This repo is to
list the 知乎(zhihu) questions whose ID is a date, e.g. today 20150407.
According to the answer to the question 知乎上的第一个问题是什么？, the first ID of Zhihu questions is 19550225. However, the ID number of the questions are not continuous, with a random interval from 1 to 4 (See this). So I import the library RCurl and use
url.exists(Q_url)
to check if the "date ID" is valid.
After outputting the raw result, I further tidied it up into .md format with
for_md <- paste0(Zhihu_Questions$QID," | [", Zhihu_Questions$Question,"](http://www.zhihu.com/question/", Zhihu_Questions$QID, ")")
write(formd, file = "result.md")
Then I opened the .md file and add the column names
ID (Date) | Question
--------- | --------
The result in result.md was collected on April 1st, 2015.