save project

diy1.py

@@ -9,5 +9,9 @@ password = input("请输入密码:")
 while Ture():
     if name == username and password == userpassword:
         print("登录成功")
-            break
-    print("用户名")
+        break
+    if name != username:
+        print("用户名不存在，请重新输入")
+    if  password == userpassword:
+        print("密码输入有误，请重新输入")
+print("欢迎来到贝尔编程!")