其余SD k类是帮助器类，用于封装错误信息或者提供整个sdk中使用的有用工具。

The rest of the SDK classes are helper classes used to encapsulate error information or provide useful utilities used throughout the SDK.

youdao

如果出现此类错误，可使用管道xargs实用工具。

If such an error occurs, use a pipe and the xargs utility.

youdao

基本的git包需要使用Perl、perl库进行加密和错误处理，系统上还将安装补丁实用工具。

The basic Git package requires that Perl, Perl libraries for encryption and error handling, and the patch utility are also installed on your system.

youdao

Also one of the most useful resources you'll find is the course's website; where not only will the obvious be posted like handouts and such, pests in the syllabus, but there will also be a variety of tools that you can turn to over the course of the semester including our own videos.

而且你将发现最有用的资源之一就是课程网站,这里不仅有讲义,教学大纲的错误之处，还有大量课程中使用的工具,包括我们自己的视频等,这对这学习很有帮助。

哈佛公开课 - 计算机科学课程节选