<script type="text/javascript">
function checkall(qx)
{
var ck=document.getElementsByClassName("ck");
if(qx.checked)
{
for (var i=0;i<ck.length;i++)
{
ck[i].setAttribute("checked","checked");
}
}
else {
for (var i = 0; i < ck.length; i++) {
ck[i].removeAttribute("checked");

}
}
}

</script>

利用js写全选操作


 
                    
            
                

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