save project

diy2.py

@@ -8,6 +8,8 @@ while True:
         break
     if  name != username 
         print("用户名错误!请重新输入")
+    
     if  password != userpassword
         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
+    elif expression:
+        print("欢迎来到贝尔编程!")
\ No newline at end of file