golang1.16开始原生支持文件嵌入

先贴一段官方介绍

Core library

Embedded Files

The new embed package provides access to files embedded in the program during compilation using the new //go:embed directive.

The go command now supports including static files and file trees as part of the final executable, using the new //go:embed directive. See the documentation for the new embed package for details.

大概的意思就是说，现在我们的核心库embed支持将静态文件打包啦，具体的你们可以看看包里面的说明

包里面乱七八糟的说明也没必要看，直接看例子

// Embedding one file into a string:
//
//	import _ "embed"
//
//	//go:embed hello.txt
//	var s string
//	print(s)
//
// Embedding one file into a slice of bytes:
//
//	import _ "embed"
//
//	//go:embed hello.txt
//	var b []byte
//	print(string(b))
//
// Embedded one or more files into a file system:
//
//	import "embed"
//
//	//go:embed hello.txt
//	var f embed.FS
//	data, _ := f.ReadFile("hello.txt")
//	print(string(data))

// import "embed"
// content holds our static web server content.
//go:embed image/* template/*
//go:embed html/index.html
// var content embed.FS

看着挺骚的，可以直接注入到字节，字符串，embed.FS中，还可以批量关联文件夹文件，测试一下

Last modified on 2021-02-18