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2 months ago · 23f8e01cf9
parent bc40d9928b
commit 23f8e01cf9
1 changed files with 6 additions and 0 deletions
--- a/面向对象学生系统/Dal/find_students_by_sid.py
+++ b/面向对象学生系统/Dal/find_students_by_sid.py
@ -0,0 +1,6 @@
+def find_student_by_sid(self,sid:str)-> Optional[Student]:
+    students =self.load_students()
+    for student in students:
+        if student.sid==sid:
+            return student
+    return None