系统迁移或者更换的时候用到的，特别注意里面的引号，很容易弄错了。
旧会员导出
select 'uid','username','password','email','salt' union select 'uid','username','password','email','salt' from 'uc_members' into outfile '/score.sql'
导入
load data infile '/score.sql'into table `chbwzstb_users`character set utf8fields terminated by 't'lines terminated by 'n'ignore 1 lines(`uid`, `username`, `password`, `email`, `salt`);