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Rubyã§æ¥ä»ã®æ±ãæ¹ãããããªã æ¥ä»ãæ±ãã¯ã©ã¹ãå¤ããã¦ã©ãã使ãã°è¯ããããããªã æ¥ä»ã®è¨ç®æ¹æ³ãããããªã æ¥ä»ãæå»ã®æä½ã¯ããã°ã©ãã³ã°ãããä¸ã§å¿ é ã®ç¥èã«ãªã£ã¦ãã¾ãããããRubyã§æ¥ä»ãæå»ãæ±ãã¨ãªãã¨ãä¸è¨ã®ãããªçåãã§ã¦ããã®ã§ã¯ãªãã§ããããï¼ ããã§ãã®è¨äºã§ã¯rubyã®æ¥ä»ãæå»ã®æ±ãæ¹ã«ã¤ãã¦ãåºæ¬ããå¿ç¨çãªä½¿ãæ¹ã¾ã§è§£èª¬ãã¦ããã¾ãã Rubyæ¥ä»ãæ±ãããã®ã¯ã©ã¹ Rubyã§æ¥ä»ãæ±ãã¯ã©ã¹ã¯ã以ä¸ã®3ã¤ãããã¾ãã Dateã¯ã©ã¹ DateTimeã¯ã©ã¹ Timeã¯ã©ã¹ ããã§ã¯ãããããã®ä½¿ãæ¹ãè¦ã¦ããã¾ãããã Dateã¯ã©ã¹ Dateã¯æ¥ä»ãæ±ããã¨ãã§ããã¯ã©ã¹ã§ãæå»ãæ±ããã¨ã¯ã§ãã¾ããã require "date" puts date = Date.today # 2019-06-26 puts date.year # 20
Perlã§æ¥ä»ã»æéãæä½ - DateTime ã¢ã¸ã¥ã¼ã«ã®ä½¿ãæ¹ http://iandeth.dyndns.org/mt/ian/archives/000619.html ã®ãããªãã¨ãRubyã§ããæ¹æ³ã調ã¹ã¦ã¿ã¾ããã åºæ¬ ç¾å¨æ¥æã®ã¤ã³ã¹ã¿ã³ã¹ãä½ã Time.new #=> Mon Jun 05 20:03:59 JST 2006 Time.now #=> Mon Jun 05 19:47:04 JST 2006Rubyã®å ´åã¯ããã©ã«ãã§ãã¼ã«ã«ã®ã¿ã¤ã ã¾ã¼ã³ã®ã¤ã³ã¹ã¿ã³ã¹ãä½ãã¾ããnewã¨nowã®éãã¯initializeãå¼ã¶ãå¼ã°ãªããã ããã§ãã initializeãåå®ç¾©ã¨ãããªãéããã¾ãé¢ä¿ãªãããï¼ ä»»æã®æ¥æã®ã¤ã³ã¹ã¿ã³ã¹ãä½ã Time.mktime 2006, 6, 2, 16, 30, 50 #=> Fri Jun 02 16:30:50 JS
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? 2021.2.11追è¨ï¼DateTimeã¯ã©ã¹ã¯éæ¨å¥¨ãªã¯ã©ã¹ã«ãªãã¾ãã DateTimeã¯ã©ã¹ã¯éæ¨å¥¨ãªã¯ã©ã¹ã¨ãªããDateTimeã¯ã©ã¹ã§ã¯ãªãTimeã¯ã©ã¹ã使ããããå ¬å¼ã«ã¢ãã¦ã³ã¹ããã¾ããã åè1 But we consider use of DateTime should be discouraged. - matz (Yukihiro Matsumoto) https://bugs.ruby-lang.org/issues/15712#note-4 åè2 DateTime 㯠deprecated ã¨ããã¦ããã
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