笔记：如何在pycharm中使用anaconda的虚拟环境，新建工程和更改现有工程的虚拟环境。

1.用anaconda创建虚拟环境

(base) C:\Users\Administrator>conda -V
conda 24.5.0

(base) C:\Users\Administrator>conda create -n appenv python
Channels:
 - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
 - defaults
Platform: win-64
Collecting package metadata (repodata.json): done
Solving environment: done

## Package Plan ##

  environment location: d:\anaconda3\envs\appenv

  added / updated specs:
    - python


The following NEW packages will be INSTALLED:

  bzip2              anaconda/pkgs/main/win-64::bzip2-1.0.8-h2bbff1b_6
  ca-certificates    anaconda/pkgs/main/win-64::ca-certificates-2024.3.11-haa95532_0
  expat              anaconda/pkgs/main/win-64::expat-2.6.2-hd77b12b_0
  libffi             anaconda/pkgs/main/win-64::libffi-3.4.4-hd77b12b_1
  openssl            anaconda/pkgs/main/win-64::openssl-3.0.13-h2bbff1b_2
  pip                anaconda/pkgs/main/win-64::pip-24.0-py312haa95532_0
  python             anaconda/pkgs/main/win-64::python-3.12.3-h1d929f7_1
  setuptools         anaconda/pkgs/main/win-64::setuptools-69.5.1-py312haa95532_0
  sqlite             anaconda/pkgs/main/win-64::sqlite-3.45.3-h2bbff1b_0
  tk                 anaconda/pkgs/main/win-64::tk-8.6.14-h0416ee5_0
  tzdata             anaconda/pkgs/main/noarch::tzdata-2024a-h04d1e81_0
  vc                 anaconda/pkgs/main/win-64::vc-14.2-h2eaa2aa_1
  vs2015_runtime     anaconda/pkgs/main/win-64::vs2015_runtime-14.29.30133-h43f2093_3
  wheel              anaconda/pkgs/main/win-64::wheel-0.43.0-py312haa95532_0
  xz                 anaconda/pkgs/main/win-64::xz-5.4.6-h8cc25b3_1
  zlib               anaconda/pkgs/main/win-64::zlib-1.2.13-h8cc25b3_1


Proceed ([y]/n)? y


Downloading and Extracting Packages:

Preparing transaction: done
Verifying transaction: done
Executing transaction: done
#
# To activate this environment, use
#
#     $ conda activate appenv
#
# To deactivate an active environment, use
#
#     $ conda deactivate


(base) C:\Users\Administrator>

2.真实位置如下：

D:\anaconda3\envs\appenv

3.打开pycharm

4.新建工程，注意第五步最为重要。第六步选择实际想用的环境。

进入系统可见成功。以上是新建工程时的方法。

下面演示如何在已有工程中修改这个环境

点小三角号：

注意三是点小三角号

比如我使用的是最后一个。

等待更新：早知不选最后一个，太太大了。只是演示而已。

重启pytharm ，正常。

cs上大多是修改已有工程的，并且都说得不明白，我个人觉得。所以我的这个应该是最好的。欢迎点赞，让更多人看到。