FileStream FS = new FileStream(@"e:\test.txt",FileMode.Open,FileAccess.Read);
            StreamReader SR = new StreamReader(FS,System.Text.Encoding.Default);
            
            string text = SR.ReadToEnd();
            
            byte[] bytes = System.Text.Encoding.GetEncoding("gb2312").GetBytes(text);
            
            Console.WriteLine(text);
            for(int i=0;i<text.Length;i++)
            {
                if( ((int)text[i]<0xFA29) && ((int)text[i]>0x4E00) )
                {
                    continue;
                }
                else
                {
                    if( text[i]=='/')
                    {
                        Console.Write("It is '/'");
                    }
                }
            }