diff --git a/api/employ_api.py b/api/employ_api.py
index 009beed..d5fa658 100644
--- a/api/employ_api.py
+++ b/api/employ_api.py
@@ -1,6 +1,5 @@
 # api/employ_api.py
 # 本文件定义 学生就业信息 的所有 API 路由（Controller 层）
-from datetime import date
 from typing import List
 
 from fastapi import APIRouter,HTTPException
diff --git a/api/statistics_api.py b/api/statistics_api.py
index af7a624..6cf9602 100644
--- a/api/statistics_api.py
+++ b/api/statistics_api.py
@@ -10,12 +10,10 @@ from sqlalchemy import func
 from starlette import status
 
 from database import get_db
-from dao.users_dao import UserDAO
 from dao.statistics_dao import StatisticsDao
 from model.stu_model import StuInfo
 from scheme.statistics_scheme import StatsResponse, StuInfoAllExamAboveScore, FailingStudentItem, ClassExamAvgScoreItem, \
     TopSalaryStudentItem, StudentEmpDurationItem, ClassAvgEmpDurationItem, StudentAgeDetailItem
-from scheme.users import UserCreate, UserUpdate, UserResponse
 
 router = APIRouter()
 
diff --git a/dao/cls_mgmt_dao.py b/dao/cls_mgmt_dao.py
index bbdabe7..01fc5ff 100644
--- a/dao/cls_mgmt_dao.py
+++ b/dao/cls_mgmt_dao.py
@@ -5,7 +5,6 @@ from sqlalchemy.orm import Session
 
 from model.cls_mgmt_model import ClsMgmt
 from scheme.cls_mgmt_scheme import ClsMgmtResponse, ClsMgmtCreate
-from scheme.users import UserCreate, UserUpdate
 from typing import Optional, List
 
 class ClsMgmtDAO:
diff --git a/dao/statistics_dao.py b/dao/statistics_dao.py
index eab5757..6453fe3 100644
--- a/dao/statistics_dao.py
+++ b/dao/statistics_dao.py
@@ -2,15 +2,12 @@
 # 本文件封装对 所有相关表的 所有数据库操作（统计查询）
 from collections import defaultdict
 
-from dns.entropy import between
 from sqlalchemy.orm import Session, joinedload
 from sqlalchemy import func, case, and_, join, asc, desc
 
 from model import StudentEmployManage
 from model.stu_model import StuInfo
 from model.stu_score_model import StuScore
-from model.users import User
-from scheme.users import UserCreate, UserUpdate
 from typing import Optional, List, Dict
 from scheme.statistics_scheme import StatsResponse, ExamScoreItem, StuInfoAllExamAboveScore, FailingStudentItem, \
     ClassExamAvgScoreItem, TopSalaryStudentItem, StudentEmpDurationItem, ClassAvgEmpDurationItem, StudentAgeDetailItem
diff --git a/dao/stu_score_dao.py b/dao/stu_score_dao.py
index d5da1fe..4333da5 100644
--- a/dao/stu_score_dao.py
+++ b/dao/stu_score_dao.py
@@ -3,7 +3,6 @@
 from sqlalchemy import and_
 from sqlalchemy.orm import Session
 from model.stu_score_model import StuScore
-# from scheme.stu_score_scheme import
 from typing import Optional, List
 
 class StuScoreDAO:
diff --git a/dao/teacher_dao.py b/dao/teacher_dao.py
index 87f4e46..5542684 100644
--- a/dao/teacher_dao.py
+++ b/dao/teacher_dao.py
@@ -1,8 +1,5 @@
 # dao/teacher_dao.py
 # 本文件封装对 tes_info 表的所有数据库操作（增、删、改、查）
-from http.client import HTTPException
-from typing import List, Optional
-
 from sqlalchemy import or_
 from sqlalchemy.orm import Session
 
diff --git a/main.py b/main.py
index 83a248c..95b5cfa 100644
--- a/main.py
+++ b/main.py
@@ -4,8 +4,7 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
-from database import engine, Base
-from api import users, statistics_api, stu_score_api, cls_mgmt_api, employ_api,stu_api, teacher_api  # 导入 users 子路由
+from api import statistics_api, stu_score_api, cls_mgmt_api, employ_api,stu_api, teacher_api  # 导入 users 子路由
 
 # 1. 创建数据库表（如果表不存在）
 #    Base.metadata.create_all 会扫描所有继承 Base 的模型，生成对应的 CREATE TABLE 语句
@@ -29,8 +28,6 @@ app.add_middleware(
 )
 
 # 4. 注册子路由
-#    prefix 为路由前缀，所有用户接口都以 /api/users 开头
-app.include_router(users.router, prefix="/api/users", tags=["用户管理"])
 
 app.include_router(statistics_api.router, prefix="/api/stats", tags=["统计分析"])
 
diff --git a/model/cls_mgmt_model.py b/model/cls_mgmt_model.py
index 90e16f7..1263932 100644
--- a/model/cls_mgmt_model.py
+++ b/model/cls_mgmt_model.py
@@ -1,6 +1,5 @@
 from sqlalchemy import Column, Integer, String, DateTime, Date, ForeignKey
 from sqlalchemy.orm import relationship
-from sqlalchemy.sql import func
 from database import Base
 
 
diff --git a/scheme/cls_mgmt_scheme.py b/scheme/cls_mgmt_scheme.py
index f522971..ffeb7a0 100644
--- a/scheme/cls_mgmt_scheme.py
+++ b/scheme/cls_mgmt_scheme.py
@@ -1,8 +1,7 @@
 # import data
 from h11 import Data
-from pydantic import BaseModel, Field, ConfigDict,EmailStr
-from datetime import datetime, date
-from typing import Optional
+from pydantic import BaseModel, Field
+from datetime import date
 
 # ---------- 请求模型 ----------
 class ClsMgmtCreate(BaseModel):
diff --git a/scheme/employ_scheme.py b/scheme/employ_scheme.py
index ef36d36..4d30ff5 100644
--- a/scheme/employ_scheme.py
+++ b/scheme/employ_scheme.py
@@ -3,8 +3,7 @@ from datetime import date
 from decimal import Decimal
 from typing import List
 
-from pydantic import Field, field_validator, model_validator, ValidationError, BaseModel
-from database import Base
+from pydantic import Field, model_validator, BaseModel
 
 # ---------- -------------------------------请求模型 ------------------------------------------------
 class YearMonthDay(BaseModel):
diff --git a/scheme/statistics_scheme.py b/scheme/statistics_scheme.py
index 0409579..80aaf83 100644
--- a/scheme/statistics_scheme.py
+++ b/scheme/statistics_scheme.py
@@ -1,6 +1,6 @@
 # scheme/statistics_scheme.py
 from pydantic import BaseModel, Field, EmailStr
-from datetime import datetime, date
+from datetime import date
 from typing import Optional, List
 
 
diff --git a/scheme/stu_scheme.py b/scheme/stu_scheme.py
index afaa22b..a04bdd2 100644
--- a/scheme/stu_scheme.py
+++ b/scheme/stu_scheme.py
@@ -1,5 +1,5 @@
 from pydantic import BaseModel, Field, model_validator, field_validator, ConfigDict
-from datetime import date, datetime
+from datetime import date
 from typing import Optional
 
 #id用cls_id来拼接生成，不用请求体过滤
diff --git a/scheme/stu_score_scheme.py b/scheme/stu_score_scheme.py
index 915346d..c955bb6 100644
--- a/scheme/stu_score_scheme.py
+++ b/scheme/stu_score_scheme.py
@@ -2,10 +2,6 @@
 import decimal
 
 from pydantic import BaseModel, Field
-# from datetime import datetime
-# from typing import Optional
-
-
 
 # ---------- 请求模型 ----------
 
diff --git a/scheme/teacher_scheme.py b/scheme/teacher_scheme.py
index fb26f38..e85cb80 100644
--- a/scheme/teacher_scheme.py
+++ b/scheme/teacher_scheme.py
@@ -1,10 +1,6 @@
 #老师表请求体模型
-from http.client import HTTPException
 from typing import Optional
-
-from fastapi.openapi.utils import status_code_ranges
 from pydantic import Field, BaseModel, field_validator
-from database import Base  #  Base 在 database.py 中
 
 #添加教师信息请求体
 class TeacherAdd(BaseModel):