save project

diy2.py

@@ -6,9 +6,12 @@ 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")
     if username != name: 
-        print("用户名和密码错误!请重新输入")
+        print("用户名错误!请重新输入")
+        continue
     if userpassword != password:
-        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
+        print("密码错误!请重新输入")
+    print("欢迎来到贝尔编程!")
+
+        
+  
\ No newline at end of file