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如何通过函数或者按键控制秒表？

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gunhajung
    42
    头像
    Jenny
      84921212
      新手上路，请多包涵

      1.在网上粘了一个秒表的html代码，可是希望通过执行某个函数或者按键来控制秒表的开始和暂停。

      <!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">

<style type="text/css">
body{
 background:white;
}
.container {
 padding: 50px;
 text-align: center;
}

.timer {
 padding: 10px;
 background: -webkit-linear-gradient(top, #222, #444);
 background: -moz-linear-gradient(top, #222, #444);
 background: -ms-linear-gradient(top, #222, #444);
 background: -o-linear-gradient(top, #222, #444);
 background: linear-gradient(top, #222, #444);
 overflow: hidden;
 display: inline-block;
 border: 7px solid #efefef;
 border-radius: 5px;
 position: relative; 
 box-shadow: inset 0 -2px 10px 1px rgba(0, 0, 0, 0.75), 0 5px 20px -10px rgba(0, 0, 0, 1);
}

.cell {
 /*只显示一位数字. 高度 = 数字的行高，宽度 = 数字的宽度*/
 width: 0.60em;
 height: 40px;
 font-size: 50px;
 overflow: hidden;
 position: relative;
 float: left;
}

.numbers {
 width: 0.6em;
 line-height: 40px;
 font-family: digital, arial, verdana;
 text-align: center;
 color: #fff;
 position: absolute;
 top: 0;
 left: 0;
 /*数字发光效果*/
 text-shadow: 0 0 5px rgba(255, 255, 255, 1);
}

/*秒表控制器样式*/
#timer_controls {
 margin-top: -5px;
}
#timer_controls label {
 cursor: pointer;
 padding: 5px 10px;
 background: #efefef;
 font-family: arial, verdana, tahoma;
 font-size: 11px;
 border-radius: 0 0 3px 3px;
}
input[name="controls"] {display: none;}

/*Control code*/
/*秒表暂停运转*/
#stop:checked~.timer .numbers {
 -webkit-animation-play-state: paused;
 -moz-animation-play-state: paused;
 -o-animation-play-state: paused;
 -ms-animation-play-state: paused;
 animation-play-state: paused;
}
/*秒表开始运转*/
#start:checked~.timer .numbers {
  -webkit-animation-play-state: running;
  -moz-animation-play-state: running;
  -o-animation-play-state: running;
  -ms-animation-play-state: running;
  animation-play-state: running;
}
/*重置秒表*/
#reset:checked~.timer .numbers {
  -webkit-animation: none;
  -moz-animation: none;
  -o-animation: none;
  -ms-animation: none;
  animation: none;
}

.moveten {
 /*使用分步骤来移动数字，10个数字即是10步*/
 -webkit-animation: moveten 1s steps(10, end) infinite;
 -moz-animation: moveten 1s steps(10, end) infinite;
 -o-animation: moveten 1s steps(10, end) infinite;
 -ms-animation: moveten 1s steps(10, end) infinite;
 animation: moveten 1s steps(10, end) infinite;
 /*默认情况下动画停止不动的*/
 -webkit-animation-play-state: paused;
 -moz-animation-play-state: paused;
 -o-animation-play-state: paused;
 -ms-animation-play-state: paused;
 animation-play-state: paused;
}
.movesix {
 -webkit-animation: movesix 1s steps(6, end) infinite;
 -moz-animation: movesix 1s steps(6, end) infinite;
 -o-animation: movesix 1s steps(6, end) infinite;
 -ms-animation: movesix 1s steps(6, end) infinite;
 animation: movesix 1s steps(6, end) infinite;
}

/*同步时间的速率*/
/*每秒十个数字，因此也需要十步*/
.second {
 -webkit-animation-duration: 10s;
 -moz-animation-duration: 10s;
 -o-animation-duration: 10s;
 -ms-animation-duration: 10s;
 animation-duration: 10s;
}
.tensecond {
  /*60 times .second*/
  -webkit-animation-duration: 60s;
  -moz-animation-duration: 60s;
  -o-animation-duration: 60s;
  -ms-animation-duration: 60s;
  animation-duration: 60s;
} 

.milisecond {
  /*1/10th of .second*/
  -webkit-animation-duration: 1s;
 -moz-animation-duration: 1s;
 -o-animation-duration: 1s;
 -ms-animation-duration: 1s;
 animation-duration: 1s;
} 
.tenmilisecond {
  -webkit-animation-duration: 0.1s;
  -moz-animation-duration: 0.1s;
  -ms-animation-duration: 0.1s;
  -o-animation-duration: 0.1s;
  animation-duration: 0.1s;
}
.hundredmilisecond {
  -webkit-animation-duration: 0.01s;
  -moz-animation-duration: 0.01s;
  -o-animation-duration: 0.01s;
  -ms-animation-duration: 0.01s;
  animation-duration: 0.01s;
}

.minute {
  /*60 times .second*/
  -webkit-animation-duration: 600s;
 -moz-animation-duration: 600s;
 -o-animation-duration: 600s;
 -ms-animation-duration: 600s;
 animation-duration: 600s;
} 
.tenminute {
  /*60 times .minute*/
  -webkit-animation-duration: 3600s;
 -moz-animation-duration: 3600s;
 -ms-animation-duration: 3600s;
 -o-animation-duration: 3600s;
 animation-duration: 3600s;
} 

.hour {
  /*60 times .minute*/
  -webkit-animation-duration: 36000s;
 -moz-animation-duration: 36000s;
 -ms-animation-duration: 36000s;
 -o-animation-duration: 36000s;
 animation-duration: 36000s;
} 
.tenhour {
  /*10 times .hour*/
  -webkit-animation-duration: 360000s;
 -moz-animation-duration: 360000s;
 -o-animation-duration: 360000s;
 -ms-animation-duration: 360000s;
 animation-duration: 360000s;
} 
@-webkit-keyframes moveten {
 0% {top: 0;}
 100% {top: -400px;} 
 /*height = 40. digits = 10. hence -400 to move it completely to the top*/
}

@-webkit-keyframes movesix {
 0% {top: 0;}
 100% {top: -240px;} 
 /*height = 40. digits = 6. hence -240 to move it completely to the top*/
}

@-moz-keyframes moveten {
 0% {top: 0;}
 100% {top: -400px;} 
 /*height = 40. digits = 10. hence -400 to move it completely to the top*/
}

@-moz-keyframes movesix {
 0% {top: 0;}
 100% {top: -240px;} 
 /*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@-o-keyframes moveten {
 0% {top: 0;}
 100% {top: -400px;} 
 /*height = 40. digits = 10. hence -400 to move it completely to the top*/
}

@-o-keyframes movesix {
 0% {top: 0;}
 100% {top: -240px;} 
 /*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@-ms-keyframes moveten {
 0% {top: 0;}
 100% {top: -400px;} 
 /*height = 40. digits = 10. hence -400 to move it completely to the top*/
}

@-ms-keyframes movesix {
 0% {top: 0;}
 100% {top: -240px;} 
 /*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
@keyframes moveten {
 0% {top: 0;}
 100% {top: -400px;} 
 /*height = 40. digits = 10. hence -400 to move it completely to the top*/
}

@keyframes movesix {
 0% {top: 0;}
 100% {top: -240px;} 
 /*height = 40. digits = 6. hence -240 to move it completely to the top*/
}
/*Lets use a better font for the numbers*/
@font-face {
 font-family: 'digital';
 src: url('http://thecodeplayer.com/uploads/fonts/DS-DIGI.TTF');
 
} 
 </style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head>
<body>
<div class="page">
 <section class="demo">
  <div class="container">
   <!-- time to add the controls -->
   <input id="start" name="controls" type="radio"  />
   <input id="stop" name="controls" type="radio" />
   <input id="reset" name="controls" type="radio" />
   <div class="timer">
    <div class="cell">
     <div class="numbers tenhour moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
    <div class="cell">
     <div class="numbers hour moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
    <div class="cell divider"><div class="numbers">:</div></div>
    <div class="cell">
     <div class="numbers tenminute movesix">0 1 2 3 4 5 6</div>
    </div>
    <div class="cell">
     <div class="numbers minute moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
    <div class="cell divider"><div class="numbers">:</div></div>
    <div class="cell">
     <div class="numbers tensecond movesix">0 1 2 3 4 5 6</div>
    </div>
    <div class="cell">
     <div class="numbers second moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
    <div class="cell divider"><div class="numbers">:</div></div>
    <div class="cell">
     <div class="numbers milisecond moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
    <div class="cell">
     <div class="numbers tenmilisecond moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
    <div class="cell">
     <div class="numbers hundredmilisecond moveten">0 1 2 3 4 5 6 7 8 9</div>
    </div>
   </div>
   <!-- Lables for the controls -->
   <div id="timer_controls">
    <label for="start">开始</label>
    <label for="stop">暂停</label>
    <label for="reset">清零</label>
    
   </div>
  </div>
</div>


</body>
</html>

      目前只能通过 点击 label 来实现开始和暂停,尝试过JavaScript动态的改变input的value属性时，自动触发oninput、onchange事件，可是没有成功。有更简单的方法实现吗？
      https://segmentfault.com/q/10...

      图片描述

      javascripthtml
      阅读 1.8k
      2 个回答
      得票最新
      头像
      某熊猫桑
        16.1k61547
        ✓ 已被采纳

        其实你看它控制的关键属性是：

        /*Control code*/
/*秒表暂停运转*/
#stop:checked~.timer .numbers {
 -webkit-animation-play-state: paused;
 -moz-animation-play-state: paused;
 -o-animation-play-state: paused;
 -ms-animation-play-state: paused;
 animation-play-state: paused;
}
/*秒表开始运转*/
#start:checked~.timer .numbers {
  -webkit-animation-play-state: running;
  -moz-animation-play-state: running;
  -o-animation-play-state: running;
  -ms-animation-play-state: running;
  animation-play-state: running;
}
/*重置秒表*/
#reset:checked~.timer .numbers {
  -webkit-animation: none;
  -moz-animation: none;
  -o-animation: none;
  -ms-animation: none;
  animation: none;
}

        就是用:checked伪类触发兄弟元素.timer内的.numbers，变更animation的样式和状态，那么你一样也可以给.numbers变更样式啊。

        头像
        yuanxiaowa
          10.1k3938

          使用自己定义事件，触发input和change

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