在Pycharm中更新安装最新版本pip，安装tensorflow

在pycharm中安装tensorflow时，安装失败，并且终端显示：

WARNING: You are using pip version 20.1.1; however, version 22.3 is available.
You should consider upgrading via the 'D:\PythonStudy\venv\Scripts\python.exe -m pip instal
l --upgrade pip' command.

此时选择安装，最新版的pip，在终端中输入：

python -m pip install --upgrade pip -i https://pypi.douban.com/simple

但是此时报错：
出现：UnicodeDecodeError: ‘gbk’ codec can’t decode byte 0xa3 in position 20:illegal multibyte sequence

此时可以转至该文件这部分
比如我的：

    try:
        # Although PEP 405 does not specify, the built-in venv module always
        # writes with UTF-8. (pypa/pip#8717)
        with open(pyvenv_cfg_file) as f:
            return f.read().splitlines()  # avoids trailing newlines
    except OSError:
        return None

将 with open 行改变如下：

with open(pyvenv_cfg_file, encoding="utf-8") as f:

然后再安装更新pip：

python -m pip install --upgrade pip -i https://pypi.douban.com/simple

更新pip就成功了

随后进行安装tensorflow，使用镜像安装更快：

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple tensorflow

成功：

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参考：https://blog.csdn.net/weixin_44852386/article/details/105477524