今天我在學習css3的時候，無意間在一個博客好友的文章裏看見咯一個純代碼寫出的動態時鐘，我覺得很有確，我就試着按照他的思路分析自己寫咯一個，
不過我寫的和他寫的還是有區別的，他的好些元素是用js創建的，而我的是直接在html代碼裏面添加的，練習的過程中，我把以前我不懂怎樣使用原型平均分裂div學習到咯，代碼如下：
<div class="box">
<div class="dot"></div
<div>
var radius = 180;//大圓半價
var dot_num = 360/$(".dot").length;//每個div對應的弧度數
//每一個dot對應的弧度;
var ahd = dot_num*Math.PI/180;
$(".dot").each(function(index, el) {
$(this).css({
"left":190+Math.sin((ahd*index))*radius,
"top":190+Math.cos((ahd*index))*radius
});
});
實現的效果圖如下：
看是不是均勻分配的呢？
html代碼如下：
<div class="box" id="clock">
<!-- 原點 -->
<div class="origin"></div>
<!-- 時鐘數 -->
<div class="dot_box">
<div class="dot">6</div>
<div class="dot">5</div>
<div class="dot">4</div>
<div class="dot">3</div>
<div class="dot">2</div>
<div class="dot">1</div>
<div class="dot">12</div>
<div class="dot">11</div>
<div class="dot">10</div>
<div class="dot">9</div>
<div class="dot">8</div>
<div class="dot">7</div>
</div>
<!-- 時、分、秒針 -->
<div class="clock_line hour_line" id="hour_line"></div>
<div class="clock_line minute_line" id="minute_line"></div>
<div class="clock_line second_line" id="second_line"></div>
<!-- 日期 -->
<div class="date_info" id="date_info"></div>
<!-- 時間 -->
<div class="time_info" >
<div class="time" id="hour_time"></div>
<div class="time" id="minute_time"></div>
<div class="time" id="second_time"></div>
</div>
</div>css代碼：
body,div,p{ font-family: 'Microsoft Yahei' ;font-size: 14px;}
.box{ width: 400px; height: 400px; border:10px solid #8bf2f1;margin:100px auto; border-radius: 50%;
box-shadow: 0px 0px 20px 3px #444 inset; position: relative;}
/*原點*/
.origin{ width: 20px; height: 20px; border-radius: 50%; background: #ff0000; top:190px; left: 190px; position: absolute;}
/* 指針 */
.clock_line{ position: absolute;position:absolute;z-index:20;}
.hour_line{width:100px;height:4px;top:198px;left:200px;background-color:#000;border-radius:2px;
transform-origin:0 50%;box-shadow:1px -3px 8px 3px #aaa;}
.minute_line{width:130px;height:2px;top:199px;left:190px;background-color:#000;
transform-origin:7.692% 50%;box-shadow:1px -3px 8px 1px #aaa;}
.second_line{width:170px;height:1px;top:199.5px;left:180px;background-color:#f60;
transform-origin:11.765% 50%;box-shadow:1px -3px 7px 1px #bbb;}
.dot_box{width: inherit; height: inherit;}
/*時鐘數*/
.dot{ width: 40px; height: 40px; line-height: 40px; text-align: center; font-size: 22px; position: absolute;}
.clock-scale{width:195px;height:2px;transform-origin:0% 50%;z-index:7;
position:absolute;top:199px;left:200px;}
.scale-show{ width:12px;height:2px;background-color:#555;float:left;}
.scale-hidden{width:183px;height:2px;float:left;}
/*日期*/
.date_info{width:160px;height:28px;
line-height:28px;text-align:center;position:absolute;top:230px;left:120px;z-index:11;color:#555;
font-weight:bold;}
.time_info{ width: 110px; height: 35px; line-height: 35px;text-align:center;position:absolute;top:270px;left:150px;z-index:11;color:#555; background: #253e3e; }
.time{ width: 35px ;height:35px; float: left; color: #fff; font-size: 22px;}
#minute_time{border-left:1px solid #fff;border-right:1px solid #fff;}js代碼如下：
$(function(){
var clock = document.getElementById("clock");
function initNumXY(){
// 1、12個數字的位置設置
var radius = 160;//大圓半價
var dot_num = 360/$(".dot").length;//每個div對應的弧度數
//每一個dot對應的弧度;
var ahd = dot_num*Math.PI/180;
$(".dot").each(function(index, el) {
$(this).css({
"left":180+Math.sin((ahd*index))*radius,
"top":180+Math.cos((ahd*index))*radius
});
});
// 2、刻鐘設置
for(var i = 0; i < 60; i++) {
clock.innerHTML += "<div class='clock-scale'> " +
"<div class='scale-hidden'></div>" +
"<div class='scale-show'></div>" +
"</div>";
}
var scale = document.getElementsByClassName("clock-scale");
for(var i = 0; i < scale.length; i++) {
scale[i].style.transform="rotate(" + (i * 6 - 90) + "deg)";
}
}
initNumXY();//調用上面的函數
//獲取時鐘id
var hour_line = document.getElementById("hour_line"),
minute_line = document.getElementById("minute_line"),
second_line = document.getElementById("second_line"),
date_info=document.getElementById("date_info"),//獲取date_info
hour_time = document.getElementById("hour_time"),// 獲去時間id
minute_time = document.getElementById("minute_time"),
second_time = document.getElementById("second_time");
//3、設置動態時間
function setTime(){
var nowdate = new Date();
//獲取年月日時分秒
var year = nowdate.getFullYear(),
month = nowdate.getMonth()+1,
day = nowdate.getDay(),
hours = nowdate.getHours(),
minutes = nowdate.getMinutes(),
seconds = nowdate.getSeconds(),
date = nowdate.getDate();
var weekday =["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];
// 獲取日期id
date_info.innerHTML=year+"年"+month+"月"+day+"日 "+weekday[day];
hour_time.innerHTML = hours >=10 ? hours : "0"+hours;
minute_time.innerHTML = minutes >=10 ? minutes : "0"+minutes;
second_time.innerHTML = seconds >=10 ? seconds : "0"+seconds;
console.log(year+"年"+month+"月"+day+"日 "+weekday[day]);
//時分秒針設置
var hour_rotate = (hours*30-90) + (Math.floor(minutes / 12) * 6);
hour_line.style.transform = 'rotate(' + hour_rotate + 'deg)';
minute_line.style.transform = 'rotate(' + (minutes*6 - 90) + 'deg)';
second_line.style.transform = 'rotate(' + (seconds*6 - 90)+'deg)';
}
// setTime();
setInterval(setTime, 1000);
});
請大家多多指點。