public static CellStyle setColor(CellStyle cellStyle, IndexedColors color, FillPatternType fillPattern) {
		return setColor(cellStyle, color.index, fillPattern);
	}
public static CellStyle setColor ( CellStyle cellStyle , IndexedColors color , FillPatternType fillPattern ) { return setColor ( cellStyle , color . index , fillPattern ) ; }
给cell设置颜色

@param cellStyle {@link CellStyle}
@param color 背景颜色
@param fillPattern 填充方式 {@link FillPatternType}枚举
@return {@link CellStyle}