===作业提交===
====Group1 ==== [http://gitlab.icenter.tsinghua.edu.cn/xavieryao/bitmap-db Group1]
Group3 ====Group2==== [http://gitlab.icenter.tsinghua.edu.cn/3rd_groupxavieryao/bitmap_indexing bitmap-db Group3Group1]
Group4 ====Group3==== [http://gitlab.icenter.tsinghua.edu.cn/taanng3rd_group/Bitmap bitmap_indexing Group4Group3]
Group5 ====Group4==== [http://gitlab.icenter.tsinghua.edu.cn/ddeerreekktaanng/Experiment_1_Bitmap_Index Bitmap Group5Group4]
Group6 ====Group5==== [http://gitlab.icenter.tsinghua.edu.cn/group6ddeerreekk/project1 Experiment_1_Bitmap_Index Group6Group5]
====Group6==== [http://gitlab.icenter.tsinghua.edu.cn/group6/project1 Group6] ====Group8 ==== [http://gitlab.icenter.tsinghua.edu.cn/FQX/bitmap Group8]
==项目2==