Layui二级菜单优化

大家好，又见面了，我是你们的朋友全栈君。

刚开始学习layui框架，碰到一个缺陷是二级菜单每次点击都会收缩到原始状态。用 Request.Url.ToString();获取URL判断点击页面前哪些节点是展开的，添加class=\”layui-nav-item layui-nav-itemed\”>（展开子节点）解决了。代码如下：

       for (var i = 0; i < data.length; i++) {
                            //添加头栏目
                            if (data[i].children.length > 0) {
                                var curFocus = null;
                                var curUrl = '@Request.Url.ToString()';
                                var hasFocusParent = null;
                                var clickTree = null;
                                for (var j = 0; j < data[i].children.length; j++) {
                                    if (curUrl.lastIndexOf(data[i].children[j].href) > 0) {
                                        clickTree = data[i].children[j].id;
                                        hasFocusParent = data[i].id;
                                    }
                                };
                                if (hasFocusParent == data[i].id) {
                                    item += "<li class=\"layui-nav-item layui-nav-itemed\">  <a href=\"javascript:;\">" + data[i].name + "</a><dl class=\"layui-nav-child\">";
                                    //class=\"layui-nav-item layui-nav-itemed\">展开子节点
                                }
                                else {
                                    item += "<li class=\"layui-nav-item\"><a href=\"javascript:;\">" + data[i].name + "</a><dl class=\"layui-nav-child\">";
                                }
                                for (var j = 0; j < data[i].children.length; j++) {
                                    if (data[i].children[j].id == clickTree) {

                                        item += "<dd style=\"background-color: #009688\"><a href=\"" + data[i].children[j].href + "\">" + data[i].children[j].name + "</a></dd>";

                                    } else {
                                        item += "<dd><a href=\"" + data[i].children[j].href + "\">" + data[i].children[j].name + "</a></dd>";
                                    }
                                };
                                item += "</dl></li>";
                            } else {
                                item += "<li class=\"layui-nav-item\"><a href=\"" + data[i].href + "\">" + data[i].name + "</a></li>";
                            }
                        };