全选删除的简单实现

<input type="checkbox"  id="ckb_selectAll" onclick="selectAll()"  title="选中/取消选中">
<a href="javascript:void(0);" onclick="del_()" title="删除选定数据" style="font-weight:normal">删除</a>

<input type="checkbox" class="ckb" id="+con.id+" value="+con.id+">

function selectAll() {
    if ($('#ckb_selectAll').is(':checked')) {
        $(".ckb").attr("checked", true); //全部选中
    } else {
        $(".ckb").attr("checked", false);//全部取消
    }
}

function del_() {
    var ids = '';
    $(".ckb").each(function() {
        if ($(this).is(':checked')) {
            ids += ',' + $(this).val(); //逐个获取id
        }
    });
    ids = ids.substring(1); // 对id进行处理，去除第一个逗号
    if (ids.length == 0) {
        alert('请选择要删除的选项');
    } else {
        if (confirm("确定删除？删除后将无法恢复。")) {
            url = "action=del_call_record&ids=" + ids;
            $.ajax({
                type: "post",
                url: "send.php",
                data: url,
                success: function(json) {
                    if (parseInt(json.counts) > 0) {
                        alert(json.des);
                        location.reload();
                    } else {
                        alert(json.des);
                    }
                },
                error: function(XMLHttpRequest, textStatus) {
                    alert("页面请求错误，请检查重试或联系管理员！\n" + textStatus);
                }
            });
        }
    }
}

$ids = trim($_REQUEST['ids']);
$del_sql = "DELETE FROM  vicidial_call_record WHERE id IN(".$ids.")";
//print_r($del_sql);exit;
if (mysqli_query($db_conn, $del_sql)) {
    $counts = "1";
    $des = "成功";
} else {
    $counts = "0";
    $des = "失败";
}
$json_data = "{";
$json_data. = "\"counts\":".json_encode($counts).",";
$json_data. = "\"des\":".json_encode($des)."";
$json_data. = "}";
echo $json_data;
break;