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QT信号槽与Delphi事件的对比
最近学QT,对信号槽机制感到有点新鲜:QObject::connect(slider, SIGNAL(valueChanged(int)), lcd, SLOT(display(int)));自己总结其原理,就是一句话:把两个对象的函数相关(往往是设置同一个值),而不用考虑两个对象之间的关系。缺点是...
分类:其他好文   时间:2014-08-11 20:46:52    阅读次数:1061
php socket connect permission denied
Linux在php socket连接时报错:permission denied解决办法:# setsebool httpd_can_network_connect=1参考来源:http://www.cppblog.com/colorful/archive/2013/07/29/202222.html...
分类:Web程序   时间:2014-08-11 20:45:02    阅读次数:192
Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
[root@test]# /usr/local/mysql/bin/mysql -urootERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)[root@test]#...
分类:数据库   时间:2014-08-11 20:29:02    阅读次数:248
POJ2288Islands and Bridges(状态压缩DP,求最大路和走条数)
Islands and Bridges Time Limit: 4000MS   Memory Limit: 65536K Total Submissions: 8845   Accepted: 2296 Description Given a map of islands and bridges that connect these i...
分类:其他好文   时间:2014-08-11 17:59:32    阅读次数:362
ORACLE基本SQL语句-用户及建表篇
一、用户相关SQL语句/*新建用户*/create user SA identified by 2013;说明:SA用户名,2013密码/*授权connect,resource给用户sa*/grant connect,resource to sa;说明:CONNECT角色: --是授予最终用户的典型...
分类:数据库   时间:2014-08-11 17:07:12    阅读次数:235
创建数据库连接
创建database link基本语法CREATE [ SHARED ][ PUBLIC ] database link link_name [ CONNECT TO user IDENTIFIED BY password ] [ AUTHENTICATED BY user ID...
分类:数据库   时间:2014-08-11 14:47:02    阅读次数:236
hdu oj 3371 Connect the Cities (最小生成树)
Connect the Cities Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 9985    Accepted Submission(s): 2843 Problem Description In 2100...
分类:其他好文   时间:2014-08-10 18:42:10    阅读次数:236
oracle递归查询记录
1.?start with ?开始的id ?connect by prior 开始的id=父id 2. level 级别 3.实例 select * from ( select a.*,level tt from biz_district a start with district_id=8 connect by prior district_id=parent...
分类:数据库   时间:2014-08-10 15:55:50    阅读次数:239
微信公众平台网页授权获取用户基本信息(VS.NET版)
一、前期准备工作1.接口权限表点击修改【OAuth2.0网页授权】。(读者可网上搜索什么是OAuth2.0)注意:此处应填写与回调页面相同的域名。2.编写正确的URLhttps://open.weixin.qq.com/connect/oauth2/authorize?appid=公众号APPID&...
分类:微信   时间:2014-08-10 15:24:50    阅读次数:662
JSch
JSch is a pure Java implementation ofSSH2.JSch allows you to connect to an sshd server and use port forwarding, X11 forwarding, file transfer, etc., a...
分类:Web程序   时间:2014-08-09 15:39:38    阅读次数:320
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