linux环境安装 annaconda 的命令行
wget https://repo.anaconda.com/archive/Anaconda3-2024.02-1-Linux-x86_64.sh
bash Anaconda3-2024.02-1-Linux-x86_64.sh
You can undo this by running `conda init –reverse $SHELL`? [yes|no] 选yes 是否将init配置加载到环境变量中
source ~/.bashrc 进入base conda环境
conda –version
创建并激活虚拟环境（命名为 ai，Python 3.9）：
conda create -n ai python=3.9 -y
conda activate ai
安装AI核心框架（以PyTorch为例）：
conda install pytorch torchvision torchaudio pytorch-cuda=11.8 -c pytorch -c nvidia
安装其他科学计算包
conda install jupyter numpy pandas matplotlib scikit-learn seaborn -y
配置Jupyter Notebook
jupyter notebook –generate-config
配置jupyter的密码
jupyter notebook password
创建启动脚本（让Jupyter在后台运行）：
cd ~
vim start_jupyter.sh
#!/bin/bash
source ~/anaconda3/bin/activate ai
jupyter notebook –ip=’0.0.0.0′ –port=8888 –no-browser –notebook-dir=’/root’ –allow-root
启动jupyter
~/start_jupyter.sh
在阿里云部署的annaconda环境，再次导入决策树包，不再报错！
