code: public static List<String> readLines(String path, String charset) throws IORuntimeException {
  		return readLines(path, charset, new ArrayList<String>());
  	}
docs: 从文件中读取每一行数据
  
  @param path 文件路径
  @param charset 字符集
  @return 文件中的每行内容的集合List
  @throws IORuntimeException IO异常