Programmer Group

Source network, only for learning, if there is infringement, please contact delete. If we can achieve report automation, we will save a lot of time and complete the work more efficiently. So, how to use python to realize report automation? This article will introduce the common functions of xlwt, xlrd and xlutils, the application of formulas ...

Before that Interface test code coverage (jacoco) scheme When I missed something, this article will make up for it. In the process of using jacoco to do interface code coverage test, there is a problem: there is too much information in the test report, which is very messy and not targeted. Many of them are config, bean and adapter classes, and ...

This article is from: PerfMa Technical Community PerfMa Official Website Summary Recently, our company helped a customer find a JVM problem (JDK1.8.0_191-b12), found that a system is always lost by OS Kill, caused by a memory leak.During the process of investigation, another Bug in JVM was found by mistake.This Bug is likely to cause a lot of ...

rise Fedora's kernel is frequently upgraded.But I found that restarting doesn't use the new kernel.I need to check the GRUB configuration file. ydx@ydx-mf:~ $ cat /etc/default/grub #GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" ...

Scratch is an application framework for crawling website data and extracting structural data. More details about the use of the framework can be found in the official documents. This article shows the general implementation process of crawling cartoon pictures. Scrapy environment configuration The first is the installation of scratch. The blogg ...

Operational Questions of Shandong University of Science and Technology on May 18, 2020 **Title 1: **Square, Rectangle, Cube Two Description Give the length of Square, Rectangle, Cube, Cuboid and find the area. Squares and cubes have equal sides, so you only need to store one side length. A rectangle s ...

Blog introduction This blog is the content of hardware description 3 of digital system experiment in my sophomore year. It is recorded here to prevent loss. The contents are as follows: Timing analysis of IIC serial bus VHDL programming design special state machine and two pieces of asynchronous FIFO to realize ping-pong operation Desi ...

float and double can only be used for scientific calculation or engineering calculation. In business calculation, we need to use java.math.BigDecimal . I heard that a colleague said that a friend of his had been used by hackers because he used double to calculate money, resulting in a lot of losses. Let's talk about this. brief introduction ...

I believe that many small partners have seen the response time and real-time display function of url interface in some commercial products. It can be understood that the slow query of web interface and the slow query of sql have the same magic, but if you want to do it, you have no way to start and don't know how to realize this function, so to ...

Hi, Hello, this is Mingo. During my time of learning Golang, I wrote detailed study notes on my personal WeChat official account "Go programming time". For Go language, I am also a beginner, so writing things should be more suitable for students who are just in contact. If you are just learning Go language, do not pay close attention ...