console 命令行工具 X clear

console

//  alert(navigator.userAgent)
console.log(navigator.userAgent)

document.getElementById('con').innerHTML= navigator.userAgent

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>WeChat Browser info</title>
</head>
<body>
    WeChat 浏览器 信息
    <div id= 'con'>
    </div>
</body>
</html>