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Multiple commands on a single line in a Windows batch file
... by turning on delayed expansion:
pax> cmd /v:on /c "echo !time! & ping 127.0.0.1 >nul: & echo !time!"
15:23:36.77
15:23:39.85
That's needed from the command line. If you're doing this inside a script, you can just use setlocal:
@setlocal enableextensions enabledelayedexpansion
@ec...
Reconnection of Client when server reboots in WebSocket
... @Peter, not sure if ws state is open you need to (or should) ping, if I'm correct it's already in websocket protocol. This overkill just had load on your server...
– comte
Apr 5 '18 at 22:07
...
Oracle TNS names not showing when adding new connection to SQL Developer
...ys find out the location of the tnsnames.ora file being used by running TNSPING to check connectivity (9i or later):
C:\>tnsping dev
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 08-JAN-2009 12:48:38
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parame...
Validating IPv4 addresses with regexp
...09.09.09.09 considered a valid IP? It also gets matched by this regex. But ping throws error message like ping: cannot resolve 09.09.09.09: Unknown host. I think it might be wise to reduce the matching to dot-decimal notation matching only. This entry discusses on leading errors in IP addresses.
...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
...扩展到并行算法、线程管理，最后还介绍了多线程代码的测试工作。
本书的附录部分还对C++11新语言特性中与多线程相关的项目进行了简要的介绍，并提供了C++11线程库的完整参考。
本书适合于需要深入了解C++多线程开发的读...
Connecting to TCP Socket from browser using javascript
...://IPAddress:Port');
connection.onopen = function () {
connection.send('Ping'); // Send the message 'Ping' to the server
};
http://www.html5rocks.com/en/tutorials/websockets/basics/
Your server must also be listening with a WebSocket server such as pywebsocket, alternatively you can write your...
《精益创业》读书笔记 - 资讯 - 清泛网 - 专注C/C++及内核技术
...项实验，找到计划中非事实性、假设性的部分，然后制定测试方法。如果采用这种方法，我们可以开发一个最小化可行产品，让项目正...将项目视作一项实验，找到计划中非事实性、假设性的部分，然后制定测试方法。如果采用...
VMware .GHO文件安装系统的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...文件因为是体积过大，再者刻盘也不方便，如果下载后想测试安装一下又不想物理机安装，那么vm虚拟机是一个很好的方...
现在很多系统都直接发gho文件因为是体积过大，再者刻盘也不方便，如果下载后想测试安装一下又不...
Outlook 测试账号设置失败的解决方法 - 环境配置 - 清泛IT社区，为创新赋能！
发送测试电子邮件消息: 无法发送此邮件。请在帐户属性中验证电子邮件地址。 响应服务器: 550 5.7.1 authentication is required
如图：
解决方法：
设置完成，OK。