auto save

diy3.py

@@ -12,3 +12,10 @@ else:
     print("没有这个学生")
     print("没有这个学生")
 for k,v in d.items():
 for k,v in d.items():
     print(k,v)
     print(k,v)
+
+for k in d.keys():
+
+for v in d.values():
+
+for k,v in d.items():
+