• Combine table and calendar of elementui to make a price calendar


    In the project, we need to make a price calendar to display and modify the date and price. Let’s take a look at the final effect first, and then use the table and calendar of elementui to realize it. Let’s take a look at the main code (the code only retains the main code and […]

  • Algorithm – how to get the maximum profit from stock trading


    As a leek who has earned several months’ salary from sideline business, he obviously has a lot of interest in this kind of problem, but in practice, what he often doesn’t know is the future price of the stock, so he needs to predict. In fact, your firm offer will also affect the stock in […]

  • C # standard event flow


    Changes in clothing prices trigger Taobao’s publishing activities and the event flow of consumers buying clothes public class EventStandard { public class Clothes { /// ///Clothing code /// public string Id { get; set; } /// ///Clothing name /// public string Name { get; set; } /// ///Clothing price /// private double _price; public double […]

  • How to choose a good website


    Nowadays, there are all kinds of CS websites on the Internet, which makes customers a little difficult. There are many related websites, I don’t know how to choose. Since you don’t know how to choose, it’s better to consider according to the following characteristics, and strive to choose a formal proxy website.A good CS website […]

  • Explain the highlights of iPhone 12 series mobile phones, and you will know whether it is worth buying


    The absence of the iPhone 12 Series in Apple‘s autumn launch in September has greatly increased the appetite of Apple fans. However, due to the “postponement” of the release, the configuration of the new iPhone has long been guessed, such as 5g and 5nm chips, and even the names and models of four mobile phones. […]

  • Regular expression of matching price in JavaScript


    Copy codeThe code is as follows: /^(d*.d{0,2}|d+).*$/ The test code given by hansir is as follows: Copy codeThe code is as follows: <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> <html xmlns=”http://www.w3.org/1999/xhtml”> <head> <meta http-equiv=”Content-Type” content=”text/html; charset=gb2312″ /> < title > Untitled Document<script type=”text/javascript”> function checkPrice(me){ if(!(/^(?:d+|d+.d{0,2})$/.test(me.value))){ me.value = me.value.replace(/^(d*.d{0,2}|d+).*$/,’$1′); } } </script> </head> <body> […]

  • Vue2 + elementui form association verification


    Recently, the project has a form linkage verification requirementAs shown in the figure above, the form must satisfy the requirement that the Commission cannot be greater than the priceFirst write the rules of validation function and data let validatePrice = (rule, value, callback) => { if (!value) { Callback (new error (‘Please enter the price […]

  • Koa2 develops WeChat official account: pushing the latest currency message on a regular basis.


    Background: bitcoin’s good segwit2x bifurcation ends up with no branching, but it’s not enough. So, bit cash wants to usurp it. It has risen 10 times in a week. The regret of missing the express is intended to write a WeChat official account that can push the latest news on a regular basis. Since we […]

  • Python Beginners – product discounts


    x = int(input(“x=”)) If x < 1600: ා if x is less than 1600, y is equal to 0 Y = 0 ා no discount Print (“payable:” X – (x * y)) ා y equals the discount price, which should be the total price minus the discount amount elif 1600 <= x < 2400:# Y […]

  • Best practice project for Python beginners


    Author: XiaoyuThe official account of WeChat:Python Data ScienceZhihu:Python Data Analyst Many friends have asked me if there is any good project to practice after learning python. In fact, the project is mainly based on the needs. But for a beginner, many complex projects can not be completed independently, so the blogger selected a project that […]

  • Use chainlink Oracle to develop a defi project in 10 minutes


    Chainlink price reference data contractIt is a reference point on the chain of real price data that can be relied on in the smart contract network. These contracts are regularly updated by multiple chainlink nodes, providing high-precision, high-frequency, and customizable price reference data of defi, which can easily provide stable infrastructure for the development of […]

  • Building quantitative system | ex right and restoration of stock data


    In the market software, we often see the option of ex right and restoration right. We choose different options, and the stock price on the software will be converted accordingly. In quantitative trading, we have developed a trading strategy. We need to backtest the strategy on historical market data. Which form of market data should […]