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GolangのインストールからHelloWorldまで

Last updated at Posted at 2018-09-07

公式からパッケージをインストール

インストールされたことを確認

$ go version

HelloWorld

下記のファイルを作成

helloworld.go
package main

import "fmt"

func main() {
  fmt.Printf("hello, world\n")
}

実行

$ go run helloworld.go
hello, world

ビルドして実行

$ go build helloworld.go
$ ./helloworld
hello, world
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