Anconda spyder内引用OpenCV出现错误ImportError: numpy.core.multiarray failed to import

解决方案：

1.在anaconda的prompt中，删除原有的numpy

pip uninstall numpy

2.安装numpy

pip install numpy

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或者直接升级：

pip install --upgrade numpy

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可能遇到问题：

pip install 时报错 ERROR: Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问