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implements hello world refs #2
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@euledge
euledge committed Feb 5, 2019
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fn main() {
println!("Hello World!");
}

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@euledge euledge commented on bdfd91e Feb 5, 2019

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fn main() fnはfunctionの略
main()関数が必要なのは C,C++と同じでこれがEntryPoint

println!は 関数じゃなくてマクロだって、マクロってなんじゃ？

まあ大体 C、C++と同じと思ってよさげ

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