Goで別のファイルの関数をmainで使いたいのに使えない。 Gomain.go cannot find package "helper" in any of: usr/local/go/src/helper (from $GOROOT) Users/name/Documents/Go/src/helper (from $GOPATH) //Documents/Go/src/leetcode package main import ( "helper" ) func main() { helper.Reverse() } //Documents/Go/src/leetcode/helper package helper import ( "fmt" ) //Reverse prints hello func Reverse() { fmt.Println("hello") } helpersrunmain.go GOPATHTerminalecho $GOPATH Users/name/Documents/Go

import `$GOPATH/src/leetcode/helper`


import "leetcode/helper"