full stack developer http://www.infoq.com/cn/news/2015/09/Stack-Ops
lab.imjs.work/growth.pdf
http://stackoverflow.com/questions/4797050/how-to-run-process-as-background-and-never-die
##161122 Deep Learning https://cn.udacity.com/course/machine-learning-engineer-nanodegree--nd009
#161121
ANN BP http://www.cnblogs.com/luxiaoxun/archive/2012/12/10/2811309.html
#161115
MD5 vs SHA256
http://www.codeproject.com/Articles/462746/A-Cplusplus-SHA-and-MD-Implementation-with-Crypt
https://www.quora.com/What-is-the-best-way-to-create-an-MD5-hash-in-C++
http://stackoverflow.com/questions/1220046/how-to-get-the-md5-hash-of-a-file-in-c
CRC
https://tfetimes.com/c-crc-32/ http://nchc.dl.sourceforge.net/project/crccalculator/CRC/CRC%20Calculator.zip
VLD c++ memory leak tool
https://vld.codeplex.com/documentation
Umdhtools.exe: How to use Umdh.exe to find memory leaks https://support.microsoft.com/en-us/kb/268343
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