body和document点击事件


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<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8">
<title>body点击事件</title>
</head>

<body>
hello
</body>

</html>
<script>
var bd = document.body //body必须有内容,而且必须点击到内容才能触发
bd.onclick = () {
alert(1)
}
</script>
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<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8">
<title>document点击事件</title>
</head>

<body>
</body>

</html>
<script>
document.onclick = () {
alert(2)
}
</script>