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<!DOCTYPE html> <html> <body> <h2>带有回调函数的请求</h2> <p>PHP 文件返回对您作为回调发送的函数的调用。</p> <button onclick="clickButton()">单击我！</button> <p id="demo"></p> <script> function clickButton() { var s = document.createElement("script"); s.src = "demo_jsonp2.php?callback=myDisplayFunction"; document.body.appendChild(s); } function myDisplayFunction(myObj) { document.getElementById("demo").innerHTML = myObj.name; } </script> </body> </html>