這幾天因為安裝pygraphviz遇到問題，處理了很久依然無解QQ
安裝步驟是直接打開cmd，然後下pip install pygraphviz，接著就顯示
Collecting pygraphviz
Using cached pygraphviz-1.5.zip (117 kB)
Installing collected packages: pygraphviz
Running setup.py install for pygraphviz ... error
ERROR: Command errored out with exit status 1:
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.....中略部分都是紅字
.....
error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft
Visual C++ Build Tools":
http://landinghub.visualstudio.com/visual-cpp-build-tools