Course Introduction：1. Use modules in the Python standard library to efficiently implement common data structures and algorithms. 2. The collections module provides such as deque for queues and stacks, counter for frequency statistics, and defaultdict for convenient grouping. 3. The heapq module can be used to implement heap structure and is suitable for priority queues and sorting tasks. 4. The bisect module supports efficient search and insertion operations, which is suitable for maintaining ordered lists. These tools not only improve code efficiency, but also reduce the possibility of errors.
2025-06-26 comment 0 541
Course Introduction：Asynchronous JavaScript module refers to modules loaded in a non-blocking manner. They are loaded on demand through dynamic import (Dynamic Import), thereby improving application performance. 1. The asynchronous module adopts the import('module-path') syntax, returns the Promise, allowing the module to be loaded on demand during runtime; 2. It is suitable for functions, conditional loading, lazy loading and other scenarios triggered by user operations, such as loading the image editing module after clicking the button; 3. Pay attention to loading timing, error handling, cache mechanism and packaging tool support when using it; 4. Best practices include dynamic import of non-core functions, cooperating with loading prompts, avoiding duplicate loading, and can multiplex logic through encapsulation loader.
2025-07-17 comment 0 480
Course Introduction：Yes, PhpStorm can be used for Java project development. 1) Configure JDK: File->ProjectStructure->SDKs->AddNewSDK->JDK, select the JDK path. 2) Create a Java module: File->New->Module->Java, select the Java version. 3) PhpStorm provides syntax highlighting and code prompts, but its Java support is not as perfect as IntelliJIDEA, and the interface and shortcut keys are more suitable for PHP developers.
2025-05-20 comment 0 1186
Course Introduction：Modules are better than headerfiles because they solve problems such as duplicate inclusion, slow compilation speed, and macro pollution. 1.Modules adopts a mechanism of compiling once and importing multiple times, avoiding the problem of re-parsing header files every time they are compiled, improving construction efficiency; 2. The modules are naturally isolated from interfaces and implementations, reducing naming conflicts and unnecessary symbol exposure. Writing a simple module requires an interface unit and an implementation unit: 1. The interface unit starts with exportmodulename; and exports the declaration; 2. The implementation unit starts with modulename; and contains specific implementation code. Note when using modules: 1. The module interface must be compiled before the code that references it; 2.
2025-07-14 comment 0 592
Course Introduction：This article presents an approach to counting and sorting words by frequency in a given list. It discusses the use of a Counter class from the Python collections module to easily track word frequencies. The article also demonstrates how to sort the w
2024-10-21 comment 0 1025
Course Elementary 13795
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82320
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13157
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24603
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27463
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
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