DataTable dt = FExtraWrkDM.cdsExtraWrkClone.Copy(); FExtraWrkDM.DataList = dt; FExtraWrkDM.DataList.AcceptChanges(); FExtraWrkDM.cdsExtraWrkClone.AcceptChanges();如何封装起来成 BackUpSavePoints

您可以封装一个名为`BackUpSavePoints`的方法，方法的代码如下：

public void BackUpSavePoints()
{
    DataTable dt = FExtraWrkDM.cdsExtraWrkClone.Copy(); 
    FExtraWrkDM.DataList = dt;
    FExtraWrkDM.DataList.AcceptChanges();
    FExtraWrkDM.cdsExtraWrkClone.AcceptChanges();
}

这样，您就可以通过调用`BackUpSavePoints`方法来执行这段代码，而不需要在每个需要使用这段代码的地方重复编写这段代码。