改为: string BuyId;
for (int i = 0; i <= GridView1.Rows.Count-1; i++)
{ if ( cb.Checked == true )
{BuyId+=this.GridView1.Rows.Cells[1].Text+“,”; }｝Modelruku rk = new Modelruku(BuyId.Trim(','));
new rukuDAO().ruku(rk);
DataTable dt2 = new DataTable(); ...
