Programmer Group

I. Preface For guaranteed customer group, how to conduct detailed analysis and mining on the guaranteed customer group type? As shown in Figure 1, how do I get the label and how do I label it? Figure 1: Sample Diagram Using graph technology, you can label the triangle directly. Algorithmic steps Guarantee association data cleaning; ...

Competitive conditions One of the most common errors in concurrent code is race condition. The most common is data race. On the whole, the problem of sharing data between all threads is caused by modifying data. If all shared data are read-only, there will be no problem. But this is impossible. Most of the shared data needs to be modified. Th ...

In this series, I translated a series of articles written by the developers of collaborative process and Flow, in order to understand the reasons for the current design of collaborative process, Flow and LiveData, find their problems from the perspective of designers and how to solve them. pls enjoy it.This article is the first to analyze the r ...

number theory Prime table Number of prime numbers with length i cnt [ 1 ] = 4 cnt [ 2 ] = 21 cnt [ 3 ] = 143 cnt [ 4 ] = 1061 cnt [ 5 ] = 8363 cnt [ 6 ] = 68906 cnt [ 7 ] = 586081 Prime table within 1000 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 17 ...

Chapter I Q1 brief introduction to the application field of Linux system Linux The server; Embedded Linux System; Software development platform; Desktop applications Q2 briefly describe the characteristics of Linux system Openness, multi-user, multi task, good user interface, equipment independence, rich network functions, reliable s ...

Recently, the company has desktop client development requirements and has certain requirements for style and interface feedback. After comparing various open source UI frameworks, it is confirmed to use MaterialDesign. 1. Introduce the framework MaterialDesignThemes. Note the corresponding version number. I use 2.6.0. The reason is this version ...

One sentence a day There is only one kind of heroism in the world, that is, to love life after recognizing the truth of life catalogue 1. Data structure 2. Linearity table 3. Sequence table Create classes and member properties and member methods create object 1. Print sequence table:   public void display() 2. Number of retur ...

You can use the ps command to view the running process. You usually use the parameters of the ps command to display more output information. I like to use the - e parameter to see each running process, and the - f parameter to get the full details of each process. Here are some examples:$ ps PID TTY TIME CMD 88000 pts/0 00:00: ...

1 Start 1.1 Build environment 1.1.1 Python Version Selection Recommended above 3.6, python2 encoding is very confusing 1.1.2 Installation Package Download It is recommended that you download it directly from the official website. For example, the latest version of 2021/11/27 is 3.10.0. https://www.python.org/downloads/release/python-3100/ Windo ...

There are many articles that discuss the concept of binding and explain how to use static resources and dynamic resources to bind properties. These concepts use the data binding expressions provided by WPF. In this article, let's study the different types of data binding expressions provided by WPF.introduceData binding is a powerful technology ...