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编辑您的代码：
<html> <head> <script type="text/javascript"> function alertId() { var txt="Id: " + document.getElementById("myButton").id txt=txt + ", type: " + document.getElementById("myButton").type alert(txt) document.getElementById("myButton").disabled=true } </script> </head> <body> <form> <button id="myButton" onClick="alertId()">请点击我！</button> </form> </body> </html>
查看结果: