import (_ "embed")
实际上接受嵌入文件数据的变量也可以是string和[]byte的类型别名或基于他们定义的新类型,例如下面的代码那样:
type StringAlias = string //go:embed a.txt var text1 StringAlias type NewBytes []byte //go:embed b.txt var text2 NewBytes
[]bytestring
package main import ( "fmt" _ "embed" ) //go:embed macbeth.txt var macbeth string //go:embed texts/en.txt var hello string func main() { fmt.Println(len(macbeth)) // 麦克白的总字符数 fmt.Println(hello) // Output: Hello, world }
再来看看二进制文件的例子,embed_img.go如下所示:
package main import ( "fmt" _ "embed" ) //go:embed imgs/screenrecord.gif var gif []byte //go:embed imgs/png/a.png var png []byte func main() { fmt.Println("gif size:", len(gif)) // gif size: 81100466 fmt.Println("png size:", len(png)) // png size: 4958264 }