diff --git a/src/api/infra/demo12/index.ts b/src/api/infra/demo12/index.ts
new file mode 100644
index 00000000..33c3fb4f
--- /dev/null
+++ b/src/api/infra/demo12/index.ts
@@ -0,0 +1,57 @@
+import request from '@/config/axios'
+
+export interface Demo12StudentVO {
+  id: number
+  name: string
+  description: string
+  birthday: Date
+  sex: number
+  enabled: boolean
+  avatar: string
+  video: string
+  memo: string
+}
+
+// 查询学生列表
+export const getDemo12StudentPage = async (params) => {
+  return await request.get({ url: `/infra/demo12-student/page`, params })
+}
+
+// 查询学生详情
+export const getDemo12Student = async (id: number) => {
+  return await request.get({ url: `/infra/demo12-student/get?id=` + id })
+}
+
+// 新增学生
+export const createDemo12Student = async (data: Demo12StudentVO) => {
+  return await request.post({ url: `/infra/demo12-student/create`, data })
+}
+
+// 修改学生
+export const updateDemo12Student = async (data: Demo12StudentVO) => {
+  return await request.put({ url: `/infra/demo12-student/update`, data })
+}
+
+// 删除学生
+export const deleteDemo12Student = async (id: number) => {
+  return await request.delete({ url: `/infra/demo12-student/delete?id=` + id })
+}
+
+// 导出学生 Excel
+export const exportDemo12Student = async (params) => {
+  return await request.download({ url: `/infra/demo12-student/export-excel`, params })
+}
+
+// ==================== 子表（学生联系人） ====================
+
+// 获得学生联系人列表
+export const getDemo12StudentContactListByStudentId = async (studentId) => {
+  return await request.get({ url: `/infra/demo12-student/demo12-student/list-by-student-id?studentId=` + studentId })
+}
+
+// ==================== 子表（学生班主任） ====================
+
+// 获得学生班主任
+export const getDemo12StudentTeacherByStudentId = async (studentId) => {
+  return await request.get({ url: `/infra/demo12-student/demo12-student/get-by-student-id?studentId=` + studentId })
+}
\ No newline at end of file
diff --git a/src/views/infra/demo11/components/Demo11StudentContactForm.vue b/src/views/infra/demo11/components/Demo11StudentContactForm.vue
index 1ab017e8..ba900017 100644
--- a/src/views/infra/demo11/components/Demo11StudentContactForm.vue
+++ b/src/views/infra/demo11/components/Demo11StudentContactForm.vue
@@ -85,6 +85,11 @@
           </el-form-item>
         </template>
       </el-table-column>
+      <el-table-column align="center" fixed="right" label="操作" width="60">
+        <template #default="{ $index }">
+          <el-button @click="handleDelete($index)" link>—</el-button>
+        </template>
+      </el-table-column>
     </el-table>
   </el-form>
   <el-row justify="center" class="mt-3">
diff --git a/src/views/infra/demo12/Demo12StudentForm.vue b/src/views/infra/demo12/Demo12StudentForm.vue
new file mode 100644
index 00000000..d3cb482d
--- /dev/null
+++ b/src/views/infra/demo12/Demo12StudentForm.vue
@@ -0,0 +1,183 @@
+<template>
+  <Dialog :title="dialogTitle" v-model="dialogVisible">
+    <el-form
+      ref="formRef"
+      :model="formData"
+      :rules="formRules"
+      label-width="100px"
+      v-loading="formLoading"
+    >
+      <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="简介" prop="description">
+        <el-input v-model="formData.description" type="textarea" placeholder="请输入简介" />
+      </el-form-item>
+      <el-form-item label="出生日期" prop="birthday">
+        <el-date-picker
+          v-model="formData.birthday"
+          type="date"
+          value-format="x"
+          placeholder="选择出生日期"
+        />
+      </el-form-item>
+      <el-form-item label="性别" prop="sex">
+        <el-select v-model="formData.sex" placeholder="请选择性别">
+          <el-option
+            v-for="dict in getIntDictOptions(DICT_TYPE.SYSTEM_USER_SEX)"
+            :key="dict.value"
+            :label="dict.label"
+            :value="dict.value"
+          />
+        </el-select>
+      </el-form-item>
+      <el-form-item label="是否有效" prop="enabled">
+        <el-radio-group v-model="formData.enabled">
+          <el-radio
+            v-for="dict in getBoolDictOptions(DICT_TYPE.INFRA_BOOLEAN_STRING)"
+            :key="dict.value"
+            :label="dict.value"
+          >
+            {{ dict.label }}
+          </el-radio>
+        </el-radio-group>
+      </el-form-item>
+      <el-form-item label="头像">
+        <UploadImg v-model="formData.avatar" />
+      </el-form-item>
+      <el-form-item label="附件" prop="video">
+        <UploadFile v-model="formData.video" />
+      </el-form-item>
+      <el-form-item label="备注" prop="memo">
+        <Editor v-model="formData.memo" height="150px" />
+      </el-form-item>
+    </el-form>
+    <!-- 子表的表单 -->
+    <el-tabs v-model="subTabsName">
+      <el-tab-pane label="学生联系人" name="demo12StudentContact">
+        <Demo12StudentContactForm ref="demo12StudentContactFormRef" :student-id="formData.id" />
+      </el-tab-pane>
+      <el-tab-pane label="学生班主任" name="demo12StudentTeacher">
+        <Demo12StudentTeacherForm ref="demo12StudentTeacherFormRef" :student-id="formData.id" />
+      </el-tab-pane>
+    </el-tabs>
+    <template #footer>
+      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
+      <el-button @click="dialogVisible = false">取 消</el-button>
+    </template>
+  </Dialog>
+</template>
+<script setup lang="ts">
+import { getIntDictOptions, getBoolDictOptions, DICT_TYPE } from '@/utils/dict'
+import * as Demo12StudentApi from '@/api/infra/demo12'
+import Demo12StudentContactForm from './components/Demo12StudentContactForm.vue'
+import Demo12StudentTeacherForm from './components/Demo12StudentTeacherForm.vue'
+
+const { t } = useI18n() // 国际化
+const message = useMessage() // 消息弹窗
+
+const dialogVisible = ref(false) // 弹窗的是否展示
+const dialogTitle = ref('') // 弹窗的标题
+const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
+const formType = ref('') // 表单的类型：create - 新增；update - 修改
+const formData = ref({
+  id: undefined,
+  name: undefined,
+  description: undefined,
+  birthday: undefined,
+  sex: undefined,
+  enabled: undefined,
+  avatar: undefined,
+  video: undefined,
+  memo: undefined
+})
+const formRules = reactive({
+  name: [{ required: true, message: '名字不能为空', trigger: 'blur' }],
+  description: [{ required: true, message: '简介不能为空', trigger: 'blur' }],
+  birthday: [{ required: true, message: '出生日期不能为空', trigger: 'blur' }],
+  sex: [{ required: true, message: '性别不能为空', trigger: 'change' }],
+  enabled: [{ required: true, message: '是否有效不能为空', trigger: 'blur' }],
+  avatar: [{ required: true, message: '头像不能为空', trigger: 'blur' }],
+  memo: [{ required: true, message: '备注不能为空', trigger: 'blur' }]
+})
+const formRef = ref() // 表单 Ref
+
+/** 子表的表单 */
+const subTabsName = ref('demo12StudentContact')
+const demo12StudentContactFormRef = ref()
+const demo12StudentTeacherFormRef = ref()
+
+/** 打开弹窗 */
+const open = async (type: string, id?: number) => {
+  dialogVisible.value = true
+  dialogTitle.value = t('action.' + type)
+  formType.value = type
+  resetForm()
+  // 修改时，设置数据
+  if (id) {
+    formLoading.value = true
+    try {
+      formData.value = await Demo12StudentApi.getDemo12Student(id)
+    } finally {
+      formLoading.value = false
+    }
+  }
+}
+defineExpose({ open }) // 提供 open 方法，用于打开弹窗
+
+/** 提交表单 */
+const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
+const submitForm = async () => {
+  // 校验表单
+  await formRef.value.validate()
+  // 校验子表单
+  try {
+    await demo12StudentContactFormRef.value.validate()
+  } catch (e) {
+    subTabsName.value = 'demo12StudentContact'
+    return
+  }
+  try {
+    await demo12StudentTeacherFormRef.value.validate()
+  } catch (e) {
+    subTabsName.value = 'demo12StudentTeacher'
+    return
+  }
+  // 提交请求
+  formLoading.value = true
+  try {
+    const data = formData.value as unknown as Demo12StudentApi.Demo12StudentVO
+    // 拼接子表的数据
+    data.demo12StudentContacts = demo12StudentContactFormRef.value.getData()
+    data.demo12StudentTeacher = demo12StudentTeacherFormRef.value.getData()
+    if (formType.value === 'create') {
+      await Demo12StudentApi.createDemo12Student(data)
+      message.success(t('common.createSuccess'))
+    } else {
+      await Demo12StudentApi.updateDemo12Student(data)
+      message.success(t('common.updateSuccess'))
+    }
+    dialogVisible.value = false
+    // 发送操作成功的事件
+    emit('success')
+  } finally {
+    formLoading.value = false
+  }
+}
+
+/** 重置表单 */
+const resetForm = () => {
+  formData.value = {
+    id: undefined,
+    name: undefined,
+    description: undefined,
+    birthday: undefined,
+    sex: undefined,
+    enabled: undefined,
+    avatar: undefined,
+    video: undefined,
+    memo: undefined
+  }
+  formRef.value?.resetFields()
+}
+</script>
\ No newline at end of file
diff --git a/src/views/infra/demo12/components/Demo12StudentContactForm.vue b/src/views/infra/demo12/components/Demo12StudentContactForm.vue
new file mode 100644
index 00000000..d71f6146
--- /dev/null
+++ b/src/views/infra/demo12/components/Demo12StudentContactForm.vue
@@ -0,0 +1,5 @@
+<template>
+  <div>123</div>
+</template>
+<script setup lang="ts">
+</script>
\ No newline at end of file
diff --git a/src/views/infra/demo12/components/Demo12StudentContactList.vue b/src/views/infra/demo12/components/Demo12StudentContactList.vue
new file mode 100644
index 00000000..65ed9df1
--- /dev/null
+++ b/src/views/infra/demo12/components/Demo12StudentContactList.vue
@@ -0,0 +1,63 @@
+<template>
+  <!-- 列表 -->
+  <ContentWrap>
+    <el-table v-loading="loading" :data="list" :stripe="true" :show-overflow-tooltip="true">
+      <el-table-column label="编号" align="center" prop="id" />
+      <el-table-column label="学生编号" align="center" prop="studentId" />
+      <el-table-column label="名字" align="center" prop="name" />
+      <el-table-column label="简介" align="center" prop="description" />
+      <el-table-column
+        label="出生日期"
+        align="center"
+        prop="birthday"
+        :formatter="dateFormatter"
+        width="180px"
+      />
+      <el-table-column label="性别" align="center" prop="sex">
+        <template #default="scope">
+          <dict-tag :type="DICT_TYPE.SYSTEM_USER_SEX" :value="scope.row.sex" />
+        </template>
+      </el-table-column>
+      <el-table-column label="是否有效" align="center" prop="enabled">
+        <template #default="scope">
+          <dict-tag :type="DICT_TYPE.INFRA_BOOLEAN_STRING" :value="scope.row.enabled" />
+        </template>
+      </el-table-column>
+      <el-table-column label="头像" align="center" prop="avatar" />
+      <el-table-column label="附件" align="center" prop="video" />
+      <el-table-column label="备注" align="center" prop="memo" />
+      <el-table-column
+        label="创建时间"
+        align="center"
+        prop="createTime"
+        :formatter="dateFormatter"
+        width="180px"
+      />
+    </el-table>
+  </ContentWrap>
+</template>
+
+<script setup lang="ts">
+import { DICT_TYPE } from '@/utils/dict'
+import * as Demo12StudentApi from '@/api/infra/demo12'
+const props = defineProps<{
+  studentId: undefined // 学生编号（主表的关联字段）
+}>()
+const loading = ref(true) // 列表的加载中
+const list = ref([]) // 列表的数据
+
+/** 查询列表 */
+const getList = async () => {
+  loading.value = true
+  try {
+    list.value = await Demo12StudentApi.getDemo12StudentContactListByStudentId(studentId.props)
+  } finally {
+    loading.value = false
+  }
+}
+
+/** 初始化 **/
+onMounted(() => {
+  getList()
+})
+</script>
\ No newline at end of file
diff --git a/src/views/infra/demo12/components/Demo12StudentTeacherForm.vue b/src/views/infra/demo12/components/Demo12StudentTeacherForm.vue
new file mode 100644
index 00000000..d71f6146
--- /dev/null
+++ b/src/views/infra/demo12/components/Demo12StudentTeacherForm.vue
@@ -0,0 +1,5 @@
+<template>
+  <div>123</div>
+</template>
+<script setup lang="ts">
+</script>
\ No newline at end of file
diff --git a/src/views/infra/demo12/components/Demo12StudentTeacherList.vue b/src/views/infra/demo12/components/Demo12StudentTeacherList.vue
new file mode 100644
index 00000000..55f6845b
--- /dev/null
+++ b/src/views/infra/demo12/components/Demo12StudentTeacherList.vue
@@ -0,0 +1,67 @@
+<template>
+  <!-- 列表 -->
+  <ContentWrap>
+    <el-table v-loading="loading" :data="list" :stripe="true" :show-overflow-tooltip="true">
+      <el-table-column label="编号" align="center" prop="id" />
+      <el-table-column label="学生编号" align="center" prop="studentId" />
+      <el-table-column label="名字" align="center" prop="name" />
+      <el-table-column label="简介" align="center" prop="description" />
+      <el-table-column
+        label="出生日期"
+        align="center"
+        prop="birthday"
+        :formatter="dateFormatter"
+        width="180px"
+      />
+      <el-table-column label="性别" align="center" prop="sex">
+        <template #default="scope">
+          <dict-tag :type="DICT_TYPE.SYSTEM_USER_SEX" :value="scope.row.sex" />
+        </template>
+      </el-table-column>
+      <el-table-column label="是否有效" align="center" prop="enabled">
+        <template #default="scope">
+          <dict-tag :type="DICT_TYPE.INFRA_BOOLEAN_STRING" :value="scope.row.enabled" />
+        </template>
+      </el-table-column>
+      <el-table-column label="头像" align="center" prop="avatar" />
+      <el-table-column label="附件" align="center" prop="video" />
+      <el-table-column label="备注" align="center" prop="memo" />
+      <el-table-column
+        label="创建时间"
+        align="center"
+        prop="createTime"
+        :formatter="dateFormatter"
+        width="180px"
+      />
+    </el-table>
+  </ContentWrap>
+</template>
+
+<script setup lang="ts">
+import { DICT_TYPE } from '@/utils/dict'
+import * as Demo12StudentApi from '@/api/infra/demo12'
+const props = defineProps<{
+  studentId: undefined // 学生编号（主表的关联字段）
+}>()
+const loading = ref(true) // 列表的加载中
+const list = ref([]) // 列表的数据
+
+/** 查询列表 */
+const getList = async () => {
+  loading.value = true
+  try {
+    const data = await Demo12StudentApi.getDemo12StudentTeacherByStudentId(studentId.props)
+    if (!data) {
+      return
+    }
+    list.value.push(data)
+  } finally {
+    loading.value = false
+  }
+}
+
+/** 初始化 **/
+onMounted(() => {
+  getList()
+})
+</script>
\ No newline at end of file
diff --git a/src/views/infra/demo12/index.vue b/src/views/infra/demo12/index.vue
new file mode 100644
index 00000000..c5a82a4c
--- /dev/null
+++ b/src/views/infra/demo12/index.vue
@@ -0,0 +1,252 @@
+<template>
+  <ContentWrap>
+    <!-- 搜索工作栏 -->
+    <el-form
+      class="-mb-15px"
+      :model="queryParams"
+      ref="queryFormRef"
+      :inline="true"
+      label-width="68px"
+    >
+      <el-form-item label="名字" prop="name">
+        <el-input
+          v-model="queryParams.name"
+          placeholder="请输入名字"
+          clearable
+          @keyup.enter="handleQuery"
+          class="!w-240px"
+        />
+      </el-form-item>
+      <el-form-item label="出生日期" prop="birthday">
+        <el-date-picker
+          v-model="queryParams.birthday"
+          value-format="YYYY-MM-DD"
+          type="date"
+          placeholder="选择出生日期"
+          clearable
+          class="!w-240px"
+        />
+      </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-option
+            v-for="dict in getIntDictOptions(DICT_TYPE.SYSTEM_USER_SEX)"
+            :key="dict.value"
+            :label="dict.label"
+            :value="dict.value"
+          />
+        </el-select>
+      </el-form-item>
+      <el-form-item label="是否有效" prop="enabled">
+        <el-select
+          v-model="queryParams.enabled"
+          placeholder="请选择是否有效"
+          clearable
+          class="!w-240px"
+        >
+          <el-option
+            v-for="dict in getBoolDictOptions(DICT_TYPE.INFRA_BOOLEAN_STRING)"
+            :key="dict.value"
+            :label="dict.label"
+            :value="dict.value"
+          />
+        </el-select>
+      </el-form-item>
+      <el-form-item label="创建时间" prop="createTime">
+        <el-date-picker
+          v-model="queryParams.createTime"
+          value-format="YYYY-MM-DD HH:mm:ss"
+          type="daterange"
+          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"
+        />
+      </el-form-item>
+      <el-form-item>
+        <el-button @click="handleQuery"><Icon icon="ep:search" class="mr-5px" /> 搜索</el-button>
+        <el-button @click="resetQuery"><Icon icon="ep:refresh" class="mr-5px" /> 重置</el-button>
+        <el-button
+          type="primary"
+          plain
+          @click="openForm('create')"
+          v-hasPermi="['infra:demo12-student:create']"
+        >
+          <Icon icon="ep:plus" class="mr-5px" /> 新增
+        </el-button>
+        <el-button
+          type="success"
+          plain
+          @click="handleExport"
+          :loading="exportLoading"
+          v-hasPermi="['infra:demo12-student:export']"
+        >
+          <Icon icon="ep:download" class="mr-5px" /> 导出
+        </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-column label="编号" align="center" prop="id" />
+      <el-table-column label="名字" align="center" prop="name" />
+      <el-table-column label="简介" align="center" prop="description" />
+      <el-table-column
+        label="出生日期"
+        align="center"
+        prop="birthday"
+        :formatter="dateFormatter"
+        width="180px"
+      />
+      <el-table-column label="性别" align="center" prop="sex">
+        <template #default="scope">
+          <dict-tag :type="DICT_TYPE.SYSTEM_USER_SEX" :value="scope.row.sex" />
+        </template>
+      </el-table-column>
+      <el-table-column label="是否有效" align="center" prop="enabled">
+        <template #default="scope">
+          <dict-tag :type="DICT_TYPE.INFRA_BOOLEAN_STRING" :value="scope.row.enabled" />
+        </template>
+      </el-table-column>
+      <el-table-column label="头像" align="center" prop="avatar" />
+      <el-table-column label="附件" align="center" prop="video" />
+      <el-table-column label="备注" align="center" prop="memo" />
+      <el-table-column
+        label="创建时间"
+        align="center"
+        prop="createTime"
+        :formatter="dateFormatter"
+        width="180px"
+      />
+      <el-table-column label="操作" align="center">
+        <template #default="scope">
+          <el-button
+            link
+            type="primary"
+            @click="openForm('update', scope.row.id)"
+            v-hasPermi="['infra:demo12-student:update']"
+          >
+            编辑
+          </el-button>
+          <el-button
+            link
+            type="danger"
+            @click="handleDelete(scope.row.id)"
+            v-hasPermi="['infra:demo12-student:delete']"
+          >
+            删除
+          </el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+    <!-- 分页 -->
+    <Pagination
+      :total="total"
+      v-model:page="queryParams.pageNo"
+      v-model:limit="queryParams.pageSize"
+      @pagination="getList"
+    />
+  </ContentWrap>
+
+  <!-- 表单弹窗：添加/修改 -->
+  <Demo12StudentForm ref="formRef" @success="getList" />
+</template>
+
+<script setup lang="ts">
+import { getIntDictOptions, getBoolDictOptions, DICT_TYPE } from '@/utils/dict'
+import { dateFormatter } from '@/utils/formatTime'
+import download from '@/utils/download'
+import * as Demo12StudentApi from '@/api/infra/demo12'
+import Demo12StudentForm from './Demo12StudentForm.vue'
+
+defineOptions({ name: 'InfraDemo12Student' })
+
+const message = useMessage() // 消息弹窗
+const { t } = useI18n() // 国际化
+
+const loading = ref(true) // 列表的加载中
+const total = ref(0) // 列表的总页数
+const list = ref([]) // 列表的数据
+const queryParams = reactive({
+  pageNo: 1,
+  pageSize: 10,
+  name: null,
+  birthday: null,
+  birthday: [],
+  sex: null,
+  enabled: null,
+  createTime: []
+})
+const queryFormRef = ref() // 搜索的表单
+const exportLoading = ref(false) // 导出的加载中
+
+/** 查询列表 */
+const getList = async () => {
+  loading.value = true
+  try {
+    const data = await Demo12StudentApi.getDemo12StudentPage(queryParams)
+    list.value = data.list
+    total.value = data.total
+  } finally {
+    loading.value = false
+  }
+}
+
+/** 搜索按钮操作 */
+const handleQuery = () => {
+  queryParams.pageNo = 1
+  getList()
+}
+
+/** 重置按钮操作 */
+const resetQuery = () => {
+  queryFormRef.value.resetFields()
+  handleQuery()
+}
+
+/** 添加/修改操作 */
+const formRef = ref()
+const openForm = (type: string, id?: number) => {
+  formRef.value.open(type, id)
+}
+
+/** 删除按钮操作 */
+const handleDelete = async (id: number) => {
+  try {
+    // 删除的二次确认
+    await message.delConfirm()
+    // 发起删除
+    await Demo12StudentApi.deleteDemo12Student(id)
+    message.success(t('common.delSuccess'))
+    // 刷新列表
+    await getList()
+  } catch {}
+}
+
+/** 导出按钮操作 */
+const handleExport = async () => {
+  try {
+    // 导出的二次确认
+    await message.exportConfirm()
+    // 发起导出
+    exportLoading.value = true
+    const data = await Demo12StudentApi.exportDemo12Student(queryParams)
+    download.excel(data, '学生.xls')
+  } catch {
+  } finally {
+    exportLoading.value = false
+  }
+}
+
+/** 初始化 **/
+onMounted(() => {
+  getList()
+})
+</script>
\ No newline at end of file