尝试合并，所有代码需要调整from后文件路径。

class_management/api/class_management_api.py

@@ -1,9 +1,9 @@
 from datetime import date
 
 from fastapi import APIRouter,Depends,HTTPException,Query
-from dao.class_management_dao import add_class_dao, update_class_dao, get_class_dao, delete_class_dao
-from database import get_db
-from schema.class_management_request import ClassCreate, ClassResponse, ClassUpdate
+from class_management.dao.class_management_dao import add_class_dao, update_class_dao, get_class_dao, delete_class_dao
+from class_management.database import get_db
+from class_management.schema.class_management_request import ClassCreate, ClassResponse, ClassUpdate
 
 class_api = APIRouter(tags=['班级管理模块'])
 

class_management/dao/class_management_dao.py

@@ -1,4 +1,4 @@
-from model.class_management_model import ClassInfo
+from class_management.model.class_management_model import ClassInfo
 from sqlalchemy.orm import Session
 
 

class_management/database.py

@@ -1,7 +1,17 @@
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker,declarative_base
 
-class_management_rul = "mysql+pymysql://root:123456@localhost:3306/student_manage_system?charset=utf8mb4"
+# 导入.env参数
+import os
+from dotenv import load_dotenv
+load_dotenv( )
+DB_USER = os.getenv("DB_USER", "root")
+DB_PASSWORD = os.getenv("DB_PASSWORD", "")
+DB_HOST = os.getenv("DB_HOST", "localhost")
+DB_PORT = os.getenv("DB_PORT", "3306")
+DB_NAME = os.getenv("DB_NAME", "student_manage_system")
+
+class_management_rul = f"mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}?charset=utf8mb4"
 
 engine = create_engine(class_management_rul)
 SessionLocal = sessionmaker(bind=engine,autocommit=False, autoflush=False)

class_management/main.py

@@ -1,8 +1,11 @@
 from fastapi import FastAPI,APIRouter
-from api.class_management_api import class_api
-from model.class_management_model import ClassInfo
-from database import Base,engine
-import model
+from class_management.api.class_management_api import class_api
+from class_management.model.class_management_model import ClassInfo
+from class_management.database import Base,engine
+# import model
+
+Classes_API = APIRouter()
+
 app = FastAPI()
 
 app.include_router(class_api)

class_management/model/class_management_model.py

@@ -1,10 +1,10 @@
 from sqlalchemy import Column, Integer, String, Date, ForeignKey
 from sqlalchemy.dialects.mysql import DATETIME
 from datetime import datetime
-from database import Base
+from class_management.database import Base
 
 class ClassInfo(Base):
-    __tablename__ = 'class'
+    __tablename__ = 'classes'
 
     id = Column(Integer
                 ,primary_key=True
@@ -20,16 +20,16 @@ class ClassInfo(Base):
                         ,comment='班级名称'
                         )
     head_teacher_id = Column(Integer
-                            ,ForeignKey('teacher.id')
+                            # ,ForeignKey('teacher.id')
                             ,comment='班主任编号'
                             )
 
     coach_teacher_id = Column(Integer
-                              ,ForeignKey('teacher.id')
+                              # ,ForeignKey('teacher.id')
                               ,comment='授课老师编号'
                               )
     tutor_teacher_id = Column(Integer
-                              ,ForeignKey('teacher.id')
+                              # ,ForeignKey('teacher.id')
                               ,comment='助教老师编号'
                               )
     # class_teacher = Column(String(50)