diff --git a/PythonProject/api/employment_api.py b/PythonProject/api/employment_api.py
new file mode 100644
index 0000000..e69de29
diff --git a/PythonProject/api/student_api.py b/PythonProject/api/student_api.py
index b71aafc..db947bf 100644
--- a/PythonProject/api/student_api.py
+++ b/PythonProject/api/student_api.py
@@ -1,11 +1,44 @@
-from fastapi import APIRouter
-from dao.student_dao import select_age
+from fastapi import APIRouter,Depends,HTTPException
 from schema.student_schema import StudentResponse
+from dao.student_dao import delete_student_dao,add_student_dao,update_student_dao,get_student_dao,select_age
+from schema.student_schema import StudentRequest,StudentResponse
+from model.student_model import Student_Model
+from util.database import get_db
 
-studentapi = APIRouter()
 
-@studentapi.get("/age",response_model=StudentResponse,tags=['统计分析模块'],description='根据年龄查询学生信息')
+StudentAPI = APIRouter()
+
+@StudentAPI.get("/age",response_model=StudentResponse,tags=['统计分析模块'],description='根据年龄查询学生信息')
 def get_students(min_age:int|None=None,max_age:int|None=None):
     l = select_age(min_age,max_age)
     return [i for i in l]
 
+@StudentAPI.get('',description='查询学生信息')
+def get_students(stu_id:int|None=None
+                    ,stu_name:str|None=None
+                    ,class_id:int|None=None
+                    ,db=Depends(get_db)
+                    ,page:int=1
+                    ,page_size:int=10):
+    r=get_student_dao(stu_id,stu_name,class_id,db,page,page_size)
+    if r:
+        return r
+    raise HTTPException(status_code=404,detail='学生不存在')
+
+@StudentAPI.put('/{stu_id}')
+def update_orders(s:StudentRequest,stu_id:int,db=Depends(get_db)):
+    d = s.model_dump(exclude_unset=True)
+    r = update_student_dao( stu_id=stu_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'}
+
+@StudentAPI.delete('/{stu_id}')
+def del_student(stu_id:int,db=Depends(get_db)):
+    rows=delete_student_dao( stu_id=stu_id,db=db )
+    if not rows:
+        raise HTTPException(status_code=500,detail='没有删除')
+    return {'code':200,'totals':rows,'detail':'删除成功'}
+
+
+
diff --git a/PythonProject/dao/employment_dao.py b/PythonProject/dao/employment_dao.py
new file mode 100644
index 0000000..e69de29
diff --git a/PythonProject/dao/student_dao.py b/PythonProject/dao/student_dao.py
index 5188ffb..ab173e9 100644
--- a/PythonProject/dao/student_dao.py
+++ b/PythonProject/dao/student_dao.py
@@ -9,49 +9,61 @@ def select_age(min_age,max_age,session=Depends(get_db)):
             raise HTTPException(status_code=400, detail="请至少传入一个参数")
         session = session.query(Student_Model)
         if min_age is not None:
-            session = session.filter(Student_Model.age >= min_age)
+            session = session.filter(Student_Model.age >= min_age,Student_Model.delete_status == 0)
         if max_age is not None:
-            session = session.filter(Student_Model.age <= max_age)
+            session = session.filter(Student_Model.age <= max_age,Student_Model.delete_status == 0)
         return session.all()
     except HTTPException:
         raise
     except Exception:
         raise HTTPException(status_code=500,detail="查询异常")
 
-def delete_student_dao(stu_id,db):
+def add_student_dao(o,db=Depends(get_db)):
     try:
-        rows = db.query(Student_Model).filter(Student_Model.stu_id == stu_id).delete()
+        o1 = Student_Model( **o)
+        db.add(o1)
+    except:
+        db.rollback()
+        return False
+    else:
+        db.commit()
+        return True
+
+def delete_student_dao(stu_id,db=Depends(get_db)):
+    try:
+        rows = db.query(Student_Model).filter(Student_Model.stu_id == stu_id,Student_Model.delete_status == 0)\
+            .update({'delete_status':1})
+        db.commit()
     except:
         db.rollback()
         rows = 0
-    else:
-        db.commit()
     finally:
         return rows
 
-def update_student_dao(stu_id,update_data,db):
+def update_student_dao(stu_id,update_data,db=Depends(get_db)):
     try:
-        rows = db.query( Student_Model ).filter( Student_Model.stu_id == stu_id ).update( update_data )
+        rows = db.query( Student_Model ).filter( Student_Model.stu_id == stu_id,Student_Model.delete_status == 0).update( update_data )
     except:
         db.rollback()
         return False
     else:
         db.commit()
         return rows
+
 def get_student_dao(stu_id:Optional[int]
                    ,stu_name:Optional[str]
                    ,class_id:Optional[int]
-                   ,db: Session
                    ,page: int
                    ,page_size: int
+                   ,db=Depends(get_db)
                    ) -> tuple[List[Dict[str, Any]], int]:
     q = db.query(Student_Model)
     if stu_id:
-        q = q.filter(Student_Model.stu_id == stu_id)
+        q = q.filter(Student_Model.stu_id == stu_id,Student_Model.delete_status == 0)
     if stu_name:
-        q = q.filter(Student_Model.stu_name.like(f"%{stu_name}%"))
+        q = q.filter(Student_Model.stu_name.like(f"%{stu_name}%"),Student_Model.delete_status == 0)
     if class_id:
-        q= q.filter(Student_Model.class_id == class_id)
+        q= q.filter(Student_Model.class_id == class_id,Student_Model.delete_status == 0)
     total = q.count()
     r = q.offset((page - 1) * page_size).limit(page_size).all()
     data = []
@@ -63,3 +75,5 @@ def get_student_dao(stu_id:Optional[int]
                     ,'update_date': i.update_date
                     })
     return data, total
+
+
diff --git a/PythonProject/dao/teacher_dao.py b/PythonProject/dao/teacher_dao.py
index c02a3f7..b624a12 100644
--- a/PythonProject/dao/teacher_dao.py
+++ b/PythonProject/dao/teacher_dao.py
@@ -16,7 +16,7 @@ def add_teacher(req:Teacher_RequestModel,session=Depends(get_db)):
 
 def select_teacher(session=Depends(get_db)):
     try:
-        teacher_list=session.query(Teacher_Model).all()
+        teacher_list=session.query(Teacher_Model).filter(Teacher_Model.delete_status==0).all()
         return teacher_list
     except:
         raise HTTPException(status_code=500,detail="查询异常！")
@@ -24,15 +24,16 @@ def select_teacher(session=Depends(get_db)):
 def update_teacher(id:int,req:Teacher_RequestModel,session=Depends(get_db)):
     try:
         session.query(Teacher_Model).filter(Teacher_Model.teac_id==id)\
-        .update(req.model_dump(exclude_unset=True))
+        .filter(Teacher_Model.delete_status==0).update(req.model_dump(exclude_unset=True))
         session.commit()
     except:
         raise HTTPException(status_code=500,detail="更新异常！")
 
 def delete_teacher(id:int,session=Depends(get_db)):
     try:
-        session.query(Teacher_Model).filter(Teacher_Model.teac_id==id).delete()
+        session.query(Teacher_Model).filter(Teacher_Model.teac_id==id,Teacher_Model.delete_status==0)\
+            .update({'delete_status':1})
         session.commit()
     except:
         raise HTTPException(status_code=500,detail="删除异常")
-    return {'code':200,'details':'删除成功'}
\ No newline at end of file
+    return {'code':200,'details':'删除成功'}
diff --git a/PythonProject/model/cla_model.py b/PythonProject/model/cla_model.py
index 3371f7e..286bd92 100644
--- a/PythonProject/model/cla_model.py
+++ b/PythonProject/model/cla_model.py
@@ -1,6 +1,6 @@
-
-from sqlalchemy import DateTime,Date,Column,Integer,ForeignKey,Boolean,String
+from sqlalchemy import DATETIME,Date,Column,Integer,ForeignKey,String
 from util.database import Base,engine
+from datetime import datetime
 
 class ClassManagement(Base):
     __tablename__ = "wl_class"
@@ -15,14 +15,13 @@ class ClassManagement(Base):
 
     class_teacher_id = Column(Integer,ForeignKey('wl_teacher.id'),comment='授课教师')
 
-    Entry_date= Column(DateTime,comment='录入时间')
+    Entry_date= Column(DATETIME,default=datetime.now,comment='录入时间')
 
-    update_date = Column(DateTime,comment='更新时间')
+    update_date = Column(DATETIME,default=datetime.now,onupdate=datetime.now,comment='更新时间')
 
-    delete_status = Column(
-        Integer,default=0,comment='删除状态：0未删除，1已删除')
+    delete_status = Column(Integer,default=0,comment='删除状态：0未删除，1已删除')
 
-    delete_time = Column(DateTime, nullable=True, comment='删除时间')
+    delete_time = Column(DATETIME,default=datetime.now,onupdate=datetime.now,comment='删除时间')
 
 Base.metadata.create_all(engine)
 
diff --git a/PythonProject/model/employment_model.py b/PythonProject/model/employment_model.py
index 5d1abe3..e5930f8 100644
--- a/PythonProject/model/employment_model.py
+++ b/PythonProject/model/employment_model.py
@@ -56,4 +56,6 @@ class Employment_info(Base):
     delete_status = Column(
         Integer,default=0,comment='删除状态：0未删除，1已删除')
 
+    delete_time = Column(DATETIME,default=datetime.now,onupdate=datetime.now,comment='删除时间')
+
 Base.metadata.create_all(engine)
\ No newline at end of file
diff --git a/PythonProject/model/grade_model.py b/PythonProject/model/grade_model.py
index 50856a3..a1235e1 100644
--- a/PythonProject/model/grade_model.py
+++ b/PythonProject/model/grade_model.py
@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, Numeric, DateTime,ForeignKey
+from sqlalchemy import Column, Integer, Numeric, DATETIME,ForeignKey
 from datetime import datetime
 from util.database import Base,engine
 
@@ -24,12 +24,12 @@ class WlScore(Base):
     score=Column(Numeric(5, 2)
                  , comment="成绩")
 
-    create_time = Column(DateTime
+    create_time = Column(DATETIME
                          , nullable=False
                          , default=datetime.now
                          , comment="作成时间")
 
-    update_time = Column(DateTime
+    update_time = Column(DATETIME
                          , nullable=False
                          , default=datetime.now
                          , onupdate=datetime.now
@@ -38,5 +38,6 @@ class WlScore(Base):
     delete_status = Column(
         Integer,default=0,comment='删除状态：0未删除，1已删除')
 
-Base.metadata.create_all(engine)
+    delete_time = Column(DATETIME,default=datetime.now,onupdate=datetime.now,comment='删除时间')
 
+Base.metadata.create_all(engine)
diff --git a/PythonProject/model/student_model.py b/PythonProject/model/student_model.py
index d44ebe5..1a11e87 100644
--- a/PythonProject/model/student_model.py
+++ b/PythonProject/model/student_model.py
@@ -47,4 +47,6 @@ class Student_Model(Base):
     delete_status = Column(
         Integer,default=0,comment='删除状态：0未删除，1已删除')
 
+    delete_time = Column(DATETIME,default=datetime.now,onupdate=datetime.now,comment='删除时间')
+
 Base.metadata.create_all(engine)
diff --git a/PythonProject/model/teacher_model.py b/PythonProject/model/teacher_model.py
index d91c4a3..257366d 100644
--- a/PythonProject/model/teacher_model.py
+++ b/PythonProject/model/teacher_model.py
@@ -22,5 +22,7 @@ class Teacher_Model(Base):
     delete_status = Column(
         Integer,default=0,comment='删除状态：0未删除，1已删除')
 
+    delete_time = Column(DATETIME,default=datetime.now,onupdate=datetime.now,comment='删除时间')
+
 Base.metadata.create_all(engine)
 
diff --git a/PythonProject/schema/cla_schema.py b/PythonProject/schema/cla_schema.py
new file mode 100644
index 0000000..5d64fcb
--- /dev/null
+++ b/PythonProject/schema/cla_schema.py
@@ -0,0 +1,34 @@
+from datetime import date
+from pydantic import BaseModel
+from sqlalchemy import DATETIME
+
+class claRequest(BaseModel):
+
+    class_name : str|None = None
+
+    start_class_date :date
+
+    head_teacher_id : int|None = None
+
+    class_teacher_id : int|None = None
+
+    Entry_date  : DATETIME
+
+    update_date : DATETIME
+
+    delete_status : int|None = None
+
+    delete_time : DATETIME
+
+class claResponse(BaseModel):
+
+    code:int = 200
+
+    detail:str = 'ok'
+
+    class_name = str
+
+    head_teacher_id = int
+
+    class_teacher_id = int
+
diff --git a/PythonProject/schema/employment_schema.py b/PythonProject/schema/employment_schema.py
new file mode 100644
index 0000000..e69de29
diff --git a/PythonProject/schema/teacher_schema.py b/PythonProject/schema/teacher_schema.py
index 79a6167..696276b 100644
--- a/PythonProject/schema/teacher_schema.py
+++ b/PythonProject/schema/teacher_schema.py
@@ -10,8 +10,6 @@ class Teacher_RequestModel(BaseModel):
     teac_position:str
     delete_status:int
 
-
-
 class Teacher_ResponseModel(BaseModel):
     code:int=200
     detail:str='OK!'
diff --git a/需求文档.md b/需求文档.md
index 84d2090..741fc92 100644
--- a/需求文档.md
+++ b/需求文档.md
@@ -23,10 +23,10 @@ dao层（每一个功能就是一个函数，判断能否功能复用）
 通用模块
 
 学生模块
-实现增加学生的功能 **xxx 做成中**
-实现查询学生的功能：需要能进行多条件查询 **xxx 做成中**
-实现更新学生信息的功能 **xxx 做成中**
-实现删除学生信息的功能 （更新删除状态这个列，即软删除）**xxx 做成中**
+实现增加学生的功能 **msj 做成中**
+实现查询学生的功能：需要能进行多条件查询 **msj 做成中**
+实现更新学生信息的功能 **msj 做成中**
+实现删除学生信息的功能 （更新删除状态这个列，即软删除）**msj 做成中**
 
 成绩模块
 实现增加学生成绩的功能 **hzl 做成中**