TableRow row = table2.AddRow();
var cell = row.AddCell();
var par = cell.AddParagraph();
par.Text = "测试的";
cell.Paragraphs.Add(par);
row.Cells.Add(cell);
table2.Rows.Insert(0, row);
table2.AddRow(false, 4);
table2.ApplyHorizontalMerge(0, 0, 4);