console 命令行工具 X clear

console

document.write("Welcome to my website")

function callAlert(){
    alert('我被点击了一下');
}

window.onload = function () {
    alert("欢迎光临萌萌小店！");
}
window.onbeforeunload = function (event) {
    var e = event || window.event;
    e.returnValue = "记得下来再来喔！";
}

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8"/>
        <title></title>
        <!--script>
            function callAlert(){
                alert('我被点击了一下');
            }
        </script-->
    </head>
<body>
    <button onclick="alert('我被点击')">点我</button>
    <button onclick="callAlert()">点我一下</button>
    <script>
        //alert("Hi");
    </script>
</body>
</html>