This recommendation defines five confidentiality modes of operation for use with an underlying symmetric key block cipher algorithm: Electronic Codebook (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), Output Feedback (OFB), and Counter (C
avazu-ctr-kaggle
使用来自数据
安装：
（为简单起见，我将重点放在Mac设置上）
# Make sure the following is installed
brew install pyenv readline xz
# Install pyenv-virtualenv by following the instructions from
# https://github.com/pyenv/pyenv-virtualenv#installing-with-homebr
