小编Ram*_*iva的帖子

我不知道如何在bash中正确使用正则表达式,我试图以这种方式做错误,正则表达式验证有什么问题？

#!/bin/bash

if [ ! $# -eq 1 ]; then
        echo "Error: wrong parameters"
else
        if [ $1 =~ "[a-z]" ]; then
                echo "$1: word"
        elif [ $1 =~ "[0-9]" ]; then
                echo "$1: number"
        else
                echo "$1: invalid parameter"
        fi
fi

我有错误ORACLE:ORA-00904:无效的标识符:

and l.cd_pergunta = e.cd_pergunta

无效标识符是'e',cd_pergunta的前缀...

当我执行此查询时:

select count(*)
  from TEACEITE e
 inner join TEREGETA re on re.cd_etapa = e.cd_etapa
                       and re.id_reg_neg = 1.00000000
 where e.obrigatorio = 1
   and not exists
 (select 1
          from GESESSAO s
         inner join GERESPOS r on r.sessao = s.sessao_resp
                              and r.resposta_log = 1
         inner join GEEPE l on l.cd_quest = s.cd_quest
                           and l.ord_perg = r.ord_pergunta
                           and l.cd_pergunta = e.cd_pergunta
         where s.cd_quest = e.cd_quest
           and s.item = e.cd_etapa
           and s.origem = 'GC'
           and s.os_nf_orc_cont = 1.00000000) …

我不知道线程是如何工作的,但我想我做得对.
我正在编写一个IRC机器人,只是为了帮助我管理一些计算机.

当机器人收到命令-new时,它会运行具有给定参数的另一个机器人.
僵尸程序正确连接到网络,但最后一个接收到运行另一个命令的命令,停止响应管理员命令.

这是机器人类:

public class IRCBot extends Thread {

    private final String NETWORK;
    private final int PORT;
    private String nickname;
    private String defaultChannel;
    private String admin;
    private Socket connection;
    private BufferedReader input;
    private BufferedWriter output;
    private final String VERSION = "1.00";

    public IRCBot(String NETWORK, int PORT, String nickname, String defaultChannel, String admin) {
        this.NETWORK = NETWORK;
        this.PORT = PORT;
        this.nickname = nickname;
        this.defaultChannel = defaultChannel;
        this.admin = admin;
    }

    private void connect() throws Exception …

我需要比较一下var foo = 'whatever'这个:

<ul id="nav_main"><li><a href="index.php?pag=THIS">link</a></li></ul>

然后,放入class="current"匹配的内部<li>.

我试过用css做的,使用:

#mainmenu ul li:hover a
{
  color: #000000;
}

但它不起作用,然后我尝试使用jQuery,:

function change()
{
  $(this).find('a').css('color','#000000');
}

在里面调用onMouseOver <li>,但它也不起作用......

任何的想法？