rin1024 https://blog.hatena.ne.jp/rin1024/ uncertain world https://rin1024.hatenadiary.org/ Perl 学校の演習室でSystem.out.printfが使えなかったときに考えたのをperlで書いた for my $i(1..9){ for my $j(1..9) { print map { " " } (0..(2 - int(log($i*$j)/log(10)))); print $i*$j, ":"; } print $/; } 実行結果 [root@localhost ~]# perl -e 'for my $i(1..9){ for my $j(1..9) { print map { " " } (0..(2 - int(log($i*$j)/log(10)))); print $i… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Frin1024.hatenadiary.org%2Fentry%2F20091001%2F1254360136" title="printfが使えないとき(そんな事ホトンドないだろうけど) - uncertain world" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2009-10-01 10:22:16 rich https://rin1024.hatenadiary.org/entry/20091001/1254360136 1.0 100%