Programmer Help

Python crawler, who has learned two lessons, is also an introduction. After knocking on the case code for two days, I suddenly found that although these codes have different functions and different ways of writing, they are ultimately rules-based, and the overall framework is consistent. So I sorted out a simple crawler framewor ...

Introduced modules re Modularsubprocess Modular Three questions in life What re module Mainly some methods of operation related to regular expressions What is regular expression It is the formula of a series of special meaning characters. Why use regular expressions? Most of the data we get in our daily life are strings, but us ...

In daily work, I define the tool class of Dialog for use. The Dialog pops up from the middle of the screen below. The effect is as follows: The following is mainly about: Custom Dialog Tool Class Custom Layout File Custom Dialog Display Style Display/close Dialog (using custom dialog) 1. Custom Dialog Tool Class Defin ...

origin Because the project uses the AES_DECRYPT method of mysql, and wants to use golang to implement this method, but after studying for half a day, I did not understand what happened. Finally, I found that golang currently supports CBC by default, but MySQL currently uses ECB mode, so it needs users to block encryption, and summarizes the var ...

Yesterday, the 2nd edition of the mall project was made. The UI gave a design drawing. The merchandise pictures could be slid left and right. At first, it thought that a Recycler view could be slid in one direction. After making the UI, it said that the effect was not right. Referring to the effect of three squirrel mall homepa ...

Preface Weekly Contest 107 First question Long press key: Your friend is using the keyboard to enter his name. Occasionally, when typing the character c, the key may be pressed long, and the character may be typed one or more times.You will check the character typed entered on the keyboard. If it corresponds to the name of your friend (some o ...

Old boy python stack day8 File operation Coding: utf-8 gbk... Operation mode: read-only, write-only, add-on, read-write, write-read... Open the file in what encoding way, and operate in what encoding way Read-only: r f = open('d:\Head teacher of model housewife nurse.txt',mode='r',encoding='UTF-8') content = f.read() print(content，type(conten ...

android system provides a powerful api for developers to use, but the dialog of the system has not been very beautiful, so in many cases we need to customize dialog, today we use two different ways to achieve the same effect of customized dialog. First of all, give you two different ways to achieve the same dialog effect: ...

1. Python Profile: Python is a dynamic, explanatory, strongly typed language. Dynamics - Data types need not be declared; Interpretative - Real-time "translation"; Strong Type Definition - Replacing Types Needs Mandatory Conversion       2. Variable and character encoding: ascii code: 1 byte, 8 bits unicode code code: 2 bytes, 16 ...

The goal of this time is to crawl all reviews of the songs specified on NetEasyCloud Music and generate word clouds.   Specific steps: One: Implementing JS Encryption Finding this ajax interface is not difficult. The problem is that the data passed is encrypted by js, so you need to look at the JS code. By debugging, we can find that the data ...