save project

diy2.py

@@ -4,8 +4,12 @@ while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
-        print("登录成功!")
+        print("登录成功!")n
         break
         break
     else:
     else:
+        if name!=username:
+            print("用户名错误")
+        else password!=userpasswor:
+            print("密码错误")
         print("用户名和密码错误!请重新输入")
         print("用户名和密码错误!请重新输入")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")