Overload List
public static MDataTable CreateFrom(NameObjectCollectionBase);
public static MDataTable CreateFrom(Object);
从List列表里加载成MDataTable
public static MDataTable CreateFrom(Object,BreakOp);
从Json或Xml字符串反加载成MDataTable
public static MDataTable CreateFrom(String);
从Json或Xml字符串反加载成MDataTable
public static MDataTable CreateFrom(String,MDataColumn);