python download_courseware.py 信息检索 #下载课程名包含"信息检索"的课程的课件 python download_courseware.py 201M4006H #下载课程编号为201M4006H的课程的课件 python download_courseware.py #不加参数，下载全部课件 加入课程网站 执行以下命令，可将指定课程加入课程网站。（课程 ...

Persistent structures implemented on top of Hashes. Supports secondary indexes to allow filtering on equality, inequality, ranges, less/greater-than, and a basic full-text search index. The full-text ...