C#中QuotedPrintable编解码

using System.Collections;

using System.Globalization;

public string QuotedPrintableEncode(string AText)// QP编码

{

string Result = "";

byte[] vBuffer = Encoding.Default.GetBytes(AText);

foreach(byte vByte in vBuffer)

// 可见字符并非"="(#61)

if ((vByte >= 33 && vByte <= 60) || (vByte >= 62 && vByte <= 126))

Result += (char)vByte;

else Result += "=" + vByte.ToString("X2");

return Result;

}

public static string QuotedPrintableDecode(string ACode)// 解码

{

ArrayList vBuffer = new ArrayList();

for(int i = 0; i < ACode.Length; i++)

{

if (ACode[i] == '=')

{

i++;

if (ACode[i] != '/r')

{

byte vByte;

if (byte.TryParse(ACode.Substring(i, 2),

NumberStyles.HexNumber, null, out vByte))

vBuffer.Add(vByte);

}

i++;

}

else if (ACode[i] != '/n') vBuffer.Add((byte)ACode[i]);

}

return Encoding.Default.GetString((byte[])vBuffer.ToArray(typeof(byte)));

}

private void button1_Click(object sender, EventArgs e)

{

Text = QuotedPrintableDecode(QuotedPrintableEncode("zswang 路过"));

}