console 命令行工具 X clear

console

document.write("welcome to my website")

function callAlert()
{
    alert('我被电了一下');
}

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>
</head>
<body>
    <!--button onclick="alert('我被电击')">点我</button>
     <!--script>
         ////alert("hi!")
    </script>
</body>
</html>