Write efficient scripts in Go

Using Go language to write efficient scripts can significantly improve automation performance. The following steps can guide you to use Go language to create efficient scripts: Install the Go language environment; use Go language to write code: package mainimport ("fmt")func main() { fmt.Println("Hello, world!")} 3. Construct actual cases: convert Markdown files to HTML; optimize script performance: use Go language concurrency to improve execution speed.

Writing Efficient Scripts in Go

As the demand for automated tasks continues to grow, use efficient programming languages ​​​​such as Go to write scripts become crucial. The Go language is known for its compilation, concurrency, and powerful standard library, making it ideal for creating scripts that execute quickly and with high reliability.

Create Go script

To create a Go script, you need:

1. Install the Go language environment: https://go.dev /doc/install
2. Create a .go file, for example script.go
3. Write Go code in this file

Go script example

The following is a simple Go script that can be printed to the console:

package main

import "fmt"

func main() {
    fmt.Println("Hello, world!")
}

Practical case: File converter

Now, let us create a practical case showing how to write a converter that converts Markdown files to HTML files using the Go language:

package main

import (
    "fmt"
    "log"
    "os"

    "github.com/russross/blackfriday/v2"
)

func main() {
    // 获取命令行参数（包含 Markdown 文件路径）
    if len(os.Args) != 2 {
        log.Fatal("需提供 Markdown 文件路径")
    }
    markdownFile := os.Args[1]

    // 读取 Markdown 文件
    markdownBytes, err := os.ReadFile(markdownFile)
    if err != nil {
        log.Fatal(err)
    }

    // 将 Markdown 转换为 HTML
    htmlBytes := blackfriday.Run(markdownBytes)

    // 输出 HTML 到标准输出
    fmt.Println(string(htmlBytes))
}

The script receives the Markdown file through the command line path, use the blackfriday library to convert Markdown to HTML, and then print the result to the console.

Improve script performance

To improve script performance, you can use functions such as concurrency and goroutine in the Go language to execute tasks in parallel. For example, in the above script, we can use the ioutil.ReadDir function to read multiple Markdown files in parallel.

By using the powerful features of the Go language, you can write efficient scripts to automate tasks and improve work efficiency.

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