Original error was: cannot import name 'multiarray'

well, it is like this, originally the computer installed python2.7 and python3.6
use numpy these libraries can be used, but recently downloaded the latest version of anaconda (python3.7.0 Anaconda 5.3.0 64-bit) and then can not use these libraries
always remind the following large piece of code, may I ask how to solve it?

ImportError                               Traceback (most recent call last)
~\AppData\Roaming\Python\Python36\site-packages\numpy\core\__init__.py in <module>
     15 try:
---> 16     from . import multiarray
     17 except ImportError as exc:

ImportError: cannot import name "multiarray"

During handling of the above exception, another exception occurred:

ImportError                               Traceback (most recent call last)
<ipython-input-1-0aa0b027fcb6> in <module>
----> 1 import numpy as np

~\AppData\Roaming\Python\Python36\site-packages\numpy\__init__.py in <module>
    140         return loader(*packages, **options)
    141 
--> 142     from . import add_newdocs
    143     __all__ = ["add_newdocs",
    144                "ModuleDeprecationWarning",

~\AppData\Roaming\Python\Python36\site-packages\numpy\add_newdocs.py in <module>
     11 from __future__ import division, absolute_import, print_function
     12 
---> 13 from numpy.lib import add_newdoc
     14 
     15 -sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp-sharp

~\AppData\Roaming\Python\Python36\site-packages\numpy\lib\__init__.py in <module>
      6 from numpy.version import version as __version__
      7 
----> 8 from .type_check import *
      9 from .index_tricks import *
     10 from .function_base import *

~\AppData\Roaming\Python\Python36\site-packages\numpy\lib\type_check.py in <module>
      9            "common_type"]
     10 
---> 11 import numpy.core.numeric as _nx
     12 from numpy.core.numeric import asarray, asanyarray, array, isnan, zeros
     13 from .ufunclike import isneginf, isposinf

~\AppData\Roaming\Python\Python36\site-packages\numpy\core\__init__.py in <module>
     24 Original error was: %s
     25 """ % (exc,)
---> 26     raise ImportError(msg)
     27 finally:
     28     for envkey in env_added:

ImportError: 
Importing the multiarray numpy extension module failed.  Most
likely you are trying to import a failed build of numpy.
If you"re working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control).  Otherwise reinstall numpy.

Original error was: cannot import name "multiarray"

Python

Sep.01,2021