feat：新增创建关卡页面

src/components/BreadCrumb.vue

@@ -42,6 +42,17 @@ export default {
             },
           ];
         }
+        if (n === "/leveladd" || n === "/LevelAdd") {
+          state.list = [
+            {
+              name: "学习路径",
+              href: "/learningpath",
+            },
+            {
+              name: "创建关卡",
+            },
+          ];
+        }
         if (n === "/projectmanage" || n === "/ProjectManage") {
           state.list = [
             {
@@ -66,6 +77,7 @@ export default {
             },
           ];
         }
+
         if (n === "/templatelibrary" || n === "/TemplateLibrary") {
           state.list = [
             {

src/components/NavLeft.vue

@@ -251,6 +251,12 @@ export default {
           selectedKeys: "sub1",
           pagename: "学习路径",
         },
+        {
+          href: "/leveladd",
+          openKeys: "sub1",
+          selectedKeys: "sub1",
+          pagename: "创建关卡",
+        },
         {
           href: "/projectmanage",
           openKeys: "sub2",