之前并没有安装opencv-python，今天打算安装一下
在pycharm的虚拟环境库安装搜索中到有libopencv,?opencv,?py-opencv共三个包，根本没有opencv-python啊，看其他博客的解释，感觉最后并没有给出结果，只介绍了这几个库：
找到介绍如下：
OpenCV is computer vision a library written using highly optimized C/C++ code. It makes use of multiprocessing in the background. It has a collection of a large number of algorithms tested and verifiend by the developers. The best thing about this is it’s FREE under the BSD license.
libopencv is only a metapackage. These packages do not contain actual software, they simply depend on other packages to be installed. So libopencv is a metapackage which simply references one or more related packages which are loosely grouped together. It is dedicated for installing OpenCV in Ubuntu and Debian OS.
Python-OpenCV is the OpenCV library available as a wrapper with bindings for python. The link also shows how to install OpenCV in Ubuntu OS.
那只能试试水了，后面搜到一篇在anaconda prompt来install opencv-python，
试下，python版本是3.7.13，安装pip3 install opencv-python==3.4.2.16
额，还挺顺利，就是网速有点慢啊。。等待ing
本来还想尝试下，用conda install来安装opencv-python，看其他博主反馈，conda里根本没有opencv-python的包，所以就不浪费时间了
执行conda list，可以看到安装完成，到代码里调用看看
可以调用函数了，暂时先这样把。。
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