<div id="cd-search" class="cd-search">
		  <div class="container">
		<form>
			<input type="search" class="search-input" onkeypress="if(event.keyCode==13) {dr_module_search();return false;}" name='keyword' value='{$keyword}' id='search_keyword' placeholder="请输入关键字">
            <button class="search-btn" onclick="dr_module_search()" type="button"><i class="ion ion-md-search"></i></button>
		</form>
		</div>
                	
	</div>
                                <script>
                                    // 这段js是用来执行搜索的
                                    function dr_module_search(name) {
                                        var url="{Router::search_url($params, ['keyword'], ['mykeyword'],'download')}";
                                        // 这是按关键词的写法参数替换
                                        var keyword = $("#search_keyword").val();
                                        if (keyword) {
                                            url = url.replace('mykeyword', keyword);
                                        } else {
                                            url = url.replace('mykeyword', '');
                                        }

                                       
                                        // 跳转搜索页面
                                        location.href=url;
                                        return false;
                                    }
                                </script>
								

var url="{Router::search_url($params, ['keyword', 'catid'], ['mykeyword', NULL],'download')}";