â Perlåºç¤ææ³æéãã¹ã¿ã¼ãã ããããã®ã¾ã¾ãRubyã«ç½®ãæãã¦ã¿ã¾ããã ä»ã®è¨èªãããç¨åº¦ç¥ã£ã¦ãã人ã¯ãããèªãã°Rubyã®åºç¤ããã¹ã¿ã¼ãã¦Rubyãæ¸ããã¨ãã§ããããã«ãªãâ¦ããç¥ãã¾ãããç¡ä¿è¨¼ã§ãã åèï¼ ãªãã¸ã§ã¯ãæåã¹ã¯ãªããè¨èª Ruby ãªãã¡ã¬ã³ã¹ããã¥ã¢ã« (1.9.2) ãªãã¸ã§ã¯ãæåã¹ã¯ãªããè¨èª Ruby ãªãã¡ã¬ã³ã¹ããã¥ã¢ã« (1.8.7) â 1. åºç¤ ã¤ã³ã¿ã©ã¯ãã£ãRuby (irb) irbã使ãã¨ãRubyã®ããã°ã©ã ãç°¡åã«ç·´ç¿ãããã¨ãã§ãã¾ãã /Users/yhara $ irb irb(main):001:0> puts "hello" hello => nil irb(main):002:0> 1 + 1 => 2 以ä¸ã®èª¬æã¯ãirbãèµ·åãã¦ãèªåã§è©¦ããªããèªãã¨ç¿å¾ãæ©ãã¨æãã¾ãã 表示 (print,
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