python reads and writes Excel files

I. Reading and Writing excel with xlrd and xlwt First download and install xlrd and xlwt libraries. 1. Open excel     readbook = xlrd.open_workbook(r'\test\canying.xlsx') 2. Get the sheet of the read file     sheet = readbook.sheet_by_index(1)#Indexing, starting from 0     sheet = readbook.sheet_by_name('sheet2')#The Way o ...

Posted on Wed, 29 May 2019 04:10:18 -0700 by dico

Browser Objects (JavaScript)

window object Windows object is the core of BOM. Windows object refers to the current browser window. Windows Object Method: Note: Some attributes have been explained in the JavaScript Foundation Chapter. Windows objects focus on timers.Example task In the right editor script tag, add code, pop-up dialog box "We ...

Posted on Wed, 29 May 2019 04:03:42 -0700 by patrickcurl

PHP Sixth Day Array Search Algorithms

  <?php //Demonstrate the binary search algorithm for arrays: //Premise: //1. Index array; //2. Arrays are sorted. $arr1 = [2, 5, 8];//, 10, 15, 18, 22, 24, 24, 28,33, 35, 50, 55, 56, 57, 60, 61, 62, 66, 70]; $search = 3; //Specific analysis, the data can be modified to different values, such as: 2, 5, 8, //Principle: Find the ...

Posted on Wed, 29 May 2019 03:39:16 -0700 by bughunter2

Understanding Interthreaded Communication - Give you an example of producer/consumer mode

This article is based on synchronized and ReentrantLock to explain how to communicate between threads. For the contents of the above two locks, you can see my subsequent articles. This article's explanation of inter-thread communication will show the way of inter-thread communication in an all-round way in the form of examples aro ...

Posted on Wed, 29 May 2019 03:30:08 -0700 by rationalrabbit

Spring Boot implements asynchronous calls using @Async

Asynchronous invocation corresponds to synchronous invocation. Synchronous invocation can be understood as sequential execution in the defined order and orderliness. Asynchronous invocation can continue without waiting for the end of the last instruction invocation. We're going to create a Spring Book project to illustrate this. Specific projec ...

Posted on Wed, 29 May 2019 03:02:50 -0700 by racerxfactor

Translate | Play React Form --- Refs Application

Original address: React Forms: Using Refs Author: Loren Stewart Translator: Sprouting Proofreader: Little boy React provides two standard methods for getting values from <form> elements. The first approach is to implement so-called controlled components (see me). Articles published in blogs The second method is to use the ref attribute ...

Posted on Wed, 29 May 2019 02:58:16 -0700 by scbookz

Network Flow Questions 24-7

Question Bank Question Description: Suppose there are n questions in a question bank. Each question is marked with its category. There may be multiple categories of the same question Attribute. Now we need to extract m questions from the question bank to compose the test paper. The test paper is required to contain a specified type of quest ...

Posted on Wed, 29 May 2019 02:49:04 -0700 by jmac2501

Looking at several key technical points of React Native development from a real-world project

After two weeks of basic learning (Flexbox, React.js, JSX, JavaScript), to improve the development of React Native through a real-world project, the following project was found: 1. Project introduction This is what I am learning Jia Penghui A hot teacher on Mucho.com React Native hands-on tutorial After that, write out the course Demo.This cour ...

Posted on Wed, 29 May 2019 01:39:17 -0700 by irish21

Trading any ERC20 token on OceanOne on a de-centralized exchange using Ruby

stay Last Lesson In this section, we describe how to trade bitcoins in OceanOne.OceanOne supports the trading of tokens on any Mixin Network, including all ERC20 and EOS token s, without any formalities and fees, and can simply bill.Here's how to hook an ERC20 token to an OceanOne transaction!With ERC20 token in hand, you can trade any token o ...

Posted on Wed, 29 May 2019 01:21:26 -0700 by andrewb

Java Socket Beginner Record

Socket Network Programming Knowledge Socket is the most used in network programming The basics of networks To communicate between two computers, some necessary conditions must be met 1. Both hosts need a unique identity to represent their identity and location, IP address 2. Common language is required for communication, protocol 3. E ...

Posted on Tue, 28 May 2019 09:27:20 -0700 by learningsql