进入虚拟环境
1 列出所有虚拟环境conda env list
2 进入虚拟环境conda activate 虚拟环境名
安装依赖包
pip install -r requirements.txt
这时候install flask遇到错误：ERROR: Could not find a version that satisfies the requirement Werkzeug>=0.15 (from flask) (from versions: none)ERROR: No matching distribution found for Werkzeug>=0.15 (from flask)
解决方法: 使用镜像网站pip install 安装包名字 -i http://pypi.doubanio.com/simple/ --trusted-host pypi.doubanio.com