记Anaconda安排配置Python和Opencv

# Anaconda安排配置Python和Opencv
https://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/

全√

conda config –-add channels https://mirrors.ustc.edu.cn/anaconda/pkgs/main/
conda config –-set show_channel_urls yes //设置搜索时显示通道
conda config –-show channels
创建名为opencv的新环境:
conda create -n opencv python=3.7
y

# 安装opencv-python库：

activate opencv
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple opencv-python
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple matplotlib

# 
pip install opencv-python   （如果只用主模块，使用这个命令安装）
pip install opencv-contrib-python （如果需要用主模块和contrib模块，使用这个命令安装）

# 报错ModuleNotFoundError: No module named 'cv2'
用conda安装:
conda install opencv

# 或者在导入opencv前，写上：

import sys
sys.path.append('/*/*/*/python-*/site-packages')