css怎么样制作钟表

html-css033

css怎么样制作钟表,第1张

代码如下:

<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta charset="utf-8" />

<title>canvas实例--制作时钟</title>

</head>

<body>

<canvas id="canvas" width="500" height="500" >

您的浏览器版本太低啦!可以换了!

</canvas>

<script>

//获取canvas

var canvas = document.getElementById("canvas")

//设置环境

var cxt = canvas.getContext("2d")

//制作时钟的函数

function DrawClock() {

//清除画布

cxt.clearRect(0,0,500,500)

//获取当前时间的时,分,秒

var now = new Date()

var hour = now.getHours()

var min = now.getMinutes()

var sec = now.getSeconds()

//小时必须获取浮点型(小时+分数--->转化为的小时)

hour = hour + min / 60

//将24小时转换为12小时

hour = hour >12 ? hour - 12 : hour

//制作表盘

cxt.beginPath()

cxt.lineWidth = 10

cxt.strokeStyle = "#ABCDEF"

cxt.arc(250, 250, 200, 0, 360, false)

cxt.stroke()

cxt.closePath()

//刻度

//时针

for (var i = 0i <12i++) {

cxt.save()

cxt.lineWidth = 7

cxt.strokeStyle = "red"

//设置0,0点

cxt.translate(250, 250)

//再设置旋转角度

cxt.rotate(i * 30 * Math.PI / 180)

cxt.beginPath()

cxt.moveTo(0, -170)

cxt.lineTo(0, -190)

cxt.closePath()

cxt.stroke()

cxt.restore()

}

//分针

for (var i = 0i <60i++) {

//为避免不同颜色的重叠,

//在时针刻度与分针刻度重叠的位置,不画分针

if (i % 5 == 0) continue

cxt.save()

//设置刻度粗细

cxt.lineWidth = 5

cxt.strokeStyle = "purple"

//设置画布的0,0点

cxt.translate(250, 250)

//设置旋转角度

cxt.rotate(i * 6 * Math.PI / 180)

//画分针刻度

cxt.beginPath()

cxt.moveTo(0, -180)

cxt.lineTo(0, -190)

cxt.closePath()

cxt.stroke()

cxt.restore()

}

//时针

cxt.save()

//设置时针风格

cxt.lineWidth = 7

cxt.strokeStyle = "pink"

//设置异次元空间的0,0点

cxt.translate(250, 250)

//设置旋转角度

cxt.rotate(hour * 30 * Math.PI / 180)

cxt.beginPath()

cxt.moveTo(0, -140)

cxt.lineTo(0, 10)

cxt.closePath()

cxt.stroke()

cxt.restore()

//分针

cxt.save()

//设置分针风格

cxt.lineWidth = 5

cxt.strokeStyle = "orange"

//设置异次元空间的0,0点

cxt.translate(250, 250)

//设置旋转角度

cxt.rotate(min * 6 * Math.PI / 180)

cxt.beginPath()

cxt.moveTo(0, -160)

cxt.lineTo(0, 15)

cxt.closePath()

cxt.stroke()

cxt.restore()

//秒针

cxt.save()

//风格

cxt.strokeStyle = "yellow"

cxt.lineWidth = 3

//重置0,0点

cxt.translate(250, 250)

//设置旋转角度

cxt.rotate(sec*6*Math.PI/180)

//画图

cxt.beginPath()

cxt.moveTo(0, -170)

cxt.lineTo(0, 20)

cxt.stroke()

//画出时针,分针,秒针的交叉点

cxt.beginPath()

cxt.arc(0, 0, 5, 0, 360, false)

cxt.closePath()

//设置填充样式

cxt.fillStyle = "blue"

cxt.fill()

//设置笔触样式--->秒针已设置

cxt.stroke()

//设置秒针前端的小圆点

cxt.beginPath()

cxt.arc(0, -150, 5, 0, 360, false)

cxt.closePath()

//设置填充样式

cxt.fillStyle = "blue"

cxt.fill()

//设置笔触样式

cxt.stroke()

cxt.closePath()

cxt.restore()

}

//调用函数

DrawClock()

//设置时钟转动起来

setInterval(DrawClock, 1000)

</script>

</body>

</html>

这个时钟不需要很多HTML,这是因为它很大的一部分,像工作日的名称和数字都是动态生成的。 下面是你需要在你页面上使用时钟时要有的标签:

index.html

<div id="clock" class="light">

<div class="display">

<div class="weekdays"></div>

<div class="ampm"></div>

<div class="alarm"></div>

<div class="digits"></div>

</div>

</div>

主元素为#clock的div,包含.display的div,用于容纳平日列表、AM/PM标记、闹铃和时间。 下面代码为每个数字生成一个标签:

<div class="zero">

<span class="d1"></span>

<span class="d2"></span>

<span class="d3"></span>

<span class="d4"></span>

<span class="d5"></span>

<span class="d6"></span>

<span class="d7"></span>

</div>

.digits元素包含6个像这样带span的div,每个div为时钟的一个数字。就像你在上面片段中所见到的一样,这些div拥有一个从0到9的样式名称,并且包含7个带独立样式的span元素,这些span是数字的一部分,像老的数字时钟一样:

数字说明

它们完全用CSS样式渲染且默认设置为 opacity:0 。定义在它们父div上的样式将决定它们的可见性。下面是数字“0”的CSS:

assets/css/styles.css

/* 0 */

#clock .digits div.zero .d1,

#clock .digits div.zero .d3,

#clock .digits div.zero .d4,

#clock .digits div.zero .d5,

#clock .digits div.zero .d6,

#clock .digits div.zero .d7{

opacity:1

}

除了中间一个,所有的片断都是可见的,我已经向所有的这些span添加了CSS3转换属性,当在数字之间切换时出现渐变效果。

样式表里有很多其他CSS,我不再这列举。我相信最好的方式去学习CSS如何工作就是在Firebug、Chrome的审查器或你浏览器里的开发者工具里即时审查demo的代码。

黑色主题

jQuery 代码

要想要时钟工作,我们将使用jQuery生成每个数字的标签,并且设置一个定时器每秒钟更新一次样式,为了更简单,我们使用moment.js 库(快速开始) 来补偿JavaScript原生日期和时间方法的缺陷。

assets/js/script.js

$(function(){

// Cache some selectors

var clock = $('#clock'),

alarm = clock.find('.alarm'),

ampm = clock.find('.ampm')

// Map digits to their names (this will be an array)

var digit_to_name = 'zero one two three four five six seven eight nine'.split(' ')

// This object will hold the digit elements

var digits = {}

// Positions for the hours, minutes, and seconds

var positions = [

'h1', 'h2', ':', 'm1', 'm2', ':', 's1', 's2'

]

// Generate the digits with the needed markup,

// and add them to the clock

var digit_holder = clock.find('.digits')

$.each(positions, function(){

if(this == ':'){

digit_holder.append('<div class="dots">')

}

else{

var pos = $('<div>')

for(var i=1i<8i++){

pos.append('<span class="d' + i + '">')

}

// Set the digits as key:value pairs in the digits object

digits[this] = pos

// Add the digit elements to the page

digit_holder.append(pos)

}

})

// Add the weekday names

var weekday_names = 'MON TUE WED THU FRI SAT SUN'.split(' '),

weekday_holder = clock.find('.weekdays')

$.each(weekday_names, function(){

weekday_holder.append('<span>' + this + '</span>')

})

var weekdays = clock.find('.weekdays span')

// Run a timer every second and update the clock

(function update_time(){

// Use moment.js to output the current time as a string

// hh is for the hours in 12-hour format,

// mm - minutes, ss-seconds (all with leading zeroes),

// d is for day of week and A is for AM/PM

var now = moment().format("hhmmssdA")

digits.h1.attr('class', digit_to_name[now[0]])

digits.h2.attr('class', digit_to_name[now[1]])

digits.m1.attr('class', digit_to_name[now[2]])

digits.m2.attr('class', digit_to_name[now[3]])

digits.s1.attr('class', digit_to_name[now[4]])

digits.s2.attr('class', digit_to_name[now[5]])

// The library returns Sunday as the first day of the week.

// Stupid, I know. Lets shift all the days one position down,

// and make Sunday last

var dow = now[6]

dow--

// Sunday!

if(dow <0){

// Make it last

dow = 6

}

// Mark the active day of the week

weekdays.removeClass('active').eq(dow).addClass('active')

// Set the am/pm text:

ampm.text(now[7]+now[8])

// Schedule this function to be run again in 1 sec

setTimeout(update_time, 1000)

})()

// Switch the theme

$('a.button').click(function(){

clock.toggleClass('light dark')

})

})

我这里有一段js动态时钟的代码,日历的比较复杂,没有研究:

<scripttype="text/javascript">

setInterval(function() {

var week

var date

var today = new Date()

var year = today.getFullYear()

var month = today.getMonth() + 1

var day = today.getDate()

var ss = today.getDay()

var hours = today.getHours()

var minutes = today.getMinutes()

var seconds = today.getSeconds()

date = year + "年" + month +"月" + day + "日 "

if (ss == 0) week = "星期日"

if (ss == 1) week = "星期一"

if (ss == 2) week = "星期二"

if (ss == 3) week = "星期三"

if (ss == 4) week = "星期四"

if (ss == 5) week = "星期五"

if (ss == 6) week = "星期六"

if (minutes <= 9) minutes ="0" + minutes

if (seconds <= 9) seconds ="0" + seconds

document.getElementById('p_time').innerHTML = "今天是:" + date

+ week + " " + hours + ":" + minutes + ":" +

seconds

},

1000)

</script>

这里一定要注意,html里要有一个id为p_time的div。