package main
import (
"regexp"
"fmt"
)
func main() {
//var re = regexp.MustCompile(`^[0-9]{8,12}$`)
//var str = `12345678901`
re := regexp.MustCompile(`^[0-9]{8,12}$`)
fmt.Println(re.Match([]byte(`12345678901`)))
fmt.Println(re.Match([]byte(`something else`)))
fmt.Println(re.Match([]byte(`123456789`)))
}
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