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分享 db2.Columns.Add("ItemID", typeof(int));
db2.Columns.Add("Title", typeof(string));
db2.Columns.Add("Begin", typeof(DateTime));
db2.Columns.Add("Deadline", typeof(DateTime));
db2.Columns.Add("Originalprice", typeof(Decimal));
db2.Columns.Add("Currentprice", typeof(Decimal));
db2.Columns.Add("Supplier", typeof(string));
db2.Columns.Add("Address", typeof(string));
db2.Columns.Add("Detail", typeof(string));
for (int i = 0; i < 4; i++)
{
row = db2.NewRow();
row["ItemID"] = db.Rows[i]["ItemID"];
row["Title"] = db.Rows[i]["Title"];
row["Begin"] = db.Rows[i]["Begin"];
row["Deadline"] = db.Rows[i]["Deadline"];
row["Originalprice"] = db.Rows[i]["Originalprice"];
row["Currentprice"] = db.Rows[i]["Currentprice"];
row["Supplier"] = db.Rows[i]["Supplier"];
row["Address"] = db.Rows[i]["Address"];
row["Detail"] = db.Rows[i]["Detail"];
db2.Rows.Add(row);
}DataTable db1;
DataTable db2 = db1.Clone();
DataRow dr = db1.Rows[0];
db2.ImportRow(dr);
DataTable db1 = gettable();
DataTable db2 = db1.Copy();