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ランダム文字列

More than 1 year has passed since last update.

メモ。下記でできる。SEEDを設定しないと同じ文字列しか返ってこない。

package main

import (
    "fmt"
    "math/rand"
    "time"
)

func init() {
    rand.Seed(time.Now().UnixNano())
}
func main() {
    fmt.Println(generate())
}

func generate(length int) string {
    const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    b := make([]byte, length)
    for i := range b {
        b[i] = letterBytes[rand.Intn(len(letterBytes))]
    }
    return string(b)
}

t-fuku
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