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JavaScript 教程
JavaScript基础教程
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<!DOCTYPE html> <html> <title>JavaScript Alert - 基础教程(div.cn)</title> <body> <p>单击下面的按钮显示不同的对话框:</p> <button onclick="myAlert()">Alert</button> <button onclick="myConfirm()">Confirm</button> <button onclick="myPrompt()">Prompt</button> <p id="output"></p> <script> var x = document.getElementById("output"); function myAlert() { alert("Hello world!"); } function myConfirm() { var txt; var r = confirm("Press a button!"); if (r == true) { txt = "You pressed OK!"; } else { txt = "You pressed Cancel!"; } x.innerHTML = txt } function myPrompt() { var name = prompt("Please enter your name", "Someone"); if (name != null) { x.innerHTML = "Hello " + name + "! How are you today?"; } } </script> </body> </html>
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