auto save

diy3.py

+student1 = {'语文': 91, '数学': 88, '英语': 85}
+student2 = {'语文': 97, '数学': 98, '英语': 90}
+student3 = {'语文': 95, '数学': 100, '英语': 93}
+score = {'悟空': student1, '诺依': student2, '小贝': student3}    
+while True:
+    text = input("你干嘛（输入编号）1=查询  2=修改：")
+    if text=="q":
+        print("byebye")
+        
+        break
+    elif text == "1":
+        name = input('请输入名字：')
+        if name in score:
+            x = score[name]
+            for k,v in x.items():
+                print(k,v)
+    elif text == "2":
+        s = input("请输入你要修改的名字")
+        d = input("请输入数学新成绩")
+        if s in score:
+            score[s]['数学'] = d
+        else:
+            print('修改的名字不存在.')
+    print("*"*90)
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