匹配双字节字符[^\x00-\xff]dsn to linkstrmysql://([^:@]+):([^:@]+)@([0-9\.]+):(\d+)mysql -h $3 -u$1 -p$2 -P$4
[^\x00-\xff]
mysql://([^:@]+):([^:@]+)@([0-9\.]+):(\d+)
mysql -h $3 -u$1 -p$2 -P$4