save project

diy2.py

@@ -9,5 +9,8 @@ while True:
     if name==username and password==userpassword:
         print("登陆成功")
         break
-    print("错误")
-print("欢迎你")
+    if name!=username:
+        print("账号错误")
+    elif password!=userpassword:
+        print("密码错误")
+print("欢迎你")
\ No newline at end of file