报错：
ImportError: Something is wrong with the numpy installation. While importing we detected an older version of numpy in ['C:\\Users\\Administrator\\Anaconda3\\lib\\site-packages\\numpy']. One method of fixing this is to repeatedly uninstall numpy until none is found, then reinstall this version.
报错是因为tensorflow和opencv有依赖关系，numpy版本没有更新，导致出错。
用pip3 install -U numpy尝试升级了一下numpy ,结果升级成功，但程序还是报错。用pip3 list指令查看安装的所有包，numpy的版本确实最新版本。
最后卸载numpy版本，重新安装：
结果不报错，tensorflow安装成功，问题解决。