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Categories / C# / Internationalization

 

Is Chinese Character

using System; using System.Collections.Generic; using System.Text; using System.Text.RegularExpressions; namespace Kenly.ChineseSegment.Core {     internal static class Utility     {         /// <summary>         ///          /// </summary>         /// <param name="filePath"></param>         /// <returns></returns>         public static bool IsValidFile(string filePath)         {             if (string.IsNullOrEmpty(filePath))             {                 return false;             }             if (!System.IO.File.Exists(filePath))             {                 return false;             }             return true;         }         /// <summary>         ///          /// </summary>         /// <param name="text"></param>         /// <returns></returns>         public static bool IsChinese(string text)         {             string regExpression = "[\u4e00-\u9fa5]";             return Regex.IsMatch(text, regExpression);         }         /// <summary>         ///          /// </summary>         /// <param name="text"></param>         /// <returns></returns>         public static bool IsLetter(string text)         {             string regExpression = "[a-z|A-Z]";             return Regex.IsMatch(text, regExpression);         }         /// <summary>         ///          /// </summary>         /// <param name="text"></param>         /// <returns></returns>         public static bool IsNumber(string text)         {             string regExpression = "[0-9]";             return Regex.IsMatch(text, regExpression);         }     } }