Python

Upper () The letters in the string are capitalized from lowercaseLower () The letters in the string are changed from uppercase to lowercaseCapitalize () The first letter of the letter in the string and the remaining lowercaseTitle () The first

Objective: To obtain the name and transaction information of all shares of SSE and Szse, and to keep them in the file.Technology used: Requests+bs4+reSite selection (Selection principle: the static existence of the Stock information HTML page,

In an age when artificial intelligence is maturing, there is a lot of data to be processed. At the same time, we can see the python figure in the data processing of AI, VR and unmanned vehicle, UAV and smart home, which will promote the future

Python is dynamic language 1. Definition of dynamic language动态编程语言is 高级程序设计语言 a category that has been widely used in the field of computer science. It is a class 运行时可以改变其结构 of languages: for example, new functions, objects, even code can be

Exceptions and ErrorsOne: Syntax error (this error, the syntax of the Python interpreter cannot be detected, must be corrected before the program executes)# Syntax error demonstration one if# syntax error demonstration two defPass# syntax error demo

The time complexity of bubble sorting is the idea of O (n^2) bubble sort: compare two adjacent elements each time, and swap them if they're in the wrong order.For example, there are five numbers: 12, 35, 99, 18, 76, from the big to the small sort,

I. Knowledge reserve for character coding1. How the text editor accesses the file (Nodepad++,pycharm,word)Opening the editor opens a process that is in memory, so the content written in the editor is also stored in memory, the data is lost after the

URLLIB2 is a component of Python's acquisition of URLs (Uniform Resource Locators). He provides a very simple interface in the form of a urlopen function, which is capable of acquiring URLs using different protocols, and he also provides a more

Message Queuing (Mq,message queue) in the message data transmission of the preservation of data communication provides a guarantee and real-time processing convenience, here we take a look at the python thread of the MQ Message Queuing

This article mainly introduces the Python+socket implementation of the TCP protocol based on the customer and server Chinese auto-reply chat function, combined with the case of the Python+socket implementation of the TCP chat program with automatic

This article mainly describes the go in the end there is no reference to the parameters (compared to C + +), the need for friends can refer to the following Three ways to pass parameters in C + + Value passing: One of the most common ways to pass a

Python3.5 sample method for modifying iis web. CONFIG by programming, This article describes how to modify iis web. CONFIG by using Python3.5 programming. We will share this with you for your reference. The details are as follows: #! /Usr/bin/env

Modules and packages, modulesModule A module is a file that contains python definitions and declarations. The file name is the extension of the module name and. py. In fact, the import module is divided into four general categories: 1. code written

Python Programming to Implement the regular expression deletion command function, python programming to delete commands This example describes how to implement the regular expression deletion command in Python programming. We will share this with

Detailed descriptions of List Operation instances in Python programming: [Create, use, update, and delete] and python instances This example describes Python list operations. We will share this with you for your reference. The details are as follows:

Python implements the idea and code of shopping programs, and python shopping program ideas Requirements: After the program is started, ask the user to enter the salary, and then print the commodity list with the serial numberThe user enters the

I often talk about process thread coroutine, and I often talk about thread coroutine. I. Processes and threads 1. Process The applications on our computers are all processes. Assume that the computers we use are single-core, and the cpu can only

Python function (1): initial function, python function initial After learning many basic python types, we can finally enter the next stage. Today we will enter a new world of functions. Preview: 1. Write a function to calculate the numbers, letters,

Easygui. msgbox ("Hello there! ") Error: Tcl_Init error: Can't find a usable init. tcl in the following directories solution, includedirectories Today, I learned about Parent and Child programming. When I saw the first gui running (the Code is as

Python logger module and pythonlogger Module1 Introduction to the logging Module The logging module is a standard module built in Python. It is mainly used to output running logs. It can be used to set the log output level, log storage path, and log