GoFmt command: Code formatting tool to keep the code clean and beautiful

The GoFmt command is a code formatting tool that automatically formats Go source code to conform to the conventions of the Go language style guide, thereby improving the readability, consistency, and beauty of the code. Usage: Enter gofmt source_files.go in the terminal. Advanced options include: use -w to write formatted code to the source file; use -d to display only the changes to be made; use -e to report unformatted files.

GoFmt command: code formatting tool to keep the code clean and beautiful

Introduction

gofmt is a code formatting tool built into the Go language. It can automatically format Go source code to make it comply with the conventions of the Go language style guide. Using gofmt can make your code cleaner and more beautiful, improve readability, and ensure code consistency in different environments.

How to use

gofmt is very simple to use, just enter the following command in the terminal:

gofmt source_files.go

Where, source_files.go is the Go source code file to be formatted.

Practical case

The following is an example showing how gofmt formats the code:

package main

import "fmt"

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

Unformatted:

package mainimport "fmt"

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

After formatting:

package main

import "fmt"

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

As you can see, gofmt adds the correct line breaks, indentation, and brackets, making the code easier to read and understand.

Advanced Usage

gofmt Some advanced options are also provided for more fine-grained control:

• -w: Write the formatted code to the source file instead of outputting it to standard output.
• -d: Only displays the changes to be made without modifying the file.
• -e: Report unformatted files.

Conclusion

gofmt is an important tool for maintaining clean and beautiful Go code. It can automatically format code to comply with the Go language style guide, improving code readability and consistency. Use gofmt in your Go projects to ensure your code always looks its best.

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