Programmer Group

Example: Download something with Thunder. Before downloading, a file will be built locally and renamed after downloading.When the client downloads something, it receives part of the data from the server to write into the file just now, and then writes in again. When all the data is written, it means the ...

Using urllib Library of python system to write simple crawler urlopen() Gets the html source code for a URL read() reads out the html source content decode("utf-8") converts bytes into strings #!/usr/bin/env python # -*- coding:utf-8 -*- import urllib.request html = urllib.request.urlopen('htt ...

Write in the front: Navigation in the mobile end of the network format layout everywhere, how to set the width and height to adapt? How do elements align? How to choose the most efficient code for different scenarios? Smart use of margin, padding and other basic attributes, small skills can solve many problems! Float layout 1. Scene Home page n ...

Memory and External Memory: Early Android phones were divided into memory and external memory. Memory was provided by mobile phones, and external memory could be added. Nowadays, Android phones generally have only memory, no external memory. Running memory other memory: Memory can be divided into ...

1. Preface Many times you need a control that can replace the container control, automatically accommodate multiple widget s, adjust the width and height, and then provide scrollbar function, which necessarily requires the QScrollArea control, can set the spacing between subpanels, and so on. It is also used in many systems, such as temperature ...

Preface I haven't written an article for a long time. Today I have time to write out what I have always wanted to say, which is a kind of summary. This article mainly talks about the background framework and the interaction with the front-end in the front-end and back-end separation mode (including app development). The front-end and back-end ...

In fact, the way of locating elements in APP automated testing is basically the same as that in Web automated testing. Whether it is APP or Web automated testing, the most important step is to locate elements. Only when elements are located accurately, can relevant elements be operated. Appium also p ...

Design and Implementation of Enterprise Office System Design and implementation of enterprise office system Design and implementation of enterprise office system Design and implementation of Enterprise Office System SQL Server database creation statement Design and Implementation of Enterp ...

I. Preface Tree Navigation Bar Control is the most powerful and classic one among all the controls. Among many buyers, it is also the most frequently used because it has a large collection of display effects, such as left Icon + right arrow + front icon + various color settings, etc. It covers all the ...

Introduction to Vuex Introduction to installation and composition of vuex image.png Introduction to vuex vuex is a state management mode for vue.js applications It uses centralized storage to manage the state of all components of an application. And with the corresponding rules to ensure that changes occur in a predictable ma ...