1、问题现象：
D:\path\python.exe "D:/ML_SourceCode/machinelearninginaction/Ch/b.py"
Traceback (most recent call last):
File "D:\Anaconda3\lib\site-packages\numpy\core\__init__.py", line 16, in <module>
from . import multiarray
ImportError: DLL load failed: 找不到指定的模块。
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:/ML_SourceCode (1)/machinelearninginaction/Ch/b.py", line 2, in <module>
from a import A
File "D:\ML_SourceCode (1)\machinelearninginaction\Ch\a.py", line 1, in <module>
from numpy import *
File "D:\Anaconda3\lib\site-packages\numpy\__init__.py", line 142, in <module>
from . import add_newdocs
File "D:\Anaconda3\lib\site-packages\numpy\add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "D:\Anaconda3\lib\site-packages\numpy\lib\__init__.py", line 8, in <module>
from .type_check import *
File "D:\Anaconda3\lib\site-packages\numpy\lib\type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "D:\Anaconda3\lib\site-packages\numpy\core\__init__.py", line 26, in <module>
raise ImportError(msg)
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: DLL load failed: 找不到指定的模块。
2、原因：
numpy版本太低
3、解决：
1.在anaconda prompt下使用conda工具执行
conda uninstall numpy
（如果还有numpy-base，也用此方法卸载）
2.在anaconda prompt下使用pip工具执行
pip intall numpy
4、总结
这种问题比较难以侦测和修复，主要无法感知其具体的问题根源，默认可以升级至最新版本。
