js 控制页面全屏

// 进入全屏模式
function enterFullscreen(element) {
    if (element.requestFullscreen) {
        element.requestFullscreen();
    } else if (element.mozRequestFullScreen) { // Firefox
        element.mozRequestFullScreen();
    } else if (element.webkitRequestFullscreen) { // Chrome, Safari & Opera
        element.webkitRequestFullscreen();
    } else if (element.msRequestFullscreen) { // IE/Edge
        element.msRequestFullscreen();
    }
}

// 退出全屏模式
function exitFullscreen() {
    if (document.exitFullscreen) {
        document.exitFullscreen();
    } else if (document.mozCancelFullScreen) { // Firefox
        document.mozCancelFullScreen();
    } else if (document.webkitExitFullscreen) { // Chrome, Safari & Opera
        document.webkitExitFullscreen();
    } else if (document.msExitFullscreen) { // IE/Edge
        document.msExitFullscreen();
    }
}

// 使用示例：点击按钮进入全屏模式
document.getElementById('fullscreen-button').addEventListener('click', function() {
    enterFullscreen(document.documentElement); // 将整个文档设为全屏
});

// 使用示例：点击按钮退出全屏模式
document.getElementById('exit-fullscreen-button').addEventListener('click', exitFullscreen);