Python_ Part 2 programming problems (3)_ solve numpy.core.multiarray Failed to import problem

when importing tensorflow and import keras: the root cause is low numpy

method 1: PIP uninstall numpy, make sure to uninstall numpy completely, then PIP install-u numpy

method 2: after uninstalling numpy, delete anaconda3\lib\site-packages\numpy\core\multiarray. Cp36-win_amd64. pyd file, and then PIP install -u numpy