FileHandle vs Symbolperl ã§ã‚ªãƒ–ジェクト指å‘を目指ã—ã€use strictã—ãŸãƒ—ãƒã‚°ãƒ©ãƒ を徹底ã—ã¦ã„ãã¨ã€ã©ã†ã«ã‹ã—ãŸããªã‚‹ã®ãŒã€Œãƒ•ã‚¡ã‚¤ãƒ«ãƒãƒ³ãƒ‰ãƒ«ã€ã®å˜åœ¨ã§ã™ã€‚ open(FD, "test.txt"); close(FD); ã“ã® FD をオブジェクトã¨ã—ã¦ä½¿ã„関数ã«å¯¾ã—ã¦å¼•æ•°ã¨ã—ã¦ä¸ŽãˆãŸã‚Šã—ãŸã„ã®ã§ã™ãŒã€use strict ãªç’°å¢ƒã§ã¯ my $fh = 'FD'; open($fh, "test.txt"); close($fh); ã¨ã‚„ã£ã¦ã‚‚ã€ã‚¨ãƒ©ãƒ¼ã«ãªã£ã¦ã—ã¾ã„ã¾ã™ã€‚ã‹ã¨è¨€ã£ã¦ã“ã®ãŸã‚ã ã‘ã« no strict refs; ã¨ã‚‚ã—ãŸããªã„。ã¾ãŸã“ã®æ–¹æ³•ã§ã¯ã€Perlをマルãƒã‚¹ãƒ¬ãƒƒãƒ‰å‹•ä½œã•ã›ã‚‹ã¨ãã€ãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ã®åå‰ç©ºé–“ãŒè¡çªã—ã€ãƒ•ã‚¡ã‚¤ãƒ«ãŒé–‹ã‘ãªããªã‚‹å•é¡Œã‚‚ã‚ã‚Šã¾ã™ã€‚ ãƒãƒƒãƒˆã§æƒ…å ±ã‚’æ¼ã£ã¦ã„ã‚‹ã¨ã€ã“ã†ã„ã†ã¨ãã¯ãƒ•ã‚¡ã‚¤ãƒ«ãƒãƒ³ãƒ‰ãƒ«ã‚’動的生æˆã™ã‚‹æ–¹æ³•ãŒç´¹ä»‹ã•ã‚Œã¦ã„ã¾ã™ã€‚ use FileHan
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