save project

diy1.py

@@ -5,8 +5,10 @@ while True:
     b=input("请输入用户密码:")
 
     if a==username and b==userpassword:
-        print("密码正确,登陆成功")
+        print("登陆成功")
         break
-    else:
-        print("密码错误,登陆失败")
+    if a!=username:
+        print("户名错误,请重新输入")
+    if b!=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