private void btnTo_Click(object sender, EventArgs e)
{
StringBuilder sb = new StringBuilder();
string json = dt.ToJson();
sb.AppendLine("ToJson：" + json);
MDataTable t = MDataTable.CreateFrom(json);
sb.AppendLine("从Josn还原了------------------");
string xml = t.ToXml();
sb.AppendLine("ToXml：" + xml);
t = MDataTable.CreateFrom(xml);
sb.AppendLine("从Xml还原了--------------------");
sb.AppendLine("还可以和List<T>,Dictionary,ArrayList,HasTable等几乎所有的常用类或数组交互");
rtxtText.Text = sb.ToString();
}