add some functions
Merge branch 'master' of https://github.com/hulei660066/AlipayContest
实现功能：统计结果写入excel 文件中
complete 周期刚需功能和最近N天购买功能
1
rename file
nothing new
add annotations for functions
Merge branch 'master', remote-tracking branch 'upstream/master'
merge new code