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go修行1日目 九九表

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ディレクトリを作る

mkdir $(ghq root)/github.com/vampire-yuta/99
cd $(ghq root)/github.com/vampire-yuta/99

main.goを作る


package main

import "fmt"

func main() {
    for i := 1; i <= 9; i++ {
        for n := 1; n <= 9; n++ {
            if i*n < 10 {
                fmt.Printf("  %d", i*n)
            } else {
                fmt.Printf(" %d", i*n)
            }
        }
        fmt.Println()
    }
}

ビルド

go build 99.go

実行

~/g/s/g/v/99 ❯❯❯ ./99
  1  2  3  4  5  6  7  8  9
  2  4  6  8 10 12 14 16 18
  3  6  9 12 15 18 21 24 27
  4  8 12 16 20 24 28 32 36
  5 10 15 20 25 30 35 40 45
  6 12 18 24 30 36 42 48 54
  7 14 21 28 35 42 49 56 63
  8 16 24 32 40 48 56 64 72
  9 18 27 36 45 54 63 72 81
~/g/s/g/v/99 ❯❯❯

参考

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