auto save

test.py

+dict = {'甲':50,'乙':80,'丙':75}
+# 输入名字和成绩
+name = input("名字:")
+s = input("成绩：")
+if name in dict:
+    if int(s)>dict[name]:
+        dict[name] = int(s)
+        print("刷新成绩")
+    else:
+        print("很遗憾，未刷新")
+else:
+    dict[name] = int(s)
+    print("第一次成绩录入")
+    print(dict)