JS 参考手册在线编辑器 | JS 参考手册代码测试

<!DOCTYPE html>
<html>
<head>
<style> 
#myDIV {
  margin: 25px;
  width: 550px;
  height: 100px;
  background: orange;
  position: relative;
  font-size: 20px;
}

/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
  from {top: 0px;}
  to {top: 200px;}
}

@keyframes mymove {
  from {top: 0px;}
  to {top: 200px;}
}
</style>
</head>
<body>

<p>此示例使用 addEventListener() 方法将“animationstart”、“animationiteration”和“animationend”事件附加到 DIV 元素。</p>

<div id="myDIV" onclick="myFunction()">点击我开始动画。</div>

// 使用 JavaScript 启动动画
function myFunction() {
  x.style.WebkitAnimation = "mymove 4s 2"; // Code for Chrome, Safari and Opera
  x.style.animation = "mymove 4s 2";     // 标准语法
}

// Code for Chrome, Safari and Opera
x.addEventListener("webkitAnimationStart", myStartFunction);
x.addEventListener("webkitAnimationIteration", myRepeatFunction);
x.addEventListener("webkitAnimationEnd", myEndFunction);

// 标准语法
x.addEventListener("animationstart", myStartFunction);
x.addEventListener("animationiteration", myRepeatFunction);
x.addEventListener("animationend", myEndFunction);

function myStartFunction() {
  this.innerHTML = "animationstart 事件发生 - 动画已经开始";
  this.style.backgroundColor = "pink";
}

function myRepeatFunction() {
  this.innerHTML = "animationiteration 事件发生 - 动画再次播放";
  this.style.backgroundColor = "lightblue";
}

function myEndFunction() {
  this.innerHTML = "animationend 事件发生 - 动画已经完成";
  this.style.backgroundColor = "lightgray";
}
</script>

</body>
</html>