save project

diy2.py

@@ -6,8 +6,7 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    elif expression:
-        pass name!=username:
+    elif name!=username:
         print("用户名错误!请重新输入")
     else:
         print("密码错误!请重新输入")