diff --git a/api/class_api.py b/api/class_api.py
index e69de29..d5af66f 100644
--- a/api/class_api.py
+++ b/api/class_api.py
@@ -0,0 +1,25 @@
+from fastapi import APIRouter,Depends,HTTPException
+from schemas.class_schema import *
+from core.database import get_db
+from dao.class_dao import *
+
+classes_router = APIRouter()
+
+@classes_router.post('/',response_model=ClassResponse)
+def post_classes(classes:ClassCreate,db=Depends(get_db)):
+    c = classes.model_dump()
+    r = post_classes_dao( c , db )
+    if r :
+        return ClassResponse( total=1,data=c )
+    else :
+        raise HTTPException(status_code=500,detail='添加失败，服务器繁忙，请稍后添加！')
+
+
+@classes_router.put('/{id}',response_model=ClassResponse)
+def put_classes(id:int,classes:ClassUpdate,db=Depends(get_db)):
+    updates = classes.model_dump( exclude_unset=True )
+    r = update_classes_dao( id , db , updates )
+    if r :
+        return ClassResponse( total=1,data=updates )
+    else :
+        raise HTTPException(status_code=500, detail='更新失败，该班级已不存在或服务器繁忙，请稍后更新！')
\ No newline at end of file
diff --git a/dao/class_dao.py b/dao/class_dao.py
index e69de29..e1f93a0 100644
--- a/dao/class_dao.py
+++ b/dao/class_dao.py
@@ -0,0 +1,29 @@
+from models.class_model import Classes
+
+
+def post_classes_dao( c , db ):
+    try :
+        cc = Classes( **c )
+        db.add( cc )
+    except :
+        db.rollback()
+        return False
+    else :
+        db.commit()
+        return True
+
+def update_classes_dao( class_id , db , updates ):
+    try :
+        db.query( Classes ).filter( Classes.id==class_id , Classes.is_deleted==0 ) .update( updates )
+    except :
+        db.rollback()
+        return False
+    else :
+        db.commit()
+        return True
+
+# def get_classes_dao( class_id , class_name ,  db ):
+#     try :
+#         r = db.query( Classes ).filter( Classes.id==class_id , Classes.is_deleted==0 ) .all()
+#     except :
+#         db.rollback()
\ No newline at end of file
diff --git a/main.py b/main.py
index fe32962..51048c7 100644
--- a/main.py
+++ b/main.py
@@ -6,6 +6,8 @@ app = FastAPI()
 app.middleware("http")(log_middleware)
 
 #-------------朱婷婷--------------
+from api.class_api import classes_router
+app.include_router(classes_router,tags=['班级接口'],prefix="/classes")
 
 #-------------李玉杰--------------
 
diff --git a/models/class_model.py b/models/class_model.py
index efd97c7..8c7935d 100644
--- a/models/class_model.py
+++ b/models/class_model.py
@@ -1,7 +1,6 @@
-from sqlalchemy import *
-from datetime import datetime,time,date
-
-Base = declarative_base()        # 执行函数，返回一个基类
+from sqlalchemy import *           # 导入sqlalchemy模块下所有的类，以便下面创建班级表模型和声明表的字段
+from datetime import datetime      # 导入datetime模块下的datetime类
+from core.database import Base     # 从core软件包下的database模块导入Base
 
 class Classes( Base ):              # 在python里的名字
     __tablename__ = 'classes'       # 在数据库中表的名字
diff --git a/schemas/class_schema.py b/schemas/class_schema.py
index e69de29..05029b6 100644
--- a/schemas/class_schema.py
+++ b/schemas/class_schema.py
@@ -0,0 +1,24 @@
+from pydantic import BaseModel           # 导入pydantic模块下的BaseModel类
+from datetime import datetime,date       # 导入datetime模块下的datetime,date类
+
+
+# ————定义"创建班级"的"请求体"模型————
+class ClassCreate( BaseModel ):
+    class_no: str
+    class_name: str
+
+# ————定义"更新班级"的"请求体"模型————
+class ClassUpdate( BaseModel ):
+    class_no: str|None = None
+    class_name: str|None = None
+    start_date : date|None = None
+    end_date : date|None = None
+    created_at : datetime|None = None
+    update_at : datetime|None = None
+
+# ————定义"班级"的"响应体"模型————
+class ClassResponse( BaseModel ):
+    code:int = 200
+    detail:str = '执行成功'
+    total:int = 0
+    data:str|dict|list|tuple