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How to export Excel file and set column width in native PHP?

How to export Excel file and set column width in native PHP?

When exporting Excel files using native PHP, you often encounter the problem of how to set the column width. This article will focus on "How to export Excel files in native PHP and...

Mar 31, 2025 pm 11:18 PM
支付宝 office
Beyond the Basics: Building Robust XML/RSS Applications with [Specific Library/Framework]

Beyond the Basics: Building Robust XML/RSS Applications with [Specific Library/Framework]

Use [SpecificLibrary/Framework] to effectively parse, generate and optimize XML/RSS data. 1) Parses XML/RSS files or strings and extracts data. 2) Generate XML/RSS documents that comply with the standards. 3) Modify the existing XML/RSS structure. The library works through parsers and generators, supports streaming parsing, and is suitable for large file processing.

Mar 31, 2025 pm 04:10 PM
rss xml
.NET Deep Dive: Mastering Asynchronous Programming, LINQ, and EF Core

.NET Deep Dive: Mastering Asynchronous Programming, LINQ, and EF Core

The core concepts of .NET asynchronous programming, LINQ and EFCore are: 1. Asynchronous programming improves application responsiveness through async and await; 2. LINQ simplifies data query through unified syntax; 3. EFCore simplifies database operations through ORM.

Mar 31, 2025 pm 04:07 PM
.NET框架 .NET异步编程
C for Embedded Systems: Programming Real-Time and Resource-Constrained Devices

C for Embedded Systems: Programming Real-Time and Resource-Constrained Devices

C was chosen to develop embedded systems because of their efficient performance, close to hardware control capabilities and rich programming characteristics. 1) C provides manual memory management, suitable for environments with limited resources; 2) supports multi-threaded programming to ensure real-time response; 3) allows direct operation of hardware registers to achieve precise control.

Mar 31, 2025 pm 04:06 PM
C++ 嵌入式系统
How does Go support cross-compilation?

How does Go support cross-compilation?

Go supports cross-compilation via GOOS and GOARCH, enabling developers to build for various platforms from one environment, enhancing deployment and portability.

Mar 31, 2025 am 10:01 AM
Explain the concept of "reflection" in Go. When is it appropriate to use it, and what are the performance implications?

Explain the concept of "reflection" in Go. When is it appropriate to use it, and what are the performance implications?

The article discusses reflection in Go, its uses in generic programming, plugin systems, and metaprogramming, and its performance impacts like slower execution and increased memory use. It suggests minimizing reflection and using alternatives like in

Mar 31, 2025 am 10:00 AM
What are the trade-offs between using for...range and a traditional for loop in Go?

What are the trade-offs between using for...range and a traditional for loop in Go?

The article discusses trade-offs between for...range and traditional for loops in Go, focusing on readability, performance, flexibility, and safety. Traditional loops are better for large datasets and fine control, while for...range excels in simplic

Mar 31, 2025 am 09:59 AM
How does Go handle goroutine stack growth?

How does Go handle goroutine stack growth?

The article discusses Go's efficient goroutine stack growth, comparing it to traditional thread management. It explains the process, performance implications, and manual adjustments, highlighting Go's advantages in memory efficiency and scalability.(

Mar 31, 2025 am 09:58 AM
Explain the implementation of interfaces in Go.

Explain the implementation of interfaces in Go.

The article discusses implementing interfaces in Go, focusing on abstraction and polymorphism. It explains defining interfaces, their benefits, and provides a practical example using a Rectangle struct.

Mar 31, 2025 am 09:57 AM
What are the different types of channels in Go (unbuffered, buffered)? How do they work?

What are the different types of channels in Go (unbuffered, buffered)? How do they work?

The article discusses unbuffered and buffered channels in Go, their functionality, and practical applications. It compares their performance and provides guidance on choosing between them based on synchronization needs, performance, and resource mana

Mar 31, 2025 am 09:56 AM
Explain the concept of "escape analysis" in Go and how it affects performance.

Explain the concept of "escape analysis" in Go and how it affects performance.

The article discusses escape analysis in Go, which optimizes memory allocation by deciding whether variables should be placed on the stack or heap, impacting performance. Techniques to enhance this process and scenarios where it might degrade perform

Mar 31, 2025 am 09:55 AM
How does Go's scheduler work?

How does Go's scheduler work?

The article explains Go's scheduler, focusing on its components (M, P, G) and mechanisms like work stealing and preemption for efficient goroutine management.Character count: 159

Mar 31, 2025 am 09:54 AM
Describe the implementation of maps in Go.

Describe the implementation of maps in Go.

Go maps use hash tables for efficient key-value storage. Main issues include performance impacts from resizing and concurrency challenges.

Mar 31, 2025 am 09:53 AM
Explain the memory layout of a slice in Go.

Explain the memory layout of a slice in Go.

The article explains the memory layout of Go slices, detailing components like pointer, length, and capacity, and discusses their impact on performance and memory allocation.Character count: 159

Mar 31, 2025 am 09:52 AM
What are some common architectural patterns used with Go (e.g., Clean Architecture)?

What are some common architectural patterns used with Go (e.g., Clean Architecture)?

The article discusses common architectural patterns in Go, focusing on Clean Architecture's benefits like modularity and testability, and provides implementation steps and case studies.

Mar 31, 2025 am 09:49 AM

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