save project

a.py

+lb=[A:11,B:22,C:33,D:44]
+K=input("请输入学生姓名:")
+V=input("请输入学生成绩:")
+if K in lb:
+    if int(V)>lb[K]
+        lb[K]=int(V)
+        print("成绩+K+更新为+V+")
+    else:
+     print("成绩未更新")
+else:
+    score[K]=int(V)
\ No newline at end of file

b.py

+lb={'A':11,'B':22,'C':33,'D':44}
+K=input("请输入学生姓名:")
+V=input("请输入学生成绩:")
+if K in lb:
+    if int(V)>lb[K]:
+        lb[K]=int(V)
+        print("成绩+K+更新为+V+")
+    else:
+     print("成绩未更新")
+else:
+    lb[K]=int(V)
+    print(lb)
+print(lb)