编辑下面的代码:【加编码】
<html> <body> <form id="form1"> <button id="button1" type="button">Click me!</button> </form> <p>The id of the form containing the button is: <script> document.write(document.getElementById("button1").form.id); </script></p> </body> </html>
结果: 【此窗口】 帮助?
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