public static bool IsChineseNumeral(char ch) { if (NumeralUtil.IsArabicNumeral(ch)) { return(false); } if (CharacterUtil.IsLantingLetter(ch)) { return(false); } for (int j = 0; j < chnGenText.Length; j++) { if (ch == chnGenText[j] || ch == chnRMBText[j] || ch == chnFullCharText[j]) { return(true); } } return(false); }