<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<div class="btns">
<button type="button" id="exitBtn" class="btn" onClick="exitFullscreen()">
退出全屏
</button>
<button type="button" id="btn" class="btn" onClick="fullScreen()">
全屏
</button>
</div>
<script>
function fullScreen() {
var de = document.documentElement;
if (de.requestFullscreen) {
document.documentElement.requestFullscreen();
} else if (de.mozRequestFullScreen) {
de.mozRequestFullScreen();
} else if (de.webkitRequestFullScreen) {
document.documentElement.webkitRequestFullScreen();
}
}
function exitFullscreen() {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
}
}
</script>
</body>
</html>
```<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<div class="btns">
<button type="button" id="exitBtn" class="btn" onClick="exitFullscreen()">
退出全屏
</button>
<button type="button" id="btn" class="btn" onClick="fullScreen()">
全屏
</button>
</div>
<script>
function fullScreen() {
var de = document.documentElement;
if (de.requestFullscreen) {
document.documentElement.requestFullscreen();
} else if (de.mozRequestFullScreen) {
de.mozRequestFullScreen();
} else if (de.webkitRequestFullScreen) {
document.documentElement.webkitRequestFullScreen();
}
}
function exitFullscreen() {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
}
}
</script>
</body>
</html>
