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模板標簽里面

自己改的聯(lián)動篩選搜索，搜索數(shù)據(jù)庫不存在的城市，如東京，默認調(diào)取全部模塊數(shù)據(jù)！

現(xiàn)在想搜索數(shù)據(jù)庫中不存在的城市，顯示無數(shù)據(jù)狀態(tài)，如何做到？

我把name值和cname值改為一樣了，這樣搜索的結(jié)果就能變成/index.php?s=info&c=search&catid=1&chengshi=北京

也能直接輸入城市查詢

        <div class="input-group" style="margin:15px auto !important;">
            <input type="text" class="form-control" onkeypress="if(event.keyCode==13) {dr_module_search('search_chengshi');return false;}" name='chengshi' value='{$chengshi}' id='search_chengshi' placeholder="請輸入城市中文名稱，如：北京、東城、深圳等">
            <span class="input-group-btn">
                <button class="btn btn-danger" onclick="dr_module_search('search_chengshi')" type="button">搜索<span class="glyphicon glyphicon-search" style="margin-left:5px;"></span></button>
            </span>
        </div>
        <script>
        // 這段js是用來執(zhí)行搜索的
        function dr_module_search(name) {
            var url="{Router::search_url($params, 'chengshi', 'dayruicom')}";
            var value = $("#"+name).val();
            if (value) {
                location.href=url.replace('dayruicom', value);
            } else {
                $("#"+name).focus()
                dr_tips(0, "請輸入城市名");
            }
            return false;
        }
        </script>
        <script type="text/javascript">
        //接收URL參數(shù)
        function GetQueryString(name) {
            var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
            var r = window.location.search.substr(1).match(reg);
            if(r != null) return decodeURI(r[2]);
            return null;
        }
        //調(diào)用URL參數(shù)
        document.getElementById("search_chengshi").value = GetQueryString("chengshi");
        </script>
        <link href="{HOME_THEME_PATH}style/css/limarquee.css" rel="stylesheet" />
        <style>
            .dowebok {
                width: 100%;
                margin: 5px auto;
                font-size: 0;
            }
            .dowebok img {
                margin-left: 10px;
                vertical-align: top;
                height: 250px;
            }
        </style>
        <div class="dowebok">
            {form form=tlgg order=inputtime num=5}
            <img src="{dr_get_file($t.ggtp)}" alt="" onclick="location = '{$t.gglj}';" />
            {/form}
        </div>
        <script src="{HOME_THEME_PATH}style/js/jquery.limarquee.js"></script>
        <script>
            $(function () {
                $('.dowebok').liMarquee({ scrollamount: 80, hoverstop: true });
            });
        </script>
        
        <p>
            <button type="button" class="btn {if !$params.order || $params.order=='updatetime'} btn-danger{else} btn-default{/if} btn-sm" onclick="location = '{Router::search_url($params, 'order', null)}';">按時間排序</button>
            <button type="button" class="btn {if $params.order=='hits'} btn-danger{else} btn-default{/if} btn-sm" onclick="location = '{Router::search_url($params, 'order', 'hits')}';">按人氣排序</button>
        </p>
        <div class="alert alert-danger" role="alert" style="margin:5px auto !important;font-size:10px !important;padding:5px !important;text-align:center;">進入詳情可見聯(lián)系方式，包括QQ/微信/手機 一枚查看幣可查看一個資源</div>
        <table class="table">
            <!--調(diào)用MOD_DIR模塊的數(shù)據(jù) id和total和order參數(shù)(本頁面固有參數(shù)) page=1標示開啟分頁 urlrule分頁地址規(guī)則 pagesize每頁數(shù)量-->
            {search module=MOD_DIR id=$searchid total=$sototal order=$params.order catid=$catid page=1 pagesize=10 urlrule=$urlrule}
            <tr>
                <td>
                    <h3 style="font-size:15px;font-weight:bold">
                        <a href="{$t.url}" onClick="lookFn()">[{dr_linkagepos('address', $t.chengshi, '-')}]&nbsp;{$t.title}</a></h3>
                    <p>{$t.description}</p>
                    <p>{$t.feiyong}</p>
                    <p class="imgList">
                        {loop $t.zhaopian $i $c}
                        {if $c >= 2 }
                        <a onclick="show_img(this)">
                            <img src="{dr_get_file($c.file)}" title="{$t.title}" />
                        </a>
                        {/if}
                        {/loop}
                    </p>
                    <p style="text-align:right;margin-top:5px;">
                        <a href="javascript:void(0)"><span class="glyphicon glyphicon-heart" style="margin-right:5px;margin-left:10px;"></span>{$t.hits}</a>
                        <a href="javascript:void(0)"><span class="glyphicon glyphicon-time" style="margin-right:5px;margin-left:10px;"></span>{$t.updatetime}</a>
                        <a href="{$t.url}"><span class="glyphicon glyphicon-eye-open" style="margin-right:5px;margin-left:10px;"></span>查看詳情</a>
                    </p>
                </td>
            </tr>
            {/search}
        </table>
        {if !$count}
        <div class="searchText">
            <span id="soCity" style="color: red;"></span>的信息庫尚未建立完整，請等待我們努力收集！<br>
            <button type="button" class="btn btn-danger btn-sm" style="margin-left:15px !important;" onclick="location = '';">我有資源分享</button>
        </div>
        <script type="text/javascript">
        //接收URL參數(shù)
        function soCity(name) {
            var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
            var r = window.location.search.substr(1).match(reg);
            if(r != null) return decodeURI(r[2]);
            return null;
        }
        //調(diào)用URL參數(shù)
        document.getElementById("soCity").textContent = soCity("chengshi");
        </script>
        {/if}
        <script>

或者搜索頁面判斷cname城市別名不存在，顯示無數(shù)據(jù)狀態(tài)，如何做到？謝謝各位老哥了！