安装opencv-python时，需要安装与环境中python匹配的版本，要不然会报错
ImportError: DLL load failed while importing cv2: 找不到指定的模块。安装命令
# 匹配python=3.8.15
pip install opencv-python==4.4.0.46
pip install opencv-contrib-python==4.4.0.46调用库
import cv2标签：4.4,python,cv2,opencv,pip,安装 From： https://www.cnblogs.com/wllwqdeai/p/17099847.html