RSS数据输出格式化字符

protected string FormatXml(string source)

{

StringBuilder sb = new StringBuilder();

XmlTextWriter writer = null;

try

{

XmlDocument doc = new XmlDocument();

doc.LoadXml(source);

writer = new XmlTextWriter(new StringWriter(sb));

writer.Formatting = Formatting.Indented;

doc.WriteTo(writer);

}

finally

{

if (writer != null) writer.Close();

}

return sb.ToString();

}