save project

diy2.py

@@ -6,5 +6,9 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-        print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+    if name!=username:    
+        print("用户名输入错误！")
+    if password!=userpassword:
+        print("密码输入错误!")
+print("欢迎来到贝尔编程!")
+    
\ No newline at end of file