python self writing software (2)
With the background of blog, we used Pyqt5 to implement a simple calculator. I think it's important to use the eval function of py
When did I write the player or implement the java directory tree or xml parser I want to write recently
The idea is to click the button and add it to string to form algorithm expression, and then rely on python's po ...
Posted by jarvishr on Thu, 23 Apr 2020 08:16:21 -0700
Detailed Junit Unit Test Framework for JAVA Automation
Detailed Junit Unit Test Framework for JAVA Automation
1. Overview of JUnit & Configuration1. What is Junit?
Junit is an open source test framework for the Java programming language for writing and running tests.Official address: https://junit.org/junit4/
2. Maven Configuration
?xml version="1.0" encoding="UTF-8"?>
xsi:schemaLocatio ...
Posted by phplearner on Tue, 14 Apr 2020 18:58:28 -0700
Learn programming from python - vamei
Programming and computer
Summary
Computer
Five structures of computer: input device, memory, controller, arithmetic unit, output device
Memory and arithmetic unit are collectively called CPU
The computer operating system is responsible for the management of computer hardware resources - > system call
programming
Programming is a way of int ...
Posted by bellaso on Wed, 08 Apr 2020 00:56:54 -0700
Remember to parse the string once: find the starting position of the specified N strings in the target string
In our project, there is a scenario: a drop-down selection box, which supports user input and displays the final result in the text box (that is, ordinary string, and the user's selection in the drop-down box is in []) I don't know if I can imagine that when I write a note, it's a little close to the function of choosing "tag tag" in ...
Posted by bidnshop on Sat, 28 Mar 2020 04:15:35 -0700
.Net Module Encapsulation
Module Encapsulation
Programming
Calculator implemented with object-oriented logic
class Calcuator
{
public int Add(int i, int j)
{
return i + j;
}
public int Mul(int i, int j)
{
return i - j;
}
public int Max(int i ...
Posted by latinofever on Mon, 02 Mar 2020 17:26:01 -0800
Android learning note 5, introduction to some Android methods
1, layout in Android
1. Linear Layout: it is divided into vertical Linear Layout (android:orientation = "vertical") and horizontal Linear Layout (android:orientation = "horizontal" / / horizontal Linear Layout) according to the arrangement direction.
When a linear layout defines an a ...
Posted by bruceleejr on Sat, 29 Feb 2020 23:52:43 -0800
C + + details
Article directory
Separation of implementation and declaration
Do not use using namespace std;
The enhancement of C + + to C language
Key 1 references
Notes for reference
The nature of quotation
Pointer reference
Constant reference
Member function call const to decorate object instance
Construction ...
Posted by Jabop on Mon, 24 Feb 2020 23:27:01 -0800
javascript brief demo understanding, object, BOM
Document is a javascript built-in object that represents the document part of the browser
document.write("Hello Javascript"); writes a string to the document
<html>
<body>
</body>
<script>
document.write("Hello Javascript");
</script>
</html>
This is a si ...
Posted by compsci on Sun, 23 Feb 2020 22:24:32 -0800
Glide decryption
Glide is now the most widely used image loading framework, and has always wanted to work on it. Every time, it is deeply involved in it... This time, I will make a thorough analysis of it and try to cover the whole process and its details.
This article's Glide parsing is based on the latest version 4.1 ...
Posted by opalelement on Mon, 17 Feb 2020 02:08:51 -0800
Tomato alarm one (the framework of react antd typescript)
1, Main documents
React
React Router
Ant design
TypeScript
Redux
2, Start using and experience react scaffold
npx create-react-app react-app-demo
cd react-app-demo
yarn start
3, Follow the document
Rendering an element
ReactDOM.render(<h1>Hello, world!</h1>, document.getElementById('root'));
Use of rendering JSX
const name = ...
Posted by Niruth on Wed, 12 Feb 2020 08:44:27 -0800