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アドベントカレンダー10日目。
csvファイルの扱いについてです。

以下のCSVファイルを用意しておきます。

cat app/day10/sample.csv
Name,Age,City
Alice,25,New York
Bob,30,Los Angeles
Charlie,35,Chicago

読み取り

package main

import (
	"encoding/csv"
	"fmt"
	"os"
)

func main() {
	file, err := os.Open("app/day10/sample.csv")
	if err != nil {
		return
	}
	defer file.Close()

	r := csv.NewReader(file)
	for {
		record, err := r.Read()
		if err != nil {
			return
		}
		fmt.Println(record)
	}
}
$ go run app/day10/main.go
[Name Age City]
[Alice 25 New York]
[Bob 30 Los Angeles]
[Charlie 35 Chicago]

思ったより短い記述で読み取りができました。
リストとして出力されています。

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