console 命令行工具 X clear

console

['contextmenu', 'selectstart', 'copy','dragstart'].forEach(function(ev){
    document.addEventListener(ev, function(ev){
        ev.preventDefault();
        ev.returnValue = false;
    })
});

<p>hello,world</p>
<img src="https://gw.alipayobjects.com/zos/rmsportal/XuVpGqBFxXplzvLjJBZB.svg" alt="语雀" width="32" height="32" class="lark-logo-simple">

body {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -khtml-user-select: none;
    user-select: none;
}