Niu Sancun: how does python crawl the skin pictures of the hero League? Reptile combat!

I believe many of my friends are players who love the hero League. The skin production of the hero League is still relatively exquisite. Xiaobian, who has a collection hobby, plans to climb down the skin of the official website with a crawler. Next, let's see how Xiaobian uses python to climb the skin of the hero League! (python crawler source ...

Posted by djetaine on Mon, 17 Jan 2022 11:18:03 +0100

Python operation Excel library summary

Several common Excel libraries openpyxl, xlrd/xlwt, xlwings and xlsxwriter are explained in detail. In order to further understand the similarities and differences of each library, so that it can be used flexibly in different scenarios, this paper will horizontally compare 7 common modules that can operate Excel files, and consolidate learning ...

Posted by radi8 on Mon, 17 Jan 2022 11:38:24 +0100

Detailed explanation of Linux ❉ SetUID (SUID), SetGID (SGID) and SetGID (SGID)

A detailed explanation of the usage of special permissions for SetUID (SUID) files 1 Introduction [root@localhost ~]# ls -l /usr/bin/passwd -rwsr-xr-x. 1 root root 22984 Jan 7 2007 /usr/bin/passwd It can be seen that the x permission bit originally represents the permission of the file owner, but the s permission appears. This permission ...

Posted by gotissues68 on Mon, 17 Jan 2022 10:55:00 +0100

HashMap source code nanny level analysis

HashMap source code nanny level analysis Jdk1.0 is used here 7 jdk1. 8 becomes a node node. First analyze 1.7 and then 1.8 1, What is a hash table hash table It is a very important data structure with rich application scenarios. The core of many caching technologies (such as memcached) is to maintain a large hash table in memory. This paper ...

Posted by uNF on Mon, 17 Jan 2022 10:59:30 +0100

Ajax introduction, encapsulation, synchronous and asynchronous & Ajax related interview questions

1, Introduction to Ajax (1) What is Ajax? Ajax = asynchronous JavaScript and XML;Ajax is a technology for creating fast and dynamic web pages;Ajax can make web pages update asynchronously by exchanging a small amount of data with the server in the background. This means that a part of the web page can be updated without reloading the whole we ...

Posted by kevdotbadger on Mon, 17 Jan 2022 11:21:19 +0100

Color and moving object recognition system

Color and moving object recognition system 1. Development tools Python version: Anaconda's Python environment version 3.8 Development software: pycham Community Edition Recognition model: deep learning model, general learning model Related modules: opencv python = 3.4.8.29 module 2. Environmental construction Install Anaconda and add the path t ...

Posted by phpvolution on Mon, 17 Jan 2022 11:05:04 +0100