29 lines
707 B
HTML
29 lines
707 B
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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<title>Document</title>
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</head>
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<body>
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<script type="text/javascript">
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//setInterval
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//每间隔多久就执行一次函数
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//参数 1函数
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//参数 2时间(毫秒)
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// window.setInterval(function(){
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// alert('哈哈，卡住了')//alert具有阻塞性
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// },1000)
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//返回值就是定时器的Id
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var timerId = setInterval(function(){
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console.log('hahaha')
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},10)
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window.onload = function(){
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document.getElementById('btn').onclick = function(){
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//clearInterval(定时器的id)
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window.clearInterval(timerId)
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}
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}
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</script>
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<input type="button" name="" value="停止定时器" id="btn">
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</body>
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</html> |