PCQQ的编码进制转换大集，超实用[c#]

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电       在PCQQ的研究里，必不可少的一些函数，如果一个一个去查找资料或是自己写出来，恐怕会耽误进度。因此如果像现在这样，把他们都集中到一起是不是很不错呢。 [C#] 纯文本查看 复制代码 /// /// 十六进制字符串转换成字节数组 /// /// 十六进制字符串 /// public static byte [] HexStringToByteArray( string hexString) { hexString = hexString.Replace( " " , "" ).Replace( "\n" , "" ); if ((hexString.Length % 2) != 0) hexString += " " ; byte [] returnBytes = new byte [hexString.Length / 2]; for ( int i = 0; i < returnBytes.Length; i++) returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16); return returnBytes; /* HexStringToByte if (hex.Length == 0) { return new byte[] { 0 }; } if (hex.Length % 2 == 1) { hex = "0" + hex; } byte[] result = new byte[hex.Length / 2]; for (int i = 0; i < hex.Length / 2; i++) { result[i] = byte.Parse(hex.Substring(2 * i, 2), System.Globalization.NumberStyles.AllowHexSpecifier); } return result; */ } /// /// 将内容全部为16进制数字的字符串按照一定规律对齐 /// /// 要对齐的字符串 /// public static string TileHexString( string hexStr) { hexStr = hexStr.Replace( " " , "" ).Trim(); if (hexStr.Length % 2 == 1) hexStr = hexStr + " " ; StringBuilder sb = new StringBuilder(); for ( int i = 0; i < hexStr.Length; i++) { if (i % 2 == 0) sb.Append(hexStr.Substring(i, 2) + " " ); } return sb.ToString().Trim().ToUpper(); } public static string TileHexString( byte [] Byte, int Offset, int Length) { StringBuilder builder = new StringBuilder(); for ( int i = Offset; i < (Offset + Length); i++) { builder.AppendFormat( "{0:x2} " , Byte[i]); } return builder.ToString().ToUpper(); } public static string TileHexString( byte [] Byte) { return TileHexString(Byte,0,Byte.Length); } /// 一个随机产生的密钥字节数组 /// /// public static byte [] RandomKey() { byte [] key = new byte [16]; Random.NextBytes(key); return key; } /// 一个随机产生的密钥字节数组 /// /// public static byte [] RandomKey( int length) { byte [] key = new byte [length]; Random.NextBytes(key); return key; } #region GetString /// /// 根据某种编码方式将字节数组转换成字符串 /// /// 字节数组 /// encoding 编码方式 /// 如果encoding不支持，返回一个缺省编码的字符串 public static string GetString( byte [] b, string encoding) { try { return Encoding.GetEncoding(encoding).GetString(b); } catch { return Encoding.Default.GetString(b); } } /// /// 根据缺省编码将字节数组转换成字符串 /// /// 字节数组 /// 字符串 public static string GetString( byte [] b) { return GetString(b, "UTF-8" ); } /// /// * 从buf的当前位置解析出一个字符串，直到碰到了buf的结尾 /// * /// * 此方法不负责调整buf位置，调用之前务必使buf当前位置处于字符串开头。在读取完成 /// * 后，buf当前位置将位于buf最后之后 /// * /// * /// * 返回的字符串将使用QQ缺省编码，一般来说就是GBK编码 /// /// The buf. /// public static string GetString(Lingchen.Common.Utils.ByteBuffer buf) { ByteBuffer temp = new ByteBuffer(); while (buf.HasRemaining()) { temp.Put(buf.Get()); } return GetString(temp.ToByteArray()); } /// 从buf的当前位置解析出一个字符串，直到碰到了buf的结尾或者读取了len个byte之后停止 /// 此方法不负责调整buf位置，调用之前务必使buf当前位置处于字符串开头。在读取完成 /// * 后，buf当前位置将位于len字节之后或者最后之后 /// /// The b. /// public static string GetString(ByteBuffer buf, int len) { ByteBuffer temp = new ByteBuffer(); while (buf.HasRemaining() && len-- > 0) { temp.Put(buf.Get()); } return GetString(temp.ToByteArray()); } /// /// * 从buf的当前位置解析出一个字符串，直到碰到了delimit或者读取了maxLen个byte或者 /// * 碰到结尾之后停止 /// *此方法不负责调整buf位置，调用之前务必使buf当前位置处于字符串开头。在读取完成 /// *后，buf当前位置将位于maxLen之后 /// /// The buf. /// The delimit. /// The max len. /// public static String GetString(ByteBuffer buf, byte delimit, int maxLen) { ByteBuffer temp = new ByteBuffer(); while (buf.HasRemaining() && maxLen-- > 0) { byte b = buf.Get(); if (b == delimit) break ; else temp.Put(b); } while (buf.HasRemaining() && maxLen-- > 0) buf.Get(); return GetString(temp.ToByteArray()); } /// 根据某种编码方式将字节数组转换成字符串 /// /// The b. /// The offset. /// The len. /// The encoding. /// public static string GetString( byte [] b, int offset, int len) { byte [] temp = new byte [len]; Array.Copy(b, offset, temp, 0, len); return GetString(temp); } /// /// 从buf的当前位置解析出一个字符串，直到碰到一个分隔符为止，或者到了buf的结尾 /// 此方法不负责调整buf位置，调用之前务必使buf当前位置处于字符串开头。在读取完成 /// * 后，buf当前位置将位于分隔符之后 /// /// The buf. /// The delimit. /// public static string GetString(ByteBuffer buf, byte delimit) { ByteBuffer temp = new ByteBuffer(); while (buf.HasRemaining()) { byte b = buf.Get(); if (b == delimit) return GetString(temp.ToByteArray()); else buf.Put(b); } return GetString(temp.ToByteArray()); } #endregion #region GetSequence public static byte [] GetSequence( int lenth) { byte [] bs = new byte [lenth]; new Random().NextBytes(bs); return bs; } /// /// 生成一个2字节的随机Sequence /// /// public static byte [] GetSequence() { return GetSequence(2); } #endregion /// 判断IP是否全0 /// /// The ip. /// public static bool IsIPZero( byte [] ip) { for ( int i = 0; i < ip.Length; i++) { if (ip[i] != 0) return false ; } return true ; } /// ip的字节数组形式转为字符串形式的ip /// /// The ip. /// public static String IPStringFromByteArray( byte [] ip) { StringBuilder sb = new StringBuilder(); sb.Append(ip[0] & 0xFF); sb.Append( '.' ); sb.Append(ip[1] & 0xFF); sb.Append( '.' ); sb.Append(ip[2] & 0xFF); sb.Append( '.' ); sb.Append(ip[3] & 0xFF); return sb.ToString(); } /// /// 将IP字符串转换成字节 /// /// /// public static byte [] IPStringToByteArray( string ip) { byte [] bytes = new byte [4]; string [] s = ip.Split( '.' ); if (s.Length == 4) { for ( int i = 0; i < 4; i++) { bytes[i] = ( byte ) int .Parse(s[i]); } } return bytes; } /// /// 将昵称的16进制字符串转换成普通文本 /// /// /// public static string HexNicktoString( string hexNick) { byte [] data = HexStringToByteArray(hexNick); return Encoding.UTF8.GetString(data); } /// /// 把字节数组从offset开始的len个字节转换成一个unsigned int /// 【此函数摘抄自网络】 /// /// 字节数组 /// 从哪里开始转换. /// 转换长度, 如果len超过8则忽略后面的. /// public static uint GetUInt( byte [] inData, int offset, int len) { uint ret = 0; int end = 0; if (len > 8) end = offset + 8; else end = offset + len; for ( int i = 0; i < end; i++) { ret <<= 8; ret |= ( uint )inData[i]; } return ret; } /// /// 将QQ号码字符串转换成十六进制显示 /// /// /// public static string QQToHexString( long qq) { string hexstr = Convert.ToString(qq, 16); if (hexstr.Length == 8) { return hexstr; } if (hexstr.Length > 8) { return null ; } int a = 8 - hexstr.Length; string b = "" ; for ( int i = 0; i < a; i++) { b += "0" ; } hexstr = (b + hexstr).ToUpper(); return hexstr; } /// /// 将IP的字节流转换成文本格式 /// /// /// public static string HexIPToString( string hexIP) { string ip = ((Convert.ToInt32(hexIP.Substring(0, 2), 16)).ToString()) + "." + ((Convert.ToInt32(hexIP.Substring(2, 2), 16)).ToString()) + "." + ((Convert.ToInt32(hexIP.Substring(4, 2), 16)).ToString()) + "." + ((Convert.ToInt32(hexIP.Substring(6, 2), 16)).ToString()); return ip; } /// /// 把字符串转换成int /// /// 字符串 /// 如果转换失败，返回这个值 /// public static int GetInt( string s, int defaultValue) { int value; if ( int .TryParse(s, out value)) { return value; } else { return defaultValue; } } /// /// /// /// /// public static byte [] ConvertImageToByteArray(Image image) { // 定义字节数组存放图像数据 byte [] bImage; try { // 定义内存流，并把图像保存到此流中，然后把内存流对象转变为字节数组 using (MemoryStream ms = new MemoryStream()) { Bitmap b = new Bitmap(image); b.Save(ms, image.RawFormat); bImage = ms.ToArray(); ms.Close(); } } catch (Exception) { throw ; } return bImage; } /// /// 返回16位小数 /// /// public static double getRadomNum() { Random rd = new Random(); double result = rd.NextDouble(); return result; } public static long ByteArrayToLong( byte [] arr, int Offset, int VarLength) { long num = 0L; try { if (VarLength == 4) { num += Convert.ToInt64(arr[Offset + 3]); num += ( long )(Convert.ToInt64(arr[Offset + 2]) * Math.Pow(2.0, 8.0)); num += ( long )(Convert.ToInt64(arr[Offset + 1]) * Math.Pow(2.0, 16.0)); return (num + (( long )(Convert.ToInt64(arr[Offset]) * Math.Pow(2.0, 24.0)))); } if (VarLength == 2) { num += Convert.ToInt64(arr[Offset + 1]); num += Convert.ToInt64(( double )(arr[Offset] * Math.Pow(2.0, 8.0))); } } catch (Exception exception) { throw new Exception( "Error in Converting Bytes to Long()" , exception); } return num; } /// /// QQ登录时POST的参数clientid /// /// public static uint GetClientID() { uint clientid= uint .Parse( new Random(Guid.NewGuid().GetHashCode()).Next(0, 99) + "" + GetTimestamp(DateTime.Now) / 1000000); return clientid; } public static int GetGTK( string skey) { int hash = 5381; for ( int i = 0; i <= skey.Length - 1; i++) { hash += (hash << 5) + Convert.ToInt32( char .Parse(skey.Substring(i, 1))); } hash = hash & 0x7fffffff; return hash; } public static string UnicodeToGb( string hex) { Regex regex = new Regex( @"\\u(?'hex'[0-9A-F]{4})" ); MatchCollection matches = regex.Matches(hex); foreach (Match macth in matches) { string str = string .Empty; string hex_item = macth.Groups[ "hex" ].Value; for ( int i = 0; i < hex_item.Length / 4; i++) { str += ( char ) short .Parse(hex_item, global::System.Globalization.NumberStyles.HexNumber); } hex = hex.Replace( "\\u" + hex_item, str); } return hex; } /// /// 将汉字转换为Unicode /// /// 要转换的字符串 /// public static string ToUnicode( string text) { byte [] bytes = System.Text.Encoding.Unicode.GetBytes(text); string lowCode = "" , temp = "" ; for ( int i = 0; i < bytes.Length; i++) { if (i % 2 == 0) { temp = System.Convert.ToString(bytes[i], 16); //取出元素4编码内容（两位16进制） if (temp.Length < 2) temp = "0" + temp; } else { string mytemp = Convert.ToString(bytes[i], 16); if (mytemp.Length < 2) mytemp = "0" + mytemp; lowCode = lowCode + @"\u" + mytemp + temp; //取出元素4编码内容（两位16进制） } } return lowCode; } public static string LongToHexString( long num) { return string .Format( "{0:X8}" , num); } public static byte [] LongToByteArray( long num) { byte [] bytes = new byte [4]; bytes[0] = ( byte )(num >> 0x18); bytes[1] = ( byte )(num >> 0x10); bytes[2] = ( byte )(num >> 8); bytes[3] = ( byte )(num); return bytes; } /// /// 将QQ号码字符串转换成十六进制显示 /// /// /// public static string HexQQToString( long qq) { string hexstr = Convert.ToString(qq, 16); if (hexstr.Length == 8) { return hexstr; } if (hexstr.Length > 8) { return null ; } int a = 8 - hexstr.Length; string b = "" ; for ( int i = 0; i < a; i++) { b += "0" ; } hexstr = (b + hexstr).ToUpper(); return hexstr; }