pip install 安装指定版本命令

pip install 软件名==版本号

pip install scikit-learn		#下载scikit-learn

pip install scikit-learn==0.18.0	# 下载scikit-learn的0.18.0版本

pip install --user-v scikit-learn==0.18.0	# 以管理者身份下载scikit-learn的0.18.0版本

python -m pip install scikit-learn		#将库中的python模块用作脚本去运行安装scikit-learn

参考:https://blog.csdn.net/sexyluna/article/details/84580987?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromBaidu-1.control&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromBaidu-1.control

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