From media platform data statistical analysis crawler [interesting headlines] simulation landing analysis details and data statistical interface details

Declaration: This article is only used for learning research, to realize data statistics and analysis of your account Catalog 1. Login process 1.1 DES encryption algorithm of login field 1.2 simulate login and obtain token 2. Video content data 2.1 all 2.2 to be reviewed 2.3 released 2.4 audit fail ...

Posted by Cerberus_26 on Thu, 27 Feb 2020 08:34:13 +0100

Create RAM program and verify the program running on DDR

Previously, we verified that the program runs in SRAM, that is, the program runs in L2 cache, but for starting the operating system, this is not enough. The operating system must have enough ram, so we must run the program in RAM, that is DDR. Environmental Science CodeWarriorDevelopmentStudio for ...

Posted by Wolf_22 on Wed, 26 Feb 2020 09:06:26 +0100

About Java/Kotlin downloading pictures, the problem that pictures can't be displayed when they are opened

Picture download is a very simple function. I can get the stream from the online address through IO stream, and then output the stream to the file to complete the download function. However, recently, I found that the picture download in a website is successful, but it can't be opened when it is opened, which puzzled me. No one has made it clea ...

Posted by downfall on Mon, 24 Feb 2020 14:10:16 +0100

Fundamentals of Computer Visual Digital Image Processing

Image Processing Basis 1. Software Installation In the computer vision course, image processing is done in the python environment, so you need to select the software that can edit the python statement. The visual interface of PyCharm is selected here. In addition, there are editors such as VScode,Su ...

Posted by wildcolour on Sun, 23 Feb 2020 04:13:37 +0100

C + + self created nail live brush

Last time, the nail brush was really popular, maybe because of the special period But this program is still insufficient!! At the strong request of my friend, I added the half way cancellation function. Source code: #include <windows.h> #include <stdlib.h> #include <stdio.h> #include & ...

Posted by MikeDXUNL on Fri, 21 Feb 2020 16:04:33 +0100

Quick Start for the http Pressure Tool wrk

[TOC] Quick Start for the http Pressure Tool wrk Thank you, teacher cap1537 I've used a lot of manometry tools, but I haven't found the one I like.It feels good to try wrk recently. Write down this guide for yourself to remember, and if it helps you, it's also good. install Wrk supports most UNIX-like systems and does not support windows.Oper ...

Posted by AZDoc on Wed, 19 Feb 2020 18:33:23 +0100

Data visualization of Python learning

Common Python packages Matplotlib Seaborn Pandas Bokeh Plotly Vispy Vega gaga-lite Matplotlib visualization Matplotlib installation pip install matplotlib-i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com If you fail, try this: Update pip first and install matplotlib python -m pip ins ...

Posted by swimmerphil1 on Wed, 19 Feb 2020 16:04:51 +0100

A algorithm to solve eight digital problems (C + + implementation)

[experimental principle] 1. Eight digital problems Judging whether there is a solution or not: directly judge whether there is a solution according to the reverse order number. For an eight digit number, after the sequence is arranged, each time the empty bit and the adjacent bit are exchanged. After ...

Posted by missy3434 on Sun, 16 Feb 2020 06:42:12 +0100

[notes on questions] P1042 table tennis

Pit 1: there are several lines of input, but the information should be treated as a whole. For example, the score of the last game in the first row is 2:1, which is not the end of the match. This score should be inherited to the information in the second row for further processing. Pit 2: the end of a game, if and only if one of the scores is g ...

Posted by zeddeh on Fri, 14 Feb 2020 18:00:56 +0100

python crawler - requests+xpath crawling 8684 bus query website

1, Analysis website url = 'http://xian.8684.cn/' 1. Route xpath of the second layer: # Find all links starting with a number number_href_list = tree.xpath('//div[@class="list"][1]/a/@href') # Find all links that start with a letter char_href_list = tree.xpath('//div[@class="list"][2 ...

Posted by renojim on Thu, 13 Feb 2020 20:39:33 +0100