开发环境
fullscreen 用于控制页面或元素全屏

## 显示代码

                    <link rel="stylesheet" href="component/pear/css/pear.css" />
                     并
                    <script src="component/layui/layui.js"></script>
                     并
                    <script src="component/pear/pear.js"></script>

全屏控制

## 显示代码

    				layui.use(['fullscreen'], function() {
        var fullscreen = layui.fullscreen;
         fullscreen.fullScreen();
    	    fullscreen.fullClose();
    	    fullscreen.fullScreen("#fulltarget");
    	    fullscreen.isFullscreen();

    			})

指定容器全屏