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新建虚拟环境 1 
 2conda create --name my_env_name [python=3.9] # Create the environment from scratch 
 conda env create -f environment.yml # Create the environment from the environment.yml file
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列出所有虚拟环境 1 conda env list 
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激活虚拟环境 1 conda activate my_env_name 
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查看虚拟环境内安装包 1 
 2conda list -n my_env_name # deactivated 
 conda list # activated
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导出虚拟环境 1 conda env export > environment.yml 
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重建虚拟环境 1 conda env create -f environment.yml 
 
         
              