C#编码创造一个DataSet

            DataSet ds = new DataSet("tb");
            DataTable dt = new DataTable();
            ds.Tables.Add(dt);
            DataColumn dc = new DataColumn();
            dc.ColumnName = "id";
            dc.DataType = typeof(int);
    
            DataColumn dc1 = new DataColumn();
            dc1.ColumnName = "name";
            dc1.DataType = typeof(string);
            dt.Columns.Add(dc);
            dt.Columns.Add(dc1);
            dt.PrimaryKey = new DataColumn[] { dc };
            DataRow dr = dt.NewRow();
            dr[0] = 1;
            dr[1] = "zhangsan";
            DataRow dr1 = dt.NewRow();
            dr1[0] = 2;
            dr1[1] = "lisi";
            dt.Rows.Add(dr);
            dt.Rows.Add(dr1);