ã~ã 確ãã«ã¤ãã¬ã¼ã¿ã¯è¦ããã便å©ããç¥ããªãã ã¨æããªãããä½æ ã«ãããã§è¦ããµã³ãã«ã¯ã¤ãã¬ã¼ã¿ã®ãã¤ã³ãã§ããå¦çã®ä¸æ(å¾ ã¡)ãå ¥ããªãã®ã ããï¼ ãããªããã°ã©ã èµ°ããã¦ãåãªãå復å¦çã¨å¤ãããªããããªããï¼ ã¨ãæããªãããã¤ãã¬ã¼ã¿ã®ãµã³ãã«æ¸ãã¦ã¿ãã èªåã§ãã¼ãã«ä¸ãã¦ãããã«ã¯å¤§ãããã®ã§ã¯ãªãããæè¬ã³ã«ã¼ãã³çãªåãã«ãªã£ã¦ããã¨æããã ã¨ããããã³ã¼ããã static IEnumerable IteratorFunc(string s) { for(int i = 0 ; i < s.Length; i++) { yield return s[i]; } } static void Main(string[] args) { foreach (char c in IteratorFunc("abc")) { Console.WriteLine("Ke
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