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<!DOCTYPE html> <html> <body> <h2>单击按钮。</h2> <p>带有 src 属性的脚本标签被创建并放置在文档中。</p> <p>PHP 文件返回一个以 JSON 对象作为参数的函数调用。</p> <button onclick="clickButton()">单击我！</button> <p id="demo"></p> <p>尝试将表属性从“customers”更改为“products”。</p> <script> function clickButton() { var obj, s obj = { table: "customers", limit: 10 }; s = document.createElement("script"); s.src = "jsonp_demo_db.php?x=" + JSON.stringify(obj); document.body.appendChild(s); } function myFunc(myObj) { var x, txt = ""; for (x in myObj) { txt += myObj[x].name + "<br>"; } document.getElementById("demo").innerHTML = txt; } </script> </body> </html>