MySQL用户密码中的特殊字符叹号（！）的妙用

mysql> grant all privileges on wubx. to ‘wubx'@'172.16.100.185′ identified by ‘fd52!wubx＆,';
Query OK, 0 rows affected (0.00 sec)
mysql>quit;
#mysql -h 172.16.100.185 -u wubx -pfd52!wubx＆,
-bash: !wubx@,: event not found

$link = mysql_connect('172.16.100.185′,'wubx','fd52!wubx＆,');
if (!link){
die(‘Could not connect:'.mysql_error());
}
echo ‘Connected suessfully';mysql_close($link);
?>
#php testdb.php
Connected suessfully