save project

diy2.py

@@ -6,11 +6,10 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-#用户名不正确
-    if name != username:
+    elif name != username:
         print("用户名不正确")
-#密码不正确
-    if password != userpassword:
+    else:
         print("密码不正确")
 print("欢迎来到贝尔编程!")
     continue
+