Programmer Group

  introduction         Command mode is a common mode in game development. If you only look at GoF's definition of this pattern, you will feel obscure and confused. My simple understanding of the command pattern is an object-oriented method call. We encapsulate a request method and save the required state of the reques ...

Title requirements: 1 And implement a small arithmetic game CAI Software systems that require friendly interface design (good people) Computer interaction), easy to operate, helps pupils perform four arithmetic operations of one digit (primary) or two digits (advanced). 2 , the main interface gives the rules of the game, p ...

1, HTTP protocol Plaintext No built-in confidentiality security mechanism Sniffing or proxy truncation can view all plaintext information https can only improve transport layer security Stateless Each communication between client and server is an independent process WEB applications need to track client sessions (multi-step comm ...

background Service deployment and jump are shown as follows: The user requests to load the specified application through Alibaba cloud through http. The application returns the jump path (status 302), but the jump path is http (not https), so it cannot be accessed 2.1 jump pseudo code: // ModelAndView mv.setViewName(WebCst.REDIRECT + "/adm ...

Ranking statistics of Chinese Universities Based on MapReduce Overall thinking ① Fileinputformat reads data ② Mapper stage is simple for data processing ③ Serialization implements custom sorting ④ Partition partition processing ⑤ Reducer writes out data ⑥ Main class settings The specific implementation is as follows Driver main class, inclu ...

Java 8 Feature - Method References This article is translated from: Java 8 Method Reference Method References A new feature called method reference is provided in Java 8. Method references are used to reference other methods on a functional interface. It is a simpler form of Lambda expression. When you use Lambda expressions only to reference ...

Tips: Slide event: after clicking, slide this module. Common scenes: rotation chart sliding, article list up and down linkage, novel page turning, etc. Common actions of sliding events: Press, move and release   We learned the click, double click and long press events. Today we will learn a new knowledge point, sliding event, whi ...

Vue Componentization, virtualization dom, MVVM (features) Author of vue: you Yuxi (official website) Vue.js) Use of vue: vue features: What is a component? Encapsulate the code into a component that everyone can use Virtual dom is a virtual space (space for time) Ajax requests an array. How to put it in the array? Add one or more for loo ...

PPASR streaming and non streaming speech recognition The project will be divided into three stages: beginner ,Progressive class and Final stage Branch, which is currently the final level and continuously maintains the version. PPASR Chinese name PaddlePaddle Chinese speech recognition (PaddlePaddle Automatic Speech Recognition), is a PaddlePa ...

Pre knowledge Segment tree Segment tree is a binary search tree, which is similar to interval tree. It divides an interval into some unit intervals, and each unit interval corresponds to a leaf node in the segment tree. Using the segment tree, you can quickly find the number of occurrences of a node in several segments. The time complexity is \ ...