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Download a fighting fish first (you can do it without downloading, the URLs are all here, right) Grab a json package by grabbing it and get the address below   Observed tests show that modifying offset values is equivalent to paging an app Accessing this url returns a large dictionary with two indexes, one error and one data.Data is another 20 ...

I've always been particularly interested in python, and now I'm learning python. Here's how to use the library selenium and beautifulSoup from Python to crawl 360 lottery net winners: First open the page you want to crawl to see its content structure: Web address is http://chart.cp.360.cn/kaijiang/ssq?sb_spm=b5d6e27c6 ...

First, for mysql databases, the default character is latin1 This latin1 is the culprit that we can't write in Chinese.The solution, then, is to change the character set to UTF-8 The easiest way to do this is to modify the windowMy.iniProfile),My.iniWhere and how to modify it to UTF-8 is as follows: https://www.cnblogs.com/Ray-xujianguo/p/332 ...

Environment: Python 3.6 + Scrapy1.4 What I want to do: 1. Complete a simulated landing _2. After successful login, extract the cookie s and save them locallyCookie.txtFile _3. Use it again from localCookie.txtRead cookie s and omit simulated login. I read some blogs about how Scrapy manipulates cookies, and they are all very different (they don ...

Introduction to ModelForm ModelForm a. class Meta: model, # Corresponding Model Of fields=None, # field exclude=None, # Exclusion field labels=None, # Prompt message help_texts=None, ...

Introduction to ModelForm ModelForm a. class Meta: model, # Corresponding Model Of fields=None, # field exclude=None, # Exclusion field labels=None, # Prompt message help_texts=None, ...

As a Python beginner, when learning Python programming, we often see some error messages. Python has two types of errors that are easy to recognize: syntax errors and exceptions. Python assert is used to judge an expression and trigger an exception when the expression condition is false. syntax error Python syntax errors, or parsing errors, ar ...

Rent price analysis of rental housing in Shanghai In this paper, we use crawler to crawl the housing rental data of Shanghai, and use python to clean, analyze and display the data, and carry out data mining modeling and prediction for housing rent. # Import related packages import pandas as pd import numpy as np import seaborn as sns import ma ...

Exception capture 1. What is exception capture """ The program can continue to run if there is an exception in the process of program execution. Note: you don't need to use exception capture all the time. You should use it when you know that there may be an exception in a certain place and you don' ...

preface The text and pictures of this article are from the Internet, only for learning and communication, and do not have any commercial use. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Install pygame and create a ship that can mo ...