数据源记录集：ClientDataSetSource；目标记录集：ClientDataSetCopy

1）复制一条记录。

  ClientDataSetCopy.Close;
  ClientDataSetCopy.Fields.Clear;
  ClientDataSetCopy.FieldDefs.Clear;

  //复制字段定义
  ClientDataSetCopy.FieldDefs.Assign( ClientDataSetSource.FieldDefs);
  ClientDataSetCopy.CreateDataSet;
  ClientDataSetCopy.Edit; //Append;

  //复制当前记录行
  ClientDataSetCopy.CopyFields(cds1);

2）复制所有记录。

  ClientDataSetCopy.Close;
  ClientDataSetCopy.Fields.Clear;
  ClientDataSetCopy.AppendData(ClientDataSetSource.Data,False);
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作者：三界
来源：CSDN
原文：https://blog.csdn.net/qq56430204/article/details/50341421
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