diff --git a/src/api/infra/demo/demo03/normal/index.ts b/src/api/infra/demo/demo03/normal/index.ts
index f15ee1dc..56a824dd 100644
--- a/src/api/infra/demo/demo03/normal/index.ts
+++ b/src/api/infra/demo/demo03/normal/index.ts
@@ -1,53 +1,81 @@
 import request from '@/config/axios'
+import type { Dayjs } from 'dayjs';
 
-export interface Demo03StudentVO {
-  id: number
-  name: string
-  sex: number
-  birthday: Date
-  description: string
+/** 学生课程信息 */
+export interface Demo03Course {
+  id: number; // 编号
+  studentId?: number; // 学生编号
+  name?: string; // 名字
+  score?: number; // 分数
 }
 
-// 查询学生分页
-export const getDemo03StudentPage = async (params) => {
-  return await request.get({ url: `/infra/demo03-student/page`, params })
+/** 学生班级信息 */
+export interface Demo03Grade {
+  id: number; // 编号
+  studentId?: number; // 学生编号
+  name?: string; // 名字
+  teacher?: string; // 班主任
 }
 
-// 查询学生详情
-export const getDemo03Student = async (id: number) => {
-  return await request.get({ url: `/infra/demo03-student/get?id=` + id })
+/** 学生信息 */
+export interface Demo03Student {
+  id: number; // 编号
+  name?: string; // 名字
+  sex?: number; // 性别
+  birthday?: string | Dayjs; // 出生日期
+  description?: string; // 简介
+  demo03courses?: Demo03Course[]
+  demo03grade?: Demo03Grade
 }
 
-// 新增学生
-export const createDemo03Student = async (data: Demo03StudentVO) => {
-  return await request.post({ url: `/infra/demo03-student/create`, data })
-}
+// 学生 API
+export const Demo03StudentApi = {
+  // 查询学生分页
+  getDemo03StudentPage: async (params: any) => {
+    return await request.get({ url: `/infra/demo03-student-normal/page`, params })
+  },
 
-// 修改学生
-export const updateDemo03Student = async (data: Demo03StudentVO) => {
-  return await request.put({ url: `/infra/demo03-student/update`, data })
-}
+  // 查询学生详情
+  getDemo03Student: async (id: number) => {
+    return await request.get({ url: `/infra/demo03-student-normal/get?id=` + id })
+  },
 
-// 删除学生
-export const deleteDemo03Student = async (id: number) => {
-  return await request.delete({ url: `/infra/demo03-student/delete?id=` + id })
-}
+  // 新增学生
+  createDemo03Student: async (data: Demo03Student) => {
+    return await request.post({ url: `/infra/demo03-student-normal/create`, data })
+  },
 
-// 导出学生 Excel
-export const exportDemo03Student = async (params) => {
-  return await request.download({ url: `/infra/demo03-student/export-excel`, params })
-}
+  // 修改学生
+  updateDemo03Student: async (data: Demo03Student) => {
+    return await request.put({ url: `/infra/demo03-student-normal/update`, data })
+  },
+
+  // 删除学生
+  deleteDemo03Student: async (id: number) => {
+    return await request.delete({ url: `/infra/demo03-student-normal/delete?id=` + id })
+  },
+
+  /** 批量删除学生 */
+  deleteDemo03StudentList: async (ids: number[]) => {
+    return await request.delete({ url: `/infra/demo03-student-normal/delete-list?ids=${ids.join(',')}` })
+  },
+
+  // 导出学生 Excel
+  exportDemo03Student: async (params) => {
+    return await request.download({ url: `/infra/demo03-student-normal/export-excel`, params })
+  },
 
 // ==================== 子表（学生课程） ====================
 
-// 获得学生课程列表
-export const getDemo03CourseListByStudentId = async (studentId) => {
-  return await request.get({ url: `/infra/demo03-student/demo03-course/list-by-student-id?studentId=` + studentId })
-}
+  // 获得学生课程列表
+  getDemo03CourseListByStudentId: async (studentId) => {
+    return await request.get({ url: `/infra/demo03-student-normal/demo03-course/list-by-student-id?studentId=` + studentId })
+  },
 
 // ==================== 子表（学生班级） ====================
 
-// 获得学生班级
-export const getDemo03GradeByStudentId = async (studentId) => {
-  return await request.get({ url: `/infra/demo03-student/demo03-grade/get-by-student-id?studentId=` + studentId })
-}
\ No newline at end of file
+  // 获得学生班级
+  getDemo03GradeByStudentId: async (studentId) => {
+    return await request.get({ url: `/infra/demo03-student-normal/demo03-grade/get-by-student-id?studentId=` + studentId })
+  },
+}
diff --git a/src/views/infra/demo/demo03/normal/Demo03StudentForm.vue b/src/views/infra/demo/demo03/normal/Demo03StudentForm.vue
index 00508228..fc38099b 100644
--- a/src/views/infra/demo/demo03/normal/Demo03StudentForm.vue
+++ b/src/views/infra/demo/demo03/normal/Demo03StudentForm.vue
@@ -50,10 +50,13 @@
 </template>
 <script setup lang="ts">
 import { getIntDictOptions, DICT_TYPE } from '@/utils/dict'
-import * as Demo03StudentApi from '@/api/infra/demo/demo03/normal'
+import { Demo03StudentApi, Demo03Student } from '@/api/infra/demo/demo03/normal'
 import Demo03CourseForm from './components/Demo03CourseForm.vue'
 import Demo03GradeForm from './components/Demo03GradeForm.vue'
 
+/** 学生 表单 */
+defineOptions({ name: 'Demo03StudentForm' })
+
 const { t } = useI18n() // 国际化
 const message = useMessage() // 消息弹窗
 
@@ -66,13 +69,13 @@ const formData = ref({
   name: undefined,
   sex: undefined,
   birthday: undefined,
-  description: undefined
+  description: undefined,
 })
 const formRules = reactive({
   name: [{ required: true, message: '名字不能为空', trigger: 'blur' }],
   sex: [{ required: true, message: '性别不能为空', trigger: 'blur' }],
   birthday: [{ required: true, message: '出生日期不能为空', trigger: 'blur' }],
-  description: [{ required: true, message: '简介不能为空', trigger: 'blur' }]
+  description: [{ required: true, message: '简介不能为空', trigger: 'blur' }],
 })
 const formRef = ref() // 表单 Ref
 
@@ -120,7 +123,7 @@ const submitForm = async () => {
   // 提交请求
   formLoading.value = true
   try {
-    const data = formData.value as unknown as Demo03StudentApi.Demo03StudentVO
+    const data = formData.value as unknown as Demo03Student
     // 拼接子表的数据
     data.demo03Courses = demo03CourseFormRef.value.getData()
     data.demo03Grade = demo03GradeFormRef.value.getData()
@@ -146,8 +149,8 @@ const resetForm = () => {
     name: undefined,
     sex: undefined,
     birthday: undefined,
-    description: undefined
+    description: undefined,
   }
   formRef.value?.resetFields()
 }
-</script>
\ No newline at end of file
+</script>
diff --git a/src/views/infra/demo/demo03/normal/components/Demo03CourseForm.vue b/src/views/infra/demo/demo03/normal/components/Demo03CourseForm.vue
index b6f58572..7d617887 100644
--- a/src/views/infra/demo/demo03/normal/components/Demo03CourseForm.vue
+++ b/src/views/infra/demo/demo03/normal/components/Demo03CourseForm.vue
@@ -35,17 +35,17 @@
   </el-row>
 </template>
 <script setup lang="ts">
-import * as Demo03StudentApi from '@/api/infra/demo/demo03/normal'
+import { Demo03StudentApi } from '@/api/infra/demo/demo03/normal'
 
 const props = defineProps<{
-  studentId: undefined // 学生编号（主表的关联字段）
+  studentId: number // 学生编号（主表的关联字段）
 }>()
 const formLoading = ref(false) // 表单的加载中
-const formData = ref([])
+const formData = ref<any[]>([])
 const formRules = reactive({
   studentId: [{ required: true, message: '学生编号不能为空', trigger: 'blur' }],
   name: [{ required: true, message: '名字不能为空', trigger: 'blur' }],
-  score: [{ required: true, message: '分数不能为空', trigger: 'blur' }]
+  score: [{ required: true, message: '分数不能为空', trigger: 'blur' }],
 })
 const formRef = ref() // 表单 Ref
 
@@ -75,9 +75,9 @@ const handleAdd = () => {
     id: undefined,
     studentId: undefined,
     name: undefined,
-    score: undefined
+    score: undefined,
   }
-  row.studentId = props.studentId
+  row.studentId = props.studentId as any
   formData.value.push(row)
 }
 
@@ -97,4 +97,4 @@ const getData = () => {
 }
 
 defineExpose({ validate, getData })
-</script>
\ No newline at end of file
+</script>
diff --git a/src/views/infra/demo/demo03/normal/components/Demo03GradeForm.vue b/src/views/infra/demo/demo03/normal/components/Demo03GradeForm.vue
index 12653b6c..9aa8f7dc 100644
--- a/src/views/infra/demo/demo03/normal/components/Demo03GradeForm.vue
+++ b/src/views/infra/demo/demo03/normal/components/Demo03GradeForm.vue
@@ -6,7 +6,7 @@
     label-width="100px"
     v-loading="formLoading"
   >
-     <el-form-item label="名字" prop="name">
+    <el-form-item label="名字" prop="name">
       <el-input v-model="formData.name" placeholder="请输入名字" />
     </el-form-item>
     <el-form-item label="班主任" prop="teacher">
@@ -15,17 +15,17 @@
   </el-form>
 </template>
 <script setup lang="ts">
-import * as Demo03StudentApi from '@/api/infra/demo/demo03/normal'
+import { Demo03StudentApi } from '@/api/infra/demo/demo03/normal'
 
 const props = defineProps<{
-  studentId: undefined // 学生编号（主表的关联字段）
+  studentId: number // 学生编号（主表的关联字段）
 }>()
 const formLoading = ref(false) // 表单的加载中
-const formData = ref([])
+const formData = ref({})
 const formRules = reactive({
   studentId: [{ required: true, message: '学生编号不能为空', trigger: 'blur' }],
   name: [{ required: true, message: '名字不能为空', trigger: 'blur' }],
-  teacher: [{ required: true, message: '班主任不能为空', trigger: 'blur' }]
+  teacher: [{ required: true, message: '班主任不能为空', trigger: 'blur' }],
 })
 const formRef = ref() // 表单 Ref
 
@@ -69,4 +69,4 @@ const getData = () => {
 }
 
 defineExpose({ validate, getData })
-</script>
\ No newline at end of file
+</script>
diff --git a/src/views/infra/demo/demo03/normal/index.vue b/src/views/infra/demo/demo03/normal/index.vue
index 8a5dc1a9..5c3ebf4d 100644
--- a/src/views/infra/demo/demo03/normal/index.vue
+++ b/src/views/infra/demo/demo03/normal/index.vue
@@ -1,6 +1,4 @@
 <template>
-  <doc-alert title="代码生成（主子表）" url="https://doc.iocoder.cn/new-feature/master-sub/" />
-
   <ContentWrap>
     <!-- 搜索工作栏 -->
     <el-form
@@ -20,7 +18,12 @@
         />
       </el-form-item>
       <el-form-item label="性别" prop="sex">
-        <el-select v-model="queryParams.sex" placeholder="请选择性别" clearable class="!w-240px">
+        <el-select
+          v-model="queryParams.sex"
+          placeholder="请选择性别"
+          clearable
+          class="!w-240px"
+        >
           <el-option
             v-for="dict in getIntDictOptions(DICT_TYPE.SYSTEM_USER_SEX)"
             :key="dict.value"
@@ -37,7 +40,7 @@
           start-placeholder="开始日期"
           end-placeholder="结束日期"
           :default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]"
-          class="!w-240px"
+          class="!w-220px"
         />
       </el-form-item>
       <el-form-item>
@@ -60,13 +63,30 @@
         >
           <Icon icon="ep:download" class="mr-5px" /> 导出
         </el-button>
+        <el-button
+            type="danger"
+            plain
+            :disabled="isEmpty(checkedIds)"
+            @click="handleDeleteBatch"
+            v-hasPermi="['infra:demo03-student:delete']"
+        >
+          <Icon icon="ep:delete" class="mr-5px" /> 批量删除
+        </el-button>
       </el-form-item>
     </el-form>
   </ContentWrap>
 
   <!-- 列表 -->
   <ContentWrap>
-    <el-table v-loading="loading" :data="list" :stripe="true" :show-overflow-tooltip="true">
+    <el-table
+        row-key="id"
+        v-loading="loading"
+        :data="list"
+        :stripe="true"
+        :show-overflow-tooltip="true"
+        @selection-change="handleRowCheckboxChange"
+    >
+    <el-table-column type="selection" width="55" />
       <el-table-column label="编号" align="center" prop="id" />
       <el-table-column label="名字" align="center" prop="name" />
       <el-table-column label="性别" align="center" prop="sex">
@@ -89,7 +109,7 @@
         :formatter="dateFormatter"
         width="180px"
       />
-      <el-table-column label="操作" align="center">
+      <el-table-column label="操作" align="center" min-width="120px">
         <template #default="scope">
           <el-button
             link
@@ -125,26 +145,28 @@
 
 <script setup lang="ts">
 import { getIntDictOptions, DICT_TYPE } from '@/utils/dict'
+import { isEmpty } from '@/utils/is'
 import { dateFormatter } from '@/utils/formatTime'
 import download from '@/utils/download'
-import * as Demo03StudentApi from '@/api/infra/demo/demo03/normal'
+import { Demo03StudentApi, Demo03Student } from '@/api/infra/demo/demo03/normal'
 import Demo03StudentForm from './Demo03StudentForm.vue'
 
+/** 学生 列表 */
 defineOptions({ name: 'Demo03Student' })
 
 const message = useMessage() // 消息弹窗
 const { t } = useI18n() // 国际化
 
 const loading = ref(true) // 列表的加载中
-const list = ref([]) // 列表的数据
+const list = ref<Demo03Student[]>([]) // 列表的数据
 const total = ref(0) // 列表的总页数
 const queryParams = reactive({
   pageNo: 1,
   pageSize: 10,
-  name: null,
-  sex: null,
-  description: null,
-  createTime: []
+  name: undefined,
+  sex: undefined,
+  description: undefined,
+  createTime: [],
 })
 const queryFormRef = ref() // 搜索的表单
 const exportLoading = ref(false) // 导出的加载中
@@ -192,6 +214,22 @@ const handleDelete = async (id: number) => {
   } catch {}
 }
 
+/** 批量删除学生 */
+const handleDeleteBatch = async () => {
+  try {
+    // 删除的二次确认
+    await message.delConfirm()
+    await Demo03StudentApi.deleteDemo03StudentList(checkedIds.value);
+    message.success(t('common.delSuccess'))
+    await getList();
+  } catch {}
+}
+
+const checkedIds = ref<number[]>([])
+const handleRowCheckboxChange = (records: Demo03Student[]) => {
+  checkedIds.value = records.map((item) => item.id);
+}
+
 /** 导出按钮操作 */
 const handleExport = async () => {
   try {