难题：StreamReader是不是可以做到行合并？

[csdner]

文本文件的内容如下:
BEGIN
User: Zhao
BEGIN
User: 1) Qian
User: 2) Sun
BEGIN
...

也就是说每段用BEGIN分割，我想把它转换成如下格式：

BEGIN
User: Zhao
BEGIN
User: Qian,Sun
BEGIN
...


也就是说把每段的USER都合并成一行！

不知道StreamReader怎样做到这种效果？

谢谢！

[csdner]

up

[王集鹄]

private void button1_Click(object sender, EventArgs e)
{
StreamReader vStreamReader = new StreamReader(
@"C:\temp\temp.txt", Encoding.Default);
string vText = string.Empty;
string vLine;
string vTemp = string.Empty;
while ((vLine = vStreamReader.ReadLine()) != null)
{
if (vLine.IndexOf("User: ") == 0)
{
int i = vLine.IndexOf(")");
if (i < 0) i = 6; else i += 2;
vTemp += "," + vLine.Substring(i);
}
else
{
if (vTemp != string.Empty)
{

vText += "User: " + vTemp.Substring(1) + "\r\n";
vTemp = string.Empty;
}
vText += vLine + "\r\n";
}
}
if (vTemp != string.Empty)
{
vText += "User: " + vTemp.Substring(1) + "\r\n";
vTemp = string.Empty;
}
vStreamReader.Close();

StreamWriter vStreamWriter = new StreamWriter(
@"C:\temp\temp~.txt", false, Encoding.Default);
vStreamWriter.Write(vText);
vStreamWriter.Close();
}

[csdner]

谢谢老兄！给分了！