save project

m.py

-username = "sb"
+username = "db"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 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!")
+    if name!=name1:
     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!")
+    if password!=password1:
\ No newline at end of file
+
+print("欢迎来到贝尔编程!")