save project

diy2.py

@@ -6,6 +6,7 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         break
         break
     if name!=username:
     if name!=username:
+        
         print("用户名不存在，请重新输入!")
         print("用户名不存在，请重新输入!")
     if password!=userpassword:
     if password!=userpassword:
         print("密码不存在，请重新输入!")
         print("密码不存在，请重新输入!")