开始菜单—运行—输入cmd打开命令提示符
输入ipconfig /displaydns，查看一下本机已经缓存了哪些DNS信息
接着输入ipconfig /flushdns，这时本机的DNS缓存信息已经清空了
接着输入第一次我们输入的命令ipconfig /displaydns来查看一下是不是清空了
SQL语句执行错误：SELECT * FROM emlog_sort where pid= ORDER BY sid ASC, taxis asc
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ORDER BY sid ASC, taxis asc' at line 1