "40px";
            housePoint.style.background = "blue";
            housePoint.style.transform = `rotate(${30*d.getHours()}deg)`;

            var minPoint = document.querySelector(".point_min");
            minPoint.style.height = "60px";
            minPoint.style.background = "black";
            minPoint.style.transform = `rotate(${6*d.getMinutes()}deg)`;

            var secPoint = document.querySelector(".point_sec");
            secPoint.style.height = "80px";
            secPoint.style.background = "red";
            secPoint.style.transform = `rotate(${6*d.getSeconds()}deg)`;
        }
    </script>