python 在虚拟环境中安装项目依赖requirements.txt
进入到了虚拟环境中:切到虚拟环境目录的Script文件下,输入命令:pip install –r 目录/requirements.txt
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进入到了虚拟环境中:切到虚拟环境目录的Script文件下,输入命令:pip install –r 目录/requirements.txt