点击运行
<!DOCTYPE html> <html> <body> <iframe id="myframe" src="/index.html" name="iframe_a"></iframe> <p>单击按钮以返回 iframe 的名称。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myframe").name; document.getElementById("demo").innerHTML = x; } </script> </body> </html>
运行结果
