jQuery(5)--實現checkbox的全選,反選，全不選功能
阿新 • • 發佈：2019-02-02
頁面如下：
原始碼：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>demo04.html</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <!--<link rel="stylesheet" type="text/css" href="./styles.css">--> <script type="text/javascript" src="../js/jquery-1.9.1.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("#ckbAll").click(function(){ $("input[name='fav']").attr("checked",true); }); $("#ckbno").click(function(){ $("input[name='fav']").attr("checked",false); }); $("#ckbrec").click(function(){ $("input[name='fav']").each(function(){ // $(this).attr("checked",!$(this).attr("checked")); this.checked=!this.checked;//用的是Dom的屬性 }); }); }); </script> </head> <body> <div> <input type="checkbox" name="fav" value="看書1" checked="checked"/>看書1 <input type="checkbox" name="fav" value="看書2" checked="checked"/>看書2 <input type="checkbox" name="fav" value="看書3" checked="checked"/>看書3 <input type="checkbox" name="fav" value="看書4" checked="checked"/>看書4 </div> <div> <input type="button" id="ckbAll" value="全選"/><br/><br/> <input type="button" id="ckbno" value="全不選"/><br/><br/> <input type="button" id="ckbrec" value="反選"/><br/> </div> </body> </html>