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event.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
div {
padding: 20px;
}
</style>
</head>
<body>
<div id='box1'>
box1
<div id="box2">
box2
<div id="box3">
box3
</div>
</div>
</div>
<script>
window.addEventListener('click', () => {
console.log('冒泡 window')
}, false)
box1.addEventListener('click', () => {
console.log('冒泡 box1')
}, false)
box2.addEventListener('click', () => {
console.log('冒泡 box2')
}, false)
box3.addEventListener('click', (e) => {
e.stopPropagation()
console.log('冒泡 box3')
}, false)
window.addEventListener('click', (e) => {
e.stopPropagation()
console.log('捕获 window')
}, true)
box1.addEventListener('click', () => {
console.log('捕获 box1')
}, true)
box2.addEventListener('click', () => {
console.log('捕获box2')
}, true)
box3.addEventListener('click', (e) => {
console.log('捕获 box3')
}, true)
</script>
</body>
</html>