/// <summary>

 /// 删除字符串中的中文

 /// </summary>

 public static string Delete中文(string str)

 {

     string retValue = str;

     if (System.Text.RegularExpressions.Regex.IsMatch(str, @"[\u4e00-\u9fa5]"))

     {

         retValue = string.Empty;

         var strsStrings = str.ToCharArray();

         for (int index = ; index < strsStrings.Length; index++)

         {

             if (strsStrings[index] >= 0x4e00 && strsStrings[index] <= 0x9fa5)

             {

                 continue;

             }

             retValue += strsStrings[index];

         }

     }

     return retValue;

 }