启动MySQL后，执行命令mysql -u root-p并输入密码时，系统返回错误提示：ERROR 1045 (28000)，表示访问被拒绝，用户root@localhost无法登录，尽管已提供密码。该问题通常由密码错误、权限配置不当或用户账户状态异常引起，需检查认证信息及数据库服务设置，确认用户 ...

Have you recently upgraded MySQL from a 4.0x version ? Then you should try setting your password again using the function OLD_PASSWORD ().<BR><BR>This also might be a result of an incorrect hosts file ...