Golang如何將punycode轉換爲unicode？

Question

我想轉換網址FE：

xn--h1aaebtrh5b.xn--p1ai --> кисточки.рф

當然和反向：

kremlin.ru ---> xn--d1abbgf6aiiy.xn--p1ai

我嘗試使用IDNA包，但我無法導入供應商包IDNA

Link上doc： https://godoc.org/golang.org/x/net/idna#Profile.ToUnicode

嘗試導入：

import "golang_org/x/net/idna" 

得到錯誤：

main.go:18:8: cannot find package "golang_org/x/net/idna" in any of: 
    /usr/local/go/src/golang_org/x/net/idna (from $GOROOT) 
    /home/arseny/go/src/golang_org/x/net/idna (from $GOPATH) 

闖闖：

import "vendor/golang_org/x/net/idna" 

錯誤：

main.go:18:8: must be imported as golang_org/x/net/idna 

main.go:19:2: use of vendored package not allowed 

Answer 1

有人說，此代碼的工作

在bash：

go get golang.org/x/net/idna 

示例代碼去：

package main 

import (
    "fmt" 
    "golang.org/x/net/idna" 
) 

var p *idna.Profile 

func main() { 
    // Raw Punycode has no restrictions and does no mappings. 
    p = idna.New() 
    fmt.Println(p.ToUnicode("xn--d1abbgf6aiiy.xn--p1ai")) 
} 

但我仍然希望，另一種方式存在。我不同於將本地副本包裝到$ GOROOT路徑中。