socket通讯中需要用到的一些数据类型转换的方法

在上次做的项目中，使用到了Socket进行数据通讯，其中用到了一些数据类型进行转换的方法，现在

贴出来给大家分享下，希望大家多给些意见，能进一步帮忙完善更好了，先谢过了。

/// <summary>
/// 整数转为Byte【】
/// 低位在前，高位在后
/// </summary>
/// <param name="r">要转换的整数</param>
/// <param name="digits">Byte位数</param>
/// <returns></returns>
private static byte[] GetBytesFromInt(int r, int digits)
{
byte[] bt = new byte[digits];
int j=8;
for (int k = 0; k < digits; k++)
{
j=8*k;
bt[k]=(byte)(r>>j);
}
return bt;
}

/// <summary>
/// 将字符转换为Byte数组
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
private static byte[] GetBytesFromStr(string s)
{
byte[] bt = Encoding.UTF8.GetBytes(s);
return bt;
}
/// <summary>
/// 计算字符传编码时的字节长度
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
private static int GetBytesLengthFromStr(string s)
{
int iLength = Encoding.UTF8.GetByteCount(s);
return iLength;
}

/// <summary>
/// 将Byte数组转化为Int16
/// </summary>
/// <param name="bt"></param>
/// <param name="index"></param>
/// <returns></returns>
private static Int16 GetInt16FromBytes(byte[] bt)
{
Int16 s = BitConverter.ToInt16(bt,0);
return s;
}

/// <summary>
/// 将Byte数组转化为Int32
/// </summary>
/// <param name="bt"></param>
/// <param name="index"></param>
/// <returns></returns>
private static int GetIntFromBytes(byte[] bt)
{
int s = BitConverter.ToInt32(bt, 0);
return s;
}

/// <summary>
/// 将Byte数组转化为String
/// </summary>
/// <param name="bt"></param>
/// <param name="index"></param>
/// <returns></returns>
private static string GetStrFromBytes(byte[] bt)
{
string s = BitConverter.ToString(bt, 0);
return s;
}