public static List<string> JieWordByLen(this string word,int len) { var arr = new List<string>(); var ss = word.ToCharArray(); var st = ""; for (var i = 0; i < ss.Length; i = i + 1) { if (st.Length < len) st += ss[i]; else { arr.Add(st); st = ""; } } return arr; }
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