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}    
+student1 = {'语文': 100, '数学': 100, '英语': 100}
+student2 = {'语文': 0, '数学': 0, '英语': 0}
+student3 = {'语文': 52, '数学': 32, '英语': 23}
+score = {'项圣豪': student1, '帅帅': student2, '蒋应铭': student3}