python2.7的pip安装： wget https://bootstrap.pypa.io/pip/2.7/get-pip.pypython get-pip.py -i http://pypi.douban.com/simple --trusted-host pypi.douban.compip2 --version
python2.7的pip安装：
wget https://bootstrap.pypa.io/pip/2.7/get-pip.pypython get-pip.py -i http://pypi.douban.com/simple --trusted-host pypi.douban.compip2 --version