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ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注IT技能提升

...ance(REFCLSID rclsid,LPUNKNOWN pUnkOuter=NULL, DWORD dwClsCOntext=CLSCTX_ALL); HRESULT CoCreateInstance(LPCOLESTR szProgID, LPUNKNOSWN pUnkOuter=NULL, DWORD dwClsContxt=CLSCTX_ALL); 后两个参数不管,第一个参数要不传入CLSID,要不传入字符串形式的progID. 例子代码如...
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C++代码执行安装包静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术

... szCmdline = _T("/NCRC /S /D=\""); szCmdline.Append( DEFAULT_INSTALL_PATH ); szCmdline.Append( _T("\"") ); CreateProcess( szSetupPath, szCmdline.GetBuffer(), NULL, FALSE, NULL, NULL, NULL, szWorking, &si, &pi ); WaitForSingleObject( m_hCreatePackage, INFINITE ); // 这种方...
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oracle group 取每组第一条 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...t of operations performed in a query except for the final ORDER BY clause. All joins and all WHERE , GROUP BY , and HAVING clauses are completed before the analytic functions are processed. Therefore, analytic functions can appear only in the select list or ORDER BY clause. 语法结构: analy...
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MySQL和MongoDB设计实例进行对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...查询: db.getCollection("mobiles").find({ "params": { $all: [ {$elemMatch: {"name": "待机时间", "value": {$gt: 100}}}, {$elemMatch: {"name": "外观设计", "value": "直板"}} ] } }); 注:查询中用到的$all,$elemMatch等高...
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从 !important 到关于叹号的 !一切 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...里面真的没叹号吗? 无法控制地跑题 Cut out all those exclamation points. An exclamation point is like laughing at your own jokes. – F. Scott Fitzgerald // 要是我,会更喜欢这样说: Cut out all those exclamation points! An exclamation point is li...
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jumpserver-华为云免费堡垒机解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...d/bak/ wget http://mirrors.163.com/.help/CentOS6-Base-163.repo yum clean all yum makecache 如果是REHL需要修改 1.删除redhat原有的yum rpm -aq|grep yum|xargs rpm -e --nodeps 2.下载yum安装文件 wget http://mirrors.163.com/centos/6.7/os/x86_64/Packages/yum-3.2.29-69.el6.ce...
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如何设置squid使外网也可以通过代理服务器上网,并且使用代理服务器的ip地...

... dns_nameservers ******** cache_effective_user squid squid http_access allow all 原来加上一条 http_reply_access allow all 就可以了。squid 代理服务器
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Windows下MySql安装配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...务器端,解压2.安装Mysql服务:进入bin目录,mysqld.exe --install (指定安装的MySql服务名)。(卸载 net stop servicename;...1.下载服务器端,解压 2.安装Mysql服务: 进入bin目录,mysqld.exe --install (指定安装的MySql服务名)。 (卸载 net stop se...
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Linux MySql编译安装 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...d mysql useradd -g mysql mysql #开始编译安装 cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \ -DMYSQL_UNIX_ADDR=/tmp/mysql.sock \ -DDEFAULT_CHARSET=utf8 \ -DDEFAULT_COLLATION=utf8_general_ci \ -DWITH_EXTRA_CHARSETS=all \ -DWITH_MYISAM_STORAGE_ENGINE=1 \ -DWITH_INNOBASE_STORAGE_ENGIN...
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ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注IT技能提升

...ance(REFCLSID rclsid,LPUNKNOWN pUnkOuter=NULL, DWORD dwClsCOntext=CLSCTX_ALL); HRESULT CoCreateInstance(LPCOLESTR szProgID, LPUNKNOSWN pUnkOuter=NULL, DWORD dwClsContxt=CLSCTX_ALL); 后两个参数不管,第一个参数要不传入CLSID,要不传入字符串形式的progID. 例子代码如...