Programmer Think

In this article, we learn how to simulate do... while loop statements in Python. do... while loop statement Many programming languages, such as JavaScript, Java, C# and so on, provide do... While loop statements. The difference between this loop statement and the while loop is that it iterates at least once. Because it checks the loop conditi ...

C# connect to the SMS interface of China Mobile China Mobile SMS interface (publicity) Mobile SMS platform address: http://mas.10086.cn/login , enter the user name and password to log in. We usually need to dynamically display the content of SMS or add our own project links when using it, so we must contact your customer service manager to op ...

Recursively generate binary reflection Code: Requirements: We use recursion to generate binary reflection gray code. What is gray code? The typical Binary Gray Code is abbreviated as gray code, which is named after the patent "Pulse Code Communication" of Frank Gray (18870913-19690523) published in 1953. It was originally used to ...

Hadoop data processing (sophomore training in 2020) 1, Project background The training content is the statistical analysis of automobile sales data. Through this project, we will deepen our understanding of HDFS distributed file system and MapReduce distributed parallel computing framework, master and apply them skillfully, experience the dev ...

preface The last article mainly introduced the theoretical knowledge of ObjectPool, and then introduced Microsoft Extensions. How is ObjectPool implemented Core components ObjectPool ObjectPool is a generic abstract interface. It abstracts two methods, Get and Return The Get method is used to obtain available objects from the obje ...

Background introduction Single sign on (SSO) means that in a multi system environment, users do not have to log in to other systems after logging in to one system. In the early days, our web systems were all single applications, and all functions were written into a war package. The user login authentication function is relatively simple to ha ...

Parent project Create a maven project l-cloud-alibaba, delete the src directory and modify POM The XML content is as follows: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/ ...

Vue core tutorial Among the three front-end frameworks, Vue is the most popular and React is the most popular; 1, Vue basic knowledge Vue official website 1) English official website: https://vuejs.org/ 2) Chinese official website: https://cn.vuejs.org/ Vue overview Vue (pronunciation / vju) ː/， Similar to view) is a progressive framewo ...

Meaning: let n ants to an apple tree, and give the corresponding coordinates of N ants and N apple trees. To calculate the weight is to calculate the distance between coordinate points, and it is required to calculate the minimum distance! Idea: use the maximum weight perfect matching problem, but now the problem is to find the minimum weight. ...

1. Overview of Research Report This article is the second in the recurrence series of the securities company metalworking Research Report. The text reproduces the market timing based on the relative strength of resistance support (RSRS) of Everbright Securities. The traditional application method of resistance level and support level is to se ...