Python

@ (python path) [Python operation Excel]Python operations Excel-----[TOC]Write Excel#!/usr/bin/env python# -*- coding:utf-8 -*-import== wb.add_sheet('sheet1')forinrange(10): forinrange(5): '第{0}行第{1}列'.format(row, col))wb.save('xxx.xls')#

JavaScript is a programming language, the browser has built-in JavaScript interpreter, so in the browser according to the JavaScript language rules to write the corresponding code, the browser can explain and make corresponding processing.first, how

class:A class of things with the same attributes and skills.object:the specific performance of the class.class keywordClass Name: (class name should be capitalized first)code block.country = ' China ' first part: Static variable, static fielddef

Closures:Two nested functions, external functions return the internal function of the argument, external function?def external function (parameter):def intrinsic function ():Passreturn intrinsic functionThe difference between him and the function:1.

The Shutil module provides a number of advanced operations on files and folders. Features that support file copying and deletion are especially available.#copies the contents of the file object Fsrc to the file class object fdst. Length (optional

Print ('I am%s My hobby is Alex'%'lhf')% and% stitchings represents a stringD means shaping numbersFloating-point numbers are decimals.Print ('I am%.1f my hobby is Alex'%97.12)A. XF x represents the number of digits after the decimal pointStrings

PYTHON-M Module NameDirect the current directory "as the running path of the module, without the need for import to run directlyFor example:Python-m simplehttpserver #python2中启动一个简单的http服务器python-M http.server #python3中启动一个简单的http服务器The above

Chapter Content Introduced The forming process of the adorner Open Closure principle Talking about the main function of the adorner and the fixed structure of the adorner Adorner with parameters Multiple adorners

1, Time module: times, DateTime;1), Timestamp (SEC) 1970 00:00:00 defined as 0;time.time ()2), formatted time string3), tuple (struct_time) 9 elements: Year, month, day, time, minute,seconds, weeks, the day of the year 0-6, tm_isdst=0;access Method:

6.0 Install science stack with PIP installation science stack such as numpy, pandas etc 6.1 for Python2.7 versionView installed science stack conditions and versions-m pip list 查看python2 -m pip install --upgrade pip 更新python2 -m pip install numpy 安装

Os.listdir (Path=none)--Output All files under current path os.listdir ()#不给参数默认输出当前路径下所有文件Os.stat (Path, *, Dir_fd=none, follow_symlinks=true)--#查看文件状态信息 Follow_symlinks True returns information about the file itself, flase and, if it is a soft

The use of dichotomy to find premises must be ordered sequencedefSearch (List,val): Start=0 End= Len (list)-1#determine if the number is not in the list ifValinchlist:#Loop until the number is found, return Exit Function while1: Mid= Int (

driver = webdriver.Firefox(executable_path = "d:\\geckodriver")driver.get("https://www.baidu.com")driver.get_screenshot_as_file("d:\\a\\tu.jpg")driver.get_screenshot_as_file("d:\\a\\tu.png")Description: The console error while performing JPG, but

#需求: 1, add product including name, price quantity 2, view product Information 3, delete, 4, modify 5 Exit 6 operation fileImport JSONFile_name= ' Goods.json 'def opfile (Name,content=none):If content:With open (name, ' W ', encoding= ' UTF8 ') as

Python Object-oriented initialProcess-oriented program design is the core of process (pipeline thinking), the process is to solve the problem of the steps, process-oriented design is like a well-designed pipeline, consider when to deal with what

use tag to locateTag is labeled, not commonly usedFor example: Baidu's input box tag is inputwill eventually error, because Baidu Home input tag too much driver =

02_python Foundation _day02 What does the comment in Python do? Single-line and multiline commentsSome code is annotated in the program to enhance the readability of the program.Single-line comment: Start with the # number, add a space, followed

Tag: Item key value pair class COM add div [] 127.0.0.1 OpenWrite an. ini configuration fileCreates a new Config object, assigns a dictionary to the section, and then writes the file.Import Configparserconfig=configparser. Configparser ()

Use Python to implement a simple if Loop statement:Password need to use ciphertext:Import Getpass call Getpass library for password ciphertext input_username = ' Alex '_password = ' 123 'Username =input ("username:")Password = getpass.getpass

(1) Configparse module How to create the following configuration file[DEFAULT]Serveraliveinterval =Compression = yesCompressionLevel = 9ForwardX11 = yes [bitbucket.org]User = HG [topsecret.server.com]Port = 50022ForwardX11 = noImport