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Predicate Delegates in C#
... can also be assigned to a Predicate delegate type as below:
Predicate<string> isUpper = delegate(string s) { return s.Equals(s.ToUpper());};
bool result = isUpper("Hello Chap!!");
Any best practices about predicates?
Use Func, Lambda Expressions and Delegates instead of Predicates.
...
Best way to replace multiple characters in a string?
...ll the methods in the current answers along with one extra.
With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.replace('&', '\&').replace('#', '\#').
Timings for each function:
a)...
项目管理实践教程一、工欲善其事，必先利其器【Basic Tools】 - 项目管理 -...
...为安装步骤：
图1：
图2：
注意：Server Port那里，默认端口有80/81/8080三个；如果最后面的CheckBox被选中，则表示使用安全连接【https协议】，这是的端口只有433/8433二个可用。
图3：
图4：
2.CruiseControl.NET ，最新版本是1...
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
...:80
python run_websocket.py
4）如果启动失败，可能是由于 80端口和3000端口已经被占用，或者数据库账号密码不对，请检查
如果是堡垒机是在防火墙后端请修改 /opt/jumpserver/jumpserver.conf
五、web登录
默认账号密码 admin 5Lov@...
\'telnet\' 不是内部或外部命令，也不是可运行的程序 或批处理文件 - 更多...
...的程序 或批处理文件有时在Windows上需要检测一下服务器端口是否开放等需要用到telnet命令。其实telnet不是仅仅属于Linux的命令，Windows平台上默认也有，不过...有时在Windows上需要检测一下服务器端口是否开放等需要用到telnet命令...
Arduino控制RGB三色LED灯实验、程序代码、连线图、仿真 - 创客硬件开发 - ...
...对Arudino UNO板子中带有"~"的3、5、6、9、10、11数字端口写入一个模拟值，通知高电平与低电平持续时间的比值控制LED的亮度变化或者电机的转速。例如：欲使得内置的Arudino UNO 中的led亮度变为原来的一般，编写analogWrite (13,...
Can't connect to localhost on SQL Server Express 2012 / 2016
...ify your SQL Server connection authentication mode matches your connection string:
If you're connecting using a username and password, you need to configure SQL Server to accept "SQL Server Authentication Mode":
-- YOU MUST RESTART YOUR SQL SERVER AFTER RUNNING THIS!
USE [master]
GO
DECLARE @SqlS...
Finding current executable's path without /proc/self/exe
...es a program is expected to create the same environment (argv, environment strings, etc.) for that program as if it were run from a shell, with some optional extras. A program or user can setup an environment that deviates from this convention for other subordinate programs that it launches but if i...
Getting visitors country from their IP
...t($ch, CURLOPT_RETURNTRANSFER, TRUE);
$ip_data_in = curl_exec($ch); // string
curl_close($ch);
$ip_data = json_decode($ip_data_in,true);
$ip_data = str_replace('&quot;', '"', $ip_data); // for PHP 5.2 see stackoverflow.com/questions/3110487/
if($ip_data && $ip_data[...
std::string formatting like sprintf
I have to format std::string with sprintf and send it into file stream. How can I do this?
40 Answers
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