public static void decodeToStream(String base64, OutputStream out, boolean isCloseOut) {
		IoUtil.write(out, isCloseOut, Base64Decoder.decode(base64));
	}
public static void decodeToStream ( String base64 , OutputStream out , boolean isCloseOut ) { IoUtil . write ( out , isCloseOut , Base64Decoder . decode ( base64 ) ) ; }
base64解码

@param base64 被解码的base64字符串
@param out 写出到的流
@param isCloseOut 是否关闭输出流
@since 4.0.9