diff --git a/api/__init__.py b/api/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/api/order_api.py b/api/order_api.py
new file mode 100644
index 0000000..c284cce
--- /dev/null
+++ b/api/order_api.py
@@ -0,0 +1,44 @@
+from fastapi import APIRouter,Depends,HTTPException
+from day22.schema.order_request import OrderRequest,OrderResponse
+from day22.database import get_db
+from day22.model.order_model import Order
+from day22.dao.order_dao import delete_orders_dao,add_student_dao,update_orders_dao,get_orders_dao
+
+order_api = APIRouter()
+
+
+@order_api.post('',response_model=OrderResponse)
+def add_orders(order:OrderRequest,db=Depends(get_db)):
+    d = order.model_dump()
+    r = add_student_dao( o=d,db=db )
+    if not r:
+        raise HTTPException(status_code=500,detail='服务器繁忙或用户不存在！')
+    return OrderResponse(totals=1,data=d)
+
+@order_api.put('/{id}')
+def get_orders(order:OrderRequest,id:int,db=Depends(get_db)):
+    d = order.model_dump(exclude_unset=True)
+    r = update_orders_dao( id=id,update_data=d,db=db )
+    if not r:
+        raise HTTPException(status_code=500, detail='没有更新！')
+    return {'code':200,'totals':r,'detail':'更新成功'}
+
+@order_api.get('')
+def get_orders(id:int|None = None ,order_title:str|None = None,db=Depends(get_db),page:int=1,page_size:int=10):
+    r = get_orders_dao(id,order_title,db,page,page_size )
+    if r:
+        return r
+    raise HTTPException(status_code=404,detail='订单不存在！')
+
+@order_api.delete('/{id}')
+def get_orders(id:int,db=Depends(get_db)):
+    rows = delete_orders_dao(id,db)
+    if not rows:
+        raise HTTPException(status_code=500,detail='没有删除！')
+    return {'code':200,'totals':rows,'detail':'删除成功'}
+
+# 要求：
+'''
+①把剩下的delete、get查询接口完成dao层的分层
+②新增一个user_info的表，有外键联系，oder订单表外键依赖user_info，改造一下订单post的接口，新增订单前，判断下用户的id是否存在user_info表里
+'''
diff --git a/dao/__init__.py b/dao/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/dao/order_dao.py b/dao/order_dao.py
new file mode 100644
index 0000000..1bece5c
--- /dev/null
+++ b/dao/order_dao.py
@@ -0,0 +1,52 @@
+from day22.model.order_model import Order,User
+
+
+def add_student_dao(o,db):
+    try:
+        r = db.query(User).filter(User.id == o['userid']).all()
+        if r:
+            o1 = Order( **o)  # 将字典解析成键值对关键字参数输入 title = xxx, userid = XXX
+            db.add(o1)
+        else:
+            raise ValueError
+    except:
+        db.rollback()
+        return False
+    else:
+        db.commit()
+        return True
+
+
+
+def update_orders_dao(id,update_data,db):
+    try: # 数据更新是有返回值的，返回的是影响的行数
+        rows = db.query( Order ).filter( Order.id == id ).update( update_data )
+    except:
+        db.rollback()
+        return False
+    else:
+        db.commit()
+        return rows
+
+def get_orders_dao(id,order_title,db,page,page_size):
+    q = db.query(Order)
+    if id:
+        q = q.filter( Order.id == id )
+    if order_title:
+        q = q.filter( Order.title == order_title )
+    r = q.offset( (page-1)*page_size ).limit( page_size ).all()
+    if r:
+        return [{"order_id": i.id, 'order_title': i.title, "user_id": i.userid, "create_date": i.create_date,
+                 "update_date": i.update_date} for i in r]
+
+
+def delete_orders_dao(id,db):
+    try:  # 删除有返回值，删除的行数
+        rows = db.query(Order).filter(Order.id == id).delete()
+    except:
+        db.rollback()
+        rows = 0
+    else:
+        db.commit()
+    finally:
+        return rows
\ No newline at end of file
diff --git a/database.py b/database.py
new file mode 100644
index 0000000..a1669b6
--- /dev/null
+++ b/database.py
@@ -0,0 +1,18 @@
+from sqlalchemy import *
+from sqlalchemy.orm import declarative_base,sessionmaker
+
+db_url = "mysql+pymysql://root:123456@127.0.0.1:3306/ai0824?charset=utf8mb4"
+engine = create_engine(db_url)
+
+Base = declarative_base()
+Session = sessionmaker(bind=engine
+                       ,autoflush=False
+                       ,autocommit = False
+                       )
+
+def get_db():
+    db = Session()
+    try:
+        yield db
+    finally:
+        db.close()
\ No newline at end of file
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..a4c4d12
--- /dev/null
+++ b/main.py
@@ -0,0 +1,11 @@
+from fastapi import FastAPI
+from day22.api.order_api import order_api
+
+app = FastAPI()
+
+app.include_router(order_api,tags=['订单接口'],prefix='/orders')
+
+
+if __name__ == '__main__':
+    import uvicorn
+    uvicorn.run("main:app",host='0.0.0.0',port=12345)
diff --git a/midlleware.py b/midlleware.py
new file mode 100644
index 0000000..4afdb04
--- /dev/null
+++ b/midlleware.py
@@ -0,0 +1,19 @@
+from  fastapi import Response,Request
+from time import time
+
+async def fun_ip(r,n):
+    print('获取客户端的来访ip：',r.client.host)
+    if r.client.host not in ['192.168.5.18','192.168.5.6']:
+        respons = await n(r)
+        return respons
+    return Response(status_code=403,content='Not have Permission!')
+
+async def fun_time(r:Request,n):
+    start_time = time()  # 记录开始的时间
+    respons = await n(r)  # 接口执行
+    end_time = time()  # 记录结束的时间
+    sss = end_time - start_time
+    print( f'接口响应耗时：{sss}s' )
+    respons.headers["Time"] = str(sss)  # 添加到响应头里，必须是字符串
+    return respons
+
diff --git a/model/__init__.py b/model/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/model/order_model.py b/model/order_model.py
new file mode 100644
index 0000000..0493886
--- /dev/null
+++ b/model/order_model.py
@@ -0,0 +1,43 @@
+from day22.database import DATETIME,Base,Column,Integer,String
+from datetime import datetime
+
+class Order(Base):   # python里的表名字
+    __tablename__ = 'order_info_detail'  # 实际数据库的表名字
+    id = Column( Integer  # 声明字段的数据类型
+                 , primary_key=True  # 声明是主键
+                 , autoincrement=True # 声明是自增主键
+                 , comment='订单编号，自增主键'  # 注释
+                 )
+    title = Column( String(50)  # 对应数据库的varchar类型
+                    ,nullable=False  # 不允许为null
+                    )
+    userid = Column( Integer
+                     # ,ForeignKey('user_info_detail.id')
+                     ,nullable=False )  # 外键约束
+    create_date = Column(DATETIME
+                         , default=datetime.now  # 默认值是当前时间
+                         )
+    update_date = Column(DATETIME
+                         , default=datetime.now  # 首次创建的时间跟更新时间一致
+                         , onupdate=datetime.now
+                         )
+
+
+class User(Base):   # python里的表名字
+    __tablename__ = 'user_info_detail'  # 实际数据库的表名字
+    id = Column( Integer  # 声明字段的数据类型
+                 , primary_key=True  # 声明是主键
+                 , autoincrement=True # 声明是自增主键
+                 , comment='用户编号，自增主键'  # 注释
+                 )
+    usernmae = Column( String(50)  # 对应数据库的varchar类型
+                    ,nullable=False  # 不允许为null
+                    ,comment='用户名'
+                    )
+    create_date = Column(DATETIME
+                         , default=datetime.now  # 默认值是当前时间
+                         )
+    update_date = Column(DATETIME
+                         , default=datetime.now  # 首次创建的时间跟更新时间一致
+                         , onupdate=datetime.now
+                         )
\ No newline at end of file
diff --git a/schema/__init__.py b/schema/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/schema/order_request.py b/schema/order_request.py
new file mode 100644
index 0000000..996c2ae
--- /dev/null
+++ b/schema/order_request.py
@@ -0,0 +1,12 @@
+from pydantic import BaseModel
+
+# 定义创建订单的请求体模型
+class OrderRequest(BaseModel):
+    title:str|None = None
+    userid:int|None =None
+
+class OrderResponse(BaseModel):
+    code:int = 200
+    detail:str = 'OK'
+    totals:int = 0
+    data:str|dict|tuple|list
\ No newline at end of file
diff --git a/test.py b/test.py
deleted file mode 100644
index a824b63..0000000
--- a/test.py
+++ /dev/null
@@ -1,7 +0,0 @@
-'''DSFDSFSDFAFASDF'''
-11111
-2222
-333
-44
-55
-66
\ No newline at end of file
diff --git a/test222.py b/test222.py
deleted file mode 100644
index 7b4353a..0000000
--- a/test222.py
+++ /dev/null
@@ -1 +0,0 @@
-22222
\ No newline at end of file
diff --git a/test3.py b/test3.py
deleted file mode 100644
index 4f37670..0000000
--- a/test3.py
+++ /dev/null
@@ -1 +0,0 @@
-333
\ No newline at end of file