//新建单元格对象
PdfPCell cell = new PdfPCell(new Phrase(“test”));
//隐藏上边框
cell.disableBorderSide(1);
//隐藏下边框 //
cell.disableBorderSide(2);
//隐藏上、下边框 //
cell.disableBorderSide(3);
//隐藏左边框 //
cell.disableBorderSide(4);
//隐藏左、上边框 //
cell.disableBorderSide(5);
//隐藏左、下边框 //
cell.disableBorderSide(6);
//隐藏左、上、下边框 //
cell.disableBorderSide(7);
//隐藏右边框 //
cell.disableBorderSide(8);
//隐藏右、上边框 //
cell.disableBorderSide(9);
//隐藏右、下边框 /
/cell.disableBorderSide(10);
//隐藏右、上、下边框 //
cell.disableBorderSide(11);
//隐藏左、右边框 //
cell.disableBorderSide(12);
//左右没了 //隐藏上、左、右边框 /
/cell.disableBorderSide(13);
//只剩下 //隐藏下、左、右边框 //
cell.disableBorderSide(14);
//只剩上 //隐藏全部 //
cell.disableBorderSide(15);
