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/// <summary> /// 判断是否是非法字符 /// </summary> /// <param name="str">判断是字符</param> /// <returns></returns> public static Boolean isLegalNumber(string str) { char[] charStr = str.ToLower().ToCharArray(); for (int i = 0; i < charStr.Length; i++) { int num = Convert.ToInt32(charStr[i]); if (!(IsChineseLetter(num)|| (num >= 48 && num <= 57) || (num >= 97 && num <= 123) || (num >= 65 && num <= 90) || num == 45)) { return false; } } return true; } /// <summary> /// 判断字符的Unicode值是否是汉字 /// </summary> /// <param name="code">字符的Unicode</param> /// <returns></returns> protected static bool IsChineseLetter(int code) { int chfrom = Convert.ToInt32("4e00", 16); //范围(0x4e00~0x9fff)转换成int(chfrom~chend) int chend = Convert.ToInt32("9fff", 16); if (code >= chfrom && code <= chend) { return true; //当code在中文范围内返回true } else { return false; //当code不在中文范围内返回false } return false; }
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