C#序列化与反序列化Xml，利用范型做通用化处理

public class yzzSerialize
{
private yzzSerialize()
{ }
private static yzzCache cache = new yzzCache();
public static T GetfromXml<T>(string xmlpath, T t)
{
using (FileStream fs = new FileStream(xmlpath, FileMode.Open, FileAccess.Read))
{
Type type = typeof(T);
XmlSerializer xs = cache[type.FullName] as XmlSerializer;
if (xs == null)
{
xs = new XmlSerializer(type);
cache[type.FullName] = xs;
}
t = (T)xs.Deserialize(fs);
fs.Close();
return t;
}
}
public static void SetToXml<T>(string xmlpath, T t)
{
if (t == null)
return;
using (FileStream fs = new FileStream(xmlpath, FileMode.Create, FileAccess.Write))
{
Type type = typeof(T);
XmlSerializer xs = cache[type.FullName] as XmlSerializer;
if (xs == null)
{
xs = new XmlSerializer(type);
cache[type.FullName] = xs;
}
xs.Serialize(fs, t);
t = default(T);
fs.Close();
}
}
}