摘要： DataTable dt = new DataTable(); DataColumn dc = new DataColumn(); dc.ColumnName = "A1"; dc.DataType = System.Type.GetType("System.Decimal"); dt.Columns.Add(dc); DataColumn dc1 = new DataColumn(); dc1.ColumnName = "A2"; dc1.DataType = System.Type.GetType("System.Dec 阅读全文