通过本文主要向大家介绍了jquery,时钟等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
自己封装的一个用HTML5+jQuery写的时钟表
代码：
<!DOCTYPE html PUBLIC "-//W3C//h2D XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/h2D/xhtml1-transitional.h2d">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>超酷数码钟表</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs
/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
//引用的是在线jquery地址，如果不行请自行下载切换
(function($){
$.fn.drawClock = function(options){
var mainId = $(this);
//设置默认参数
var defaultOptions = {
'width': '300px',
'height': '300px',
'margin': '200px auto',
'border': '1px solid #888',
'border-radius': '50%',
'box-shadow': '2px 2px 4px #111'
};
var options = $.extend(defaultOptions, options);
mainId.css({
'width': options.width,
'height': options.height,
'margin': options.margin,
'border': options.border,
'border-radius': options['border-radius'],
'box-shadow': options['box-shadow'],
'position': 'relative'
}).css({
'background': '-webkit-gradient(radial, ' + mainId.width()/2 + ' ' + mainId.height()/2 + ', 0, ' + mainId.width()/2 + ' ' + mainId.height()/2 + ', ' + mainId.width()/2 + ', from(#ffe), to(#eee))',
'background': '-moz-radial-gradient(circle closest-side, #ffe 0%, #eee 100%)'
});
//钟表盘中心圆
$("<div id='circle'></div>").appendTo(mainId).css({
'width': '20px',
'height': '20px',
'border-radius': '50%',
'box-shadow': '0 0 5px rgba(0,0,0,0.8)',
'position': 'absolute',
'z-index': 999,
'background': '-webkit-gradient(radial, ' + mainId.width()/2 + ' ' + mainId.height()/2 + ', 0, ' + mainId.width()/2 + ' ' + mainId.height()/2 + ', ' + mainId.width()/2 + ', from(#ffe), to(#eee))',
'background': '-moz-radial-gradient(circle, #eee 30%, #ffe 100%)'
}).css({
'left': mainId.width()/2 - $('#circle').width()/2,
'top': mainId.height()/2 - $('#circle').height()/2
});
var dateTime = new Date();
var oHours = dateTime.getHours();
var oMinutes = dateTime.getMinutes();
var oSeconds = dateTime.getSeconds();
//初始化时分秒
var hPointer = drawPointer(mainId.width()/2, mainId.height()/2, mainId.width()/2*(3/6), 5, "#333", -90+oHours*30+oMinutes*6/12);
var mPointer = drawPointer(mainId.width()/2, mainId.height()/2, mainId.width()/2*(4/6), 4, "#666", -90+oMinutes*6);
var sPointer = drawPointer(mainId.width()/2, mainId.height()/2, mainId.width()/2*(5/6), 3, "#f00", -90+oSeconds*6);
//运动时分秒
var timer = setInterval(function(){
dateTime = new Date();
oHours = dateTime.getHours();
oMinutes = dateTime.getMinutes();
oSeconds = dateTime.getSeconds();
hPointer.css({'transform': 'rotate(' + (-90+oHours*30+oMinutes*6/12) + 'deg)'});
mPointer.css({'transform': 'rotate(' + (-90+oMinutes*6) + 'deg)'});
sPointer.css({'transform': 'rotate(' + (-90+oSeconds*6) + 'deg)'});
}, 1000);
//绘制钟表刻度
for(var i=0; i<60; i++){
var width = 3, height = 6, oBcolor = '#111';
if(i%5 == 0){
width = 5;
height = 10;
}
if(i%15 == 0){
oBcolor = 'red';
}
$("<div class='clockMark'></div>").appendTo(mainId).css({
'width': width,
'height': height,
'position': 'absolute',
'top': 0,
'left': mainId.width()/2,
'background': oBcolor,
'transform': 'rotate(' + i*6 + 'deg)',
"transform-origin": "0 " + mainId.width()/2+'px'
});
}
//绘制钟表指针
function drawPointer (startx, starty, width, height, bcolor, angle) {
var oPointer = $("<div></div>");
oPointer.appendTo(mainId).css({
'width': width,
'height': height,
'position': 'absolute',
'top': starty,
'left': startx,
'background': bcolor,
'transform': 'rotate(' + angle + 'deg)',
'transform-origin': '0 0'
});
return oPointer;
}
return this;
}
})(jQuery);
</script>
<script type="text/javascript">
$(function(){
$('#clock').drawClock();
});
</script>
</head>
<body>
<div id="clock"></div>
</body>
</html>
演示图：
以上所述就是本文的全部内容了，希望大家能够喜欢。