即使已安装，也无法在jupyter notebbok中导入numpy库

# 确保在当前环境中安装了 numpy
pip install numpy

# 激活当前环境并启动 Jupyter Notebook
source activate your_env_name
jupyter notebook

# 检查 numpy 是否安装
pip show numpy

# 如果未安装，重新安装
pip install numpy --user

# 安装 ipykernel
pip install ipykernel

# 将当前环境添加到 Jupyter 内核
python -m ipykernel install --user --name your_env_name --display-name "Python (your_env_name)"

# 卸载并重新安装 numpy
pip uninstall numpy
pip install numpy

# 检查 numpy 是否安装
pip show numpy

# 如果未安装，重新安装
pip install numpy --user

# 启动 Jupyter Notebook
jupyter notebook

import numpy as np
print(np.__version__)