windows10使用conda activate激活虚拟环境报错

 windows10安装anaconda3后配置虚拟环境，完成配置后用conda activate激活，报错如下：

C:\Users\Administrator>conda activate

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
If your shell is Bash or a Bourne variant, enable conda for the current user with

    $ echo ". C:\ProgramData\Anaconda3/etc/profile.d/conda.sh" >> ~/.bashrc

or, for all users, enable conda with

    $ sudo ln -s C:\ProgramData\Anaconda3/etc/profile.d/conda.sh /etc/profile.d/conda.sh

The options above will permanently enable the 'conda' command, but they do NOT
put conda's base (root) environment on PATH.  To do so, run

    $ conda activate

in your terminal, or to put the base environment on PATH permanently, run

    $ echo "conda activate" >> ~/.bashrc

Previous to conda 4.4, the recommended way to activate conda was to modify PATH in
your ~/.bashrc file.  You should manually remove the line that looks like

    export PATH="C:\ProgramData\Anaconda3/bin:$PATH"

^^^ The above line should NO LONGER be in your ~/.bashrc file! ^^^

尝试各种环境变量配置，仍然无效，然后按照如下方法，先输入activate，命令行前端出现(base)，然后再输入conda activate+环境名称，就可以激活虚拟环境了

C:\Users\Administrator>activate

(base) C:\Users\Administrator>conda activate