<!DOCTYPE html>
<html>
<body>
<h1>Window 对象</h1>
<h2>prompt() 方法</h2>
<p>单击按钮，会询问您最喜欢的饮料。</p>
<button onclick="myFunction()">试一试</button>
<p id="demo"></p>
<script>
function myFunction() { let text;
let favDrink = prompt("您最喜欢喝什么？", "可口可乐"); switch(favDrink) { case "可口可乐":
text = "很棒的选择。可口可乐对您的灵魂有益。";
break;
case "百事可乐":
text = "百事可乐也是我的最爱！";
break;
case "雪碧":
text = "真的吗？您确定雪碧是您的最爱吗？";
break;
default:
text = "我从没听说过那个..";
}
document.getElementById("demo").innerHTML = text;}
</script>
</body>
</html>