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Article directory UNIX_NET Get server time connect function Get time client program implementation Get time server implementation antic The use of macro definition Source address UNIX_NET Get server time connect function #include <sys/types.h> /* See NOTES */ #include <s ...

String splicing Actual scenario: concatenate the data in the list into a string Solution: use the str.join() method >>> li = ['cxk', 'cxk', 'kk', 'caibi'] >>> ''.join([str(i) for i in li]) 'cxkcxkkkcaibi' Generator expressions are recommended. If the list is large, you can save a lot of memory space >>> ''.join(str(i) ...

When a project is encountered, you need to install the python project in the Intranet environment, so you write a script to automatically deploy the python environment and the python project in your spare time. Because the project is classified, only the shell script to automatically deploy the python environment is provided here, including the ...

This article uses C++ RAII mechanism To encapsulate the mutex and condition variables, to make them manage the life cycle of mutex and condition variables automatically, and to avoid resource leakage caused by manual maintenance. This article uses Pthread Library under Linux. mutex MutexLock First, the mutex is encapsulated. The following is th ...

After using groovy to crawl the historical weather of 3000 + cities in China, I need to draw a Time Series table for each city to reflect the change curve of the temperature difference between the highest temperature and the lowest temperature. There is a problem here. Every time I plot the icon, I always call up the system browser to open it f ...

Step 1: create root user and use Create root user: sudo passwd root //Will let you enter the current user password. Enter press enter to enter the root password twice Using the root user: su root //Prompt for the root password. Input can Step 2: enter the root account update system root@VM-0-1 ...

The tools needed for making the template machine can be extracted from the online disk: https://pan.baidu.com/s/17vnFic6xKVdDaY0g7uRv5g Extraction code: m005 Create a new virtual machine, select a typical installation, and click Next Choose to install the operating system later, and click Next Select Linux operating system, CentOS 64 bit vers ...

Optimization and configuration of Apache services Log segmentation Log file analysis Apache compression Setting up the Apache cache I. log segmentation The default storage location for Apache log files: /var/log/httpd/ It is divided into access log and error log by default. The purpose of log segmentation: As the number of visits to the si ...

When I write the test framework based on httpclient, I use groovy script as the script language of the test case. Naturally, I need java to execute the uploaded test script. After reading the example, I encapsulate it. Generally speaking, it is similar to java reflection execution Java method. But there are also some incompatibilities. Some of ...

Background: due to the company's current business demand, many business arrivals are through the offline QQ notification channel. When the business volume is large, operators need to spend a lot of time to send QQ information notification channels. So I found the cool q deployment shared by Daniel on the Internet to realize the QQ robot, and su ...