Pygame gadget: Checkbox

Home, addicted to pyGame programming, this article will share some simple small features based on pygame, which can be well embedded in the game to increase game interactivity. This article focuses on how to implement checkboxes with pygame. The article reuses some of the classes and methods from p ...

Posted on Tue, 04 Feb 2020 19:33:01 -0800 by everogrin

Several case s where transactions for the SpringBoot series of tutorials do not work

Several case s where transactions for the SpringBoot series of tutorials do not work Previous posts on declarative transactions @Transactional use posture, knowing only that the correct posture may not be enough, and what scenarios do not work to avoid pit mining.This article will focus on a few case s where transactions do not take effect & ...

Posted on Tue, 04 Feb 2020 17:03:37 -0800 by Rupuz

Database - index

Database - index MySQL's official definition of Index is: Index is a data structure that helps MySQL obtain data efficiently. There is a big difference between 0.5s for data acquisition and 0.001s for data acquisition! Therefore, it is necessary to study index! The essence of index: index is data stru ...

Posted on Tue, 04 Feb 2020 09:52:53 -0800 by peterj

Details of python datetime module

1, Introduction to datetime module (1) The datetime module contains the following classes: Class name Function description date Date object, common attributes are year, month, day time Time object datetime Date time object, commonly used attributes are hour, minute, second, microsecond datetime_CAPI ...

Posted on Tue, 04 Feb 2020 06:31:06 -0800 by morphius

cast of Go daily

brief introduction Today we will introduce another library of SPF 13 cast . cast is a small and practical type conversion library for converting one type to another. cast was originally developed for hugo Medium. Rapid use First install: $ go get github.com/spf13/cast After use: package main import ( "fmt" "github.com/spf13/cast" ) fun ...

Posted on Tue, 04 Feb 2020 04:18:06 -0800 by Lumio

50 lines of Python code, easy to translate Chinese and English

Python learning exchange group: 125240963, daily sharing of dry goods within the group, including the latest Python enterprise case study materials and zero basic introductory course, welcome to join the group to learn and exchange Nowadays, more and more attention is paid to English ability. If you know English, you will come into contact w ...

Posted on Mon, 03 Feb 2020 07:35:46 -0800 by Gast

Python learning 05.08: Python variable scope

The so-called Scope is the effective range of a variable, which range a variable can be used in. Some variables can be used anywhere in the whole code, some variables can only be used inside the function, some variables can only be used inside the for loop. The scope of variable is determined by the definition position of variable. The scope of ...

Posted on Mon, 03 Feb 2020 07:35:53 -0800 by leeandrew

Luogu the first task of Luogu

From now on, I will try to share the challenges and tasks of Luogu with you. Please comment and pay more attention Article directory Super Mary game A+B Problem Xiaoyu buys stationery Swimming time of small fish Links: 1.Luo Gu 2.Theorie des Distribu Task 1 (difficulty: 1) Complete this task by at ...

Posted on Sun, 02 Feb 2020 22:59:23 -0800 by bjoerndalen

Spring Boot: Introduction

1. What is Spring Boot Spring Boot is a new framework provided by the Pivotal team and is designed to simplify the initial build and development of new Spring applications.The framework is configured in a specific way so that developers no longer need to define a template configuration.In my words, Spring Boot is not really a new framework. It ...

Posted on Sun, 02 Feb 2020 18:01:34 -0800 by vanlier

How to splice strings gracefully in Java

In Java, how do we do string splicing? String splicing is something we often do in Java code, which is to splice multiple strings together. As we all know, string is an immutable class in Java, so once it is instantiated, it cannot be modified. So how can we gracefully splice our strings? I found a lot of technical data here. Basically, the str ...

Posted on Sun, 02 Feb 2020 04:11:34 -0800 by sleepingdanny