public static <T> File appendLines(Collection<T> list, String path, String charset) throws IORuntimeException {
		return writeLines(list, path, charset, true);
	}
@Test
	@Disabled
	public void appendLinesTest(){
		final List<String> list = ListUtil.toList("a", "b", "c");
		FileUtil.appendLines(list, FileUtil.file("d:/test/appendLines.txt"), CharsetUtil.CHARSET_UTF_8);
	}