virtualenv已经安装
(base) PS C:\Users\HP> pip install nose
Requirement already satisfied: nose in c:\users\hp\anaconda3\lib\site-packages (1.3.7)
(base) PS C:\Users\HP> cd C:\Users\HP\projects\skeleton
(base) PS C:\Users\HP\projects\skeleton> python -m "nose"
Ran 0 tests in 0.021s
OK
(base) PS C:\Users\HP\projects\skeleton> nosetests
程序“nosetests.exe”无法运行: 拒绝访问。所在位置 行:1 字符: 1
(base) PS C:\Users\HP\projects\skeleton>