conda create --name python34 python=3.4
conda info -e
activate python34 # for windows
source activate python34 # for linux & mac
deactivate python34 # for windows
source deactivate python34 # for linux
conda remove --name python34 --all
conda install numpy
conda list
conda list -n python34 # 查看指定环境安装的Python包
conda remove -n python34 numpy
原文:http://blog.51cto.com/11114389/2163079