这在解释器中有效
unordered_map<BSTR>但是如果我将其放在jupyter的单元格中，我会得到：
python
Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> subprocess.call(["sudo", "apt", "update"])
[sudo] password for stefan:
Get:1 file:/var/cuda-repo-10-1-local-10.1.105-418.39 InRelease
Ign:1 file:/var/cuda-repo-10-1-local-10.1.105-418.39 InRelease
.
.
.
etched 2,778 kB in 1s (2,305 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
12 packages can be upgraded. Run 'apt list --upgradable' to see them.
0
>>> exit()