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准备好需要用到的图。

新建html文档。

书写hmtl代码。

<div id="box" class="box">

 <div class="outer KinerLottery KinerLotteryContent"><img src="./images/zzz.png"></div>进行匹配状态 -->

 <div class="inner KinerLotteryBtn start"></div>

</div>

书写css代码。

html { font-size: 20px; }

@media only screen and (min-width:401px) {

    html { font-size: 25px !important; }

}

@media only screen and (min-width:428px) {

    html { font-size: 26.75px !important; }

}

@media only screen and (min-width:481px) {

    html { font-size: 30px !important; }

}

@media only screen and (min-width:569px) {

    html { font-size: 35px !important; }

}

@media only screen and (min-width:641px) {

    html { font-size: 40px !important; }

}

html, body { padding: 0; margin: 0; background: #fffeea; height: 100%; }

p, li, b, span, div, strong, h1, h2, h3, h4, h5, h6, a, ul { margin: 0; padding: 0; text-decoration: none; list-style: none; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; }

.box { width: 14rem; height: 14rem; position: relative; margin: 0 auto; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%); -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%); }

.box .outer { width: 100%; height: 100%; position: absolute; z-index: 1; top: 0; left: 0; transform: rotate(0deg); -webkit-transform: rotate(0deg); -moz-transform: rotate(0deg); -ms-transform: rotate(0deg); -o-transform: rotate(0deg); }

.box .outer img { width: 100%; }

.box .inner { position: relative; width: 5rem; height: 5rem; left: 50%; top: 50%; -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%); -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%); transform: translate(-50%, -50%); z-index: 2; background-image: url(../images/arrow.png); background-size: auto 5rem; background-repeat: no-repeat; }

.box .inner.start:active { -webkit-transform: translate(-50%, -50%) scale(.95); -moz-transform: translate(-50%, -50%) scale(.95); -ms-transform: translate(-50%, -50%) scale(.95); -o-transform: translate(-50%, -50%) scale(.95); transform: translate(-50%, -50%) scale(.95); }

.box .inner.start { background-position: 0 0; }

.box .inner.no-start { background-position: -5rem 0; }

.box .inner.completed { background-position: -10rem 0; }

书写并添加js代码。

<script src="js/zepto.min.js"></script> 

<script src="js/kinerLottery.js"></script> 

<script>

var whichAward = function(deg) {

if ((deg > 330 && deg <= 360) || (deg > 0 && deg <= 30)) { //10M流量

return "10M";

} else if ((deg > 30 && deg <= 90)) {

return "iPhone7";

} else if (deg > 90 && deg <= 150) {

return "30M";

} else if (deg > 150 && deg <= 210) {

return "费5";

} else if (deg > 210 && deg <= 270) {

return "ipad mini4";

} else if (deg > 270 && deg <= 330) { 

return "费2";

}

}

var KinerLottery = new KinerLottery({

rotateNum: 8, 

body: "#box", 

direction: 0,

disabledHandler: function(key) {

switch (key) {

case "noStart":

alert("尚未开始");

break;

case "completed":

alert("已结束");

break;

}

}, 

clickCallback: function() {

function random() {

return Math.floor(Math.random() * 360);

}

this.goKinerLottery(random());

}, 

KinerLotteryHandler: function(deg) {

alert("获得:" + whichAward(deg));

} 

});

</script> 

书写<script src="js/kinerLottery.js"></script> 代码。

<script>

(function(win, doc, $) {

    var defaultOpt = {

        rotateNum: 5, 

        body: "", 

        disabledHandler: function() {}, 

        clickCallback: function() {}, 

        KinerLotteryHandler: function(deg) {}

    };

    function KinerLottery(opts) {

        this.opts = $.extend(true, {}, defaultOpt, opts);

        this.doing = false;

        this.init();

    }

    KinerLottery.prototype.setOpts = function(opts) {

        this.opts = $.extend(true, {}, defaultOpt, opts);

        this.init();

    };

    KinerLottery.prototype.init = function() {

        var self = this;

        this.defNum = this.opts.rotateNum * 360;

        $('body').on('click', ".KinerLotteryBtn", function() {

            if ($(this).hasClass('start') && !self.doing) {

                console.log('点击');

                self.opts.clickCallback.call(self);

            } else {

                var key = $(this).hasClass('no-start') ? "noStart" : $(this).hasClass('completed') ? "completed" : "illegal";

                self.opts.disabledHandler(key);

            }

        });

        $(this.opts.body).find('.KinerLotteryContent').get(0).addEventListener('webkitTransitionEnd', function() {

            self.doing = false;

            var deg = $(self.opts.body).attr('data-deg');

            if (self.opts.direction == 0) {

                $(self.opts.body).attr('data-deg', 360 - deg);

                $(self.opts.body).find('.KinerLotteryContent').css({

                    '-webkit-transition': 'none',

                    'transition': 'none',

                    '-webkit-transform': 'rotate(' + (deg) + 'deg)',

                    'transform': 'rotate(' + (deg) + 'deg)'

                });

                self.opts.KinerLotteryHandler(360 - deg);

            } else {

                $(self.opts.body).attr('data-deg', deg);

                $(self.opts.body).find('.KinerLotteryContent').css({

                    '-webkit-transition': 'none',

                    'transition': 'none',

                    '-webkit-transform': 'rotate(' + (-deg) + 'deg)',

                    'transform': 'rotate(' + (-deg) + 'deg)'

                });

                self.opts.KinerLotteryHandler(deg);

            }

        });

    };

    KinerLottery.prototype.goKinerLottery = function(_deg) {

        if (this.doing) {

            return;

        }

        var deg = _deg + this.defNum;

        var realDeg = this.opts.direction == 0 ? deg : -deg;

        this.doing = true;

        $(this.opts.body).find('.KinerLotteryBtn').addClass('doing');

        $(this.opts.body).find('.KinerLotteryContent').css({

            '-webkit-transition': 'all 5s',

            'transition': 'all 5s',

            '-webkit-transform': 'rotate(' + (realDeg) + 'deg)',

            'transform': 'rotate(' + (realDeg) + 'deg)'

        });

        $(this.opts.body).attr('data-deg', _deg);

    };

    win.KinerLottery = KinerLottery;

})(window, document, $);

</script> 

代码整体结构。

查看效果。