POI 货币

??CellStyle cs = wb.createCellStyle();
??cs.setDataFormat((short) 4);
??cell.setCellStyle(cs);
??cell.setCellValue(value);
??cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
//??HSSFDataFormat df = workbook.createDataFormat();??
//??numStyle.setDataFormat(df.getFormat("#,##0.00"));

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http://blog.csdn.net/zxcvbnmluton/archive/2010/12/10/6066916.aspx