<script type="text/javascript">
        $(document).ready(function () {
            $("#Search").click(function () {
                var res = $.ajax({ url: "ResponsePage.aspx", data: "str=" + $("#s_info").val()+"&start=1&end=10000", async: true, dataType: "html",
                    beforeSend: function (XMLHttpRequest) {
                        $("#content").html("aaa");
                    },
                    success: function () {
                        $("#content").html("");
                        $("#content").html(res.responseText);
                        $("#content").html(s_res);
                    }
                });                var res = $.ajax({ url: "ResponsePage.aspx", data: "str=" + $("#s_info").val() + "&start=10001&end=20000", async: true, dataType: "html",
                    beforeSend: function (XMLHttpRequest) {
                        $("#content2").html("bbb");
                    },
                    success: function () {
                        $("#content2").html("");
                        $("#content2").html(res.responseText);
                        $("#content2").html(s_res);
                    }
                });
            });
        });
    </script>SQL语句是通过参数between "start" and "end" 来确定查询的内容
str是所查询字段的条件.
现在查询所得结果content和content2是相同的求线程解决方案.