62 lines
1.5 KiB
HTML
62 lines
1.5 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<title>Document</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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}
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div {
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height: 300px;
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width: 300px;
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background: red;
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position: absolute;
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}
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</style>
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</head>
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<body>
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<input type="button" value="移动到400px" id='btn1'>
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<input type="button" value="移动到800px" id='btn2'>
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<div id="dv"></div>
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<script type="text/javascript">
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window.onload = function() {
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var btn1 = document.getElementById('btn1')
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var dv = document.getElementById('dv')
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var timer1;
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btn1.onclick=function() {
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var current = dv.offsetLeft
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var step = 10
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timer1 = setInterval(function(){
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current += step;
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//先判断后赋值
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if(current >= 400) {
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clearInterval(timer1)
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current = 400
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}
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dv.style.left = current + 'px';
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}, 10)
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}
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var btn2 = document.getElementById('btn2')
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var timer2;
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btn2.onclick=function() {
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var current = dv.offsetLeft
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var step = 10
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timer2 = setInterval(function(){
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current += step;
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//先判断后赋值
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if(current >= 800) {
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clearInterval(timer2)
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current = 800
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}
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dv.style.left = current + 'px';
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}, 10)
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}
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}
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</script>
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</body>
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</html> |