Tag:Example

  • Jsp + servlet implementation: financial product information management system

    Time:2020-2-22

    1、 Receive business and make analysis 1. General business requirements 1.1 use JSP + Servlet to realize the financial product information management system, and MySQL 5.5 as the background database to realize the function of viewing and increasing financial management 1.2 rendering of query page 1.3 add new information page renderings 2. Query page requirements […]

  • Leetcode 771: jewels and stones

    Time:2020-2-22

    Title: Given stringJRepresents the type of gem in the stone, and the stringSRepresents the stone you have.SEach character in represents a type of stone you own, and you want to know how many of the stones you own are gemstones. You’re given strings J representing the types of stones that are jewels, and S representing […]

  • JS using cookies

    Time:2020-2-21

    Original address: http://www.maoyupeng.com/use-cookie-on-javascript.html On the storage of Chinese characters in cookies During the use of JS, if the stored data is in Chinese, you may encounter compatibility problems. Let me first talk about the problems I have encountered (don’t worry, a complete code case will be provided later): stayAndroidI use wechat to open my test […]

  • Go concurrent programming

    Time:2020-2-21

    Catalog Summary Parallel and concurrent Common concurrent programming techniques Concurrent process Thread concurrent Association concurrent Go concurrent goroutine What is goroutine The creation of goroutine Goroutine feature Runtime package channel Defining channel variables Unbuffered channel Buffered channel Close channel One way channel Channel summary timer select lock deadlock mutex Read write lock sync.WaitGroup sync.Once sync.Map […]

  • Talk about multithreading Part 5: deep analysis of async.await

    Time:2020-2-21

    Hello task, let’s meet again!! Do you think you are familiar with the opening words? Haha, you are right. It means that you have read the first four articles on task summarized by me. Thank you for your support! It doesn’t matter what I don’t feel familiar with. At the end of the article, I […]

  • Learning records of mongodb master class (day 14)

    Time:2020-2-20

    Fourteenth days Today we are going to learn chapters 14, 15, 16 and 17. Compared with the traditional model design method, the author summarizes his own experience to explain how mongodb carries out model design, and gives an example of bucket model. Comparison of relationship model and document model Traditionally, because mongodb organizes data through […]

  • Code dependency management in PHP

    Time:2020-2-20

    The article was forwarded from the professional laravel developer community. Original link: https://learnku.com/laravel/t When you create an application or library for PHP, there are usually three types of dependencies: Hard dependency: your application / library needs this dependency to function properly Optional dependencies: for example, a PHP library can provide a function for different frameworks […]

  • Angular 4.x Template-Driven Forms

    Time:2020-2-20

    There are two forms in angular 4. X: Template driven forms – template driven forms (similar to the forms in angularjs 1. X) Reactive forms – reactive forms This article mainly introduces template driven forms, which will coverngForm、ngModel、ngModelGroup, form submission event, form validation and exception information output. Contents ngModule and template-driven forms Binding ngForm and […]

  • [brush leetcode together] zigzag transformation

    Time:2020-2-20

    Title Description A given string is Z-shaped from top to bottom, left to right, according to the given number of lines. For example, when the input string is “leetcodeiishing” and the number of lines is 3, the arrangement is as follows: After that, your output needs to be read line by line from left to […]

  • JWT realizes authorization authentication

    Time:2020-2-20

    Catalog 1、 What is JWT 2、 JWT Standard Specification 3、 Analysis of core code 4、 Login authorization example 5、 JWT usage 6、 JWT considerations 1、 What is JWT JSON Web Token(JWT) is the most popular cross domain authentication solution.In short, OAuth is a kind of authorization mechanism. The owner of the data told the system […]

  • 【tf.keras】tensorflow datasets,tfds

    Time:2020-2-20

    Some of the most commonly used data sets, such as MNIST, fashion MNIST and cifar10 / 100, can be found in tf.keras.datasets, but for other commonly used data sets, such as svhn, caltech101 and tf.keras.datasets, we can find them in tensorflow datasets. List of datasets included in tensorflow: https://www.tensorflow.org/datasets/catalog/overview ා all # datasets Tensorflow? Datasets […]

  • Add feature flag to your asp.net core program

    Time:2020-2-20

    Preface As we know, most of the current applications will experience many different test environments before they are officially released to the production environment. By letting the applications run in many different environments, we can find and solve problems in time to avoid unnecessary losses on the line. This is for the whole software release […]