開発環境
- macOS Mojave - Apple (OS)
- Emacs (Text Editor)
- Windows 10 Pro (OS)
- Visual Studio Code (Text Editor)
- Go (プログラミング言語)
Head First Go (Jay McGavren(著)、O'Reilly Media)のChapter 9(you're my type - Defined Types)、Pool Puzzle(270)の解答を求めてみる。
コード
package main import "fmt" type Population int func main() { var population Population population = Population(572) fmt.Println("Sleepy Creek Country population:", population) fmt.Println("Congratulations, Kevin and Anna! It's a girl!") population += 1 fmt.Println("Sleepy Creek Country population:", population) }
入出力結果(Bash、cmd.exe(コマンドプロンプト)、Terminal)
$ go run sample1.go Sleepy Creek Country population: 572 Congratulations, Kevin and Anna! It's a girl! Sleepy Creek Country population: 573 $
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