jquery全选checkBox功能实现代码(取消全选功能)

2020-05-19 07:33:06易采站长站整理

 
 <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”>
<HTML>
 <HEAD>
 <TITLE> New Document </TITLE>
 <meta http-equiv=”Content-Type” content=”text/html; charset=gbk” />
 <link href=”css/ingrid.css” rel=”stylesheet” type=”text/css”>
<script language=”JavaScript” src=”jquery-1.3.2.js” type=”text/javascript”></script>
 <SCRIPT LANGUAGE=”JavaScript”>
<!–
    $(“document”).ready(function(){
     $(“#all”).click(function(){  
    if(this.checked){  
        $(“input[name=’checkbox’]”).each(function(){this.checked=true;});
 $(“#btn1”).attr(“value”,”反选”);  
    }else{  
        $(“input[name=’checkbox’]”).each(function(){this.checked=false;});  
        $(“#btn1”).attr(“value”,”全选”);
    }  
 });


     $(“#btn1”).click(function(){
       $(“[name=’checkbox’]”).attr(“checked”,’true’);//全选
     })
     $(“#btn2”).click(function(){
         $(“[name=’checkbox’]”).removeAttr(“checked”);//取消全选
    })
       $(“#btn3”).click(function(){
        $(“[name=’checkbox’]:even”).attr(“checked”,’true’);//选中所有奇数
      })
       $(“#btn4”).click(function(){
         $(“[name=’checkbox’]”).each(function(){
           
             if($(this).attr(“checked”))
            {
              $(this).removeAttr(“checked”);
            }
           else
           {
             $(this).attr(“checked”,’true’);