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//声明一个名称为default的datatable DataTable dt = new DataTable("default"); //声明int类型的列id DataColumn dc = new DataColumn("id", typeof(int)); //为Datatable增加一列 dt.Columns.Add(dc); //声明int类型的列title dc = new DataColumn("title", typeof(string)); //为Datatable增加一列 dt.Columns.Add(dc); //声明int类型的列content dc = new DataColumn("content", typeof(string)); //为Datatable增加一列 dt.Columns.Add(dc); dc.AutoIncrement = true; //为Datatable增加一行 DataRow dr = dt.NewRow(); dr["id"] = 1; dr["title"] = "hao"; dr["content"] = "content"; dt.Rows.Add(dr); //为Datatable增加一行 dr = dt.NewRow(); dr["id"] = 1; dr["title"] = "hao"; dr["content"] = "content"; dt.Rows.Add(dr);