<script language = "javascript" type = "text/javascript"> function test(){ window.alert("你投了一次票"); //解除綁定事件 document.getElementById("but1").removeEventListener("onclick",test); } </script> <body> <input id = "but1" type = "button" value = "投票" /> <script language = "javascript" type = "text/javascript"> //動態(tài)綁定事件 可以取消綁定 document.getElementById("but1").addEventListener("onclick",test); </script> </body>
