js 构造函数创建钟表

翻出来之前的一些效果,觉得这个时钟还挺好玩的就写出来共大家分享:

HTML代码如下:

<div id="box">
        
</div>

当前盒子用于插入钟表内容;

js代码如下:

<script>
        function clock(size,panBorderWidth){
            this.size = size || 400;
            this.pan;
            this.panBorderWidth = panBorderWidth || 5;
            this.sp;
            this.mp;
            this.hp;
        }
        clock.prototype = {
            init: function(){
                this.makepan();
                this.makeKeDu();
                this.makeSp();
                this.makeMp();
                this.makeHp();
                this.moveP();
                this.makeTxt();
            },
            makepan:function(){
                this.pan = $("<div>").css({            //创建表盘面
                     this.size,
                    height: this.size,
                    borderRadius: "50%",
                    border: this.panBorderWidth+"px solid #333",
                    background:"#9be5a7",
                    position:"relative",
                    margin: "50px auto 0"
                }).appendTo($("#box"));
                $("<div>").css({        //创建中心点
                    "20px",
                    height:"20px",
                    background:"#333",
                    borderRadius:"50%",
                    position:"absolute",
                    left:0,
                    top:0,
                    right:0,
                    bottom:0,
                    zIndex:1000,
                    margin:"auto"
                }).appendTo(this.pan)
            },
            makeKeDu: function(){
                var w,h;    //整点刻度 以及 普通刻度
                for(var i = 0;i<60;i++){
                    if(i%5 == 0){
                        w = 3;
                        h = 15;
                    }
                    else{
                        w = 1;
                        h = 10;
                    }
                    var sp = $("<span>").css({    //刻度的创建
                        display: "inline-block",
                         w + "px",
                        height: h + "px",
                        background: "#333",
                        position: "absolute",
                        left: 0,
                        right: 0,
                        margin: "0 auto",
                        transform: "rotate("+(6*i)+"deg)",
                        transformOrigin: "center 200px"        //设置旋转中心点
                    }).appendTo(this.pan)
                }
            },
            makeSp: function(){
                this.sp = $("<div>").css({
                     "1px",
                    height: "170px",
                    background:"#f00",
                    position: "absolute",
                    left: 0,
                    right: 0,
                    top: "30px",
                    zIndex: 1,
                    margin: "0 auto",
                    transformOrigin: "center bottom" 
                }).appendTo(this.pan);
            },
            makeMp: function(){
                this.mp = $("<div>").css({
                     "3px",
                    height: "120px",
                    background:"#f0f",
                    position: "absolute",
                    left: 0,
                    right: 0,
                    top: "80px",
                    zIndex: 1,
                    margin: "0 auto",
                    transformOrigin: "center bottom" 
                }).appendTo(this.pan);
            },
            makeHp: function(){
                this.hp = $("<div>").css({
                     "5px",
                    height: "80px",
                    background:"#ff0",
                    position: "absolute",
                    left: 0,
                    right: 0,
                    top: "120px",
                    zIndex: 1,
                    margin: "0 auto",
                    transformOrigin: "center bottom" 
                }).appendTo(this.pan);
            },
            moveP: function(){
                var that = this;
                setInterval(function(){
                    var date = new Date;
                    var s = date.getSeconds();
                    var m = date.getMinutes();
                    var h = date.getHours();
                    that.sp.css({
                        transform: "rotate("+(6*s)+"deg)"
                    });
                    that.mp.css({
                        transform:"rotate("+((m*6)+(s*6/60))+"deg)"            //m*6 分钟当前所在度数   s*0.1是一秒钟转6° 一分钟60s  所以秒针动一下  分针动6/60°
                    });
                    that.hp.css({                
                        transform:"rotate("+((h*30)+(m*6/12)+(s*6(60/12)))+"deg)"       //同理:h*30 为小时当前所在度数     分针转动一下是6° 表盘总计12小时    秒针动一下6° 相对应的时针转动即 s/60成分 /12成小时转动度数
                    });
                }, 1000)
            },
            makeTxt: function(){
                $("<div class='timer'>").css({        //创建中心点
                    "100px",
                    color:"#fff",
                    position:"absolute",
                    left:"150px",
                    top: "50px",
                    textAlign: "center",
                    zIndex: 0,
                    margin:"0 auto",
                    background: "#666",
                    boxShadow: "0 0 5px #a07474"
                }).appendTo(this.pan);
                function time(){
                    var date = new Date;
                    var s = date.getSeconds();
                    var miu = date.getMinutes();
                    var h = date.getHours();
                    var d = date.getDate();
                    var mon = date.getMonth() + 1;
                    var y = date.getFullYear();
                    if(mon < 10){
                        mon = "0" + mon
                    };
                    if(d < 10){
                        d = "0" + d
                    };
                    if(h < 10){
                        h = "0" + h
                    };
                    if(miu < 10){
                        miu = "0" + miu
                    };
                    if(s < 10){
                        s = "0" + s
                    };
                    var str = y + "-" + mon + "-" + d +" " + h + ":" + miu + ":" + s;
                    $(".timer").html(str);    
                }
                setInterval(time,1000);
                time();
            }
        }
        var clock = new clock();
        clock.init();
    </script>

上述 size 为 表盘的尺寸  panBorderWidth 为表盘边框  

var clock = new clock()             //这里未进行设置 即使用默认给出的 400 / 5

也可以自定义尺寸 例如  var clock = new clock ( 100 , 2 )

make pan   //即表盘制作

make kedu   //即表盘上的刻度制作

make sp  //即秒针制作

make mp   //即分针制作

make Hp   //即时针制作

moveP  //即 时针 分针 秒针 移动函数

make txt   //即 当前时间文字 制作

css样子可以根据需求自行调整。

实现简单效果如下:

 

原文地址:https://www.cnblogs.com/CooLLYP/p/7371868.html