统计分析模块更新，待测试，试运行通过，外键已绑定完毕。

stu_jiuye/CURD_api.py

@@ -1,4 +1,4 @@
-import datetime
+from datetime import date
 
 from fastapi import APIRouter,Depends,HTTPException,Query
 from stu_jiuye.dao import *
@@ -15,10 +15,10 @@ def get_stuinfo(                                    #查询学生就业信息
                 ,min_salary:int|None=Query(None,description='最小薪资范围')
                 ,max_salary:int|None=Query(None,description='最大薪资范围')
                 ,somewhere:str|None=Query(None,description='公司地区')
-                ,employment_open_start: datetime.date | None = Query(None,description='就业开放起始时间')
-                ,employment_open_end: datetime.date | None = Query(None,description='就业开放结束时间')
-                ,offer_recived_start: datetime.date | None = Query(None,description='offer下发起始时间')
-                ,offer_recived_end: datetime.date | None = Query(None,description='offer下发结束时间')
+                ,employment_open_start: date | None = Query(None,description='就业开放起始时间')
+                ,employment_open_end: date | None = Query(None,description='就业开放结束时间')
+                ,offer_recived_start: date | None = Query(None,description='offer下发起始时间')
+                ,offer_recived_end: date | None = Query(None,description='offer下发结束时间')
                 ,db=Depends(get_db)
                 ):                                  #查询条件
     r=get_emp_dao(                                  #调用函数