Excel 换行

//特殊格式－字体
WritableFont gFont =new WritableFont(WritableFont.ARIAL,10, WritableFont.NO_BOLD,false, UnderlineStyle.NO_UNDERLINE,Colour.BLACK);
//特殊格式－用字体定义格式
WritableCellFormat gFormat =new WritableCellFormat(gFont);
//设置居中对齐
gFormat.setAlignment(Alignment.CENTRE);
//自动换行
gFormat.setWrap(true);
//强制换行
char newLine = 0x000A;
ws.addCell(new Label(1,0,"通话时长,（万分钟）".replace(',',newLine),gFormat));