å¹´æã®ç¯å²ãDateã¯ã©ã¹ã§æ±ãã®ããã«ã... 2023å¹´1æã2023å¹´2æ...ã¨æåä½ã®ã©ãã«ãæã¤ã°ã©ããä½ã 2023å¹´1æå·ã2023å¹´2æå·...ã¨æåä½ã§æä¾ãããéèªãæ±ã ã¨ãã£ããå¹´æãæ±ãã±ã¼ã¹ã§ã¯ããã ã®Dateã¯ã©ã¹ã§ã¯ã¡ãã£ã¨å½¹ä¸è¶³ã§ããããä¾ãã°ä»¥ä¸ã®ãããªã³ã¼ããèãã¦ã¿ã¾ãã require 'date' start_year_month = Date.new(2023, 9, 1) today = Date.today latest_year_month = Date.new(today.year, today.month, 1) # # æéã§ã«ã¼ããããã¨ã # tmp_month = start_year_month while tmp_month <= latest_year_month pp tmp_month.strftime('%Y%m
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