Summary of PIP installation Pillow error in Python under Windows (reproduced)

Two kinds of errors encountered
1.
Valueerror:zlib is required unless explicitly disabled using--disable-zlib, aborting
The cause of the problem is unknown, the blogger tried a solution to solve the problem. Bo Master PC is Pthon3.4.3-win32
Pip Install--upgrade pip updates the pip in cmd, and then discovers a second problem, a permissions issue, to add owner permissions to the user,
Perform pip install Pillow perfect install Pillow Library
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Collecting Pillow
Downloading PILLOW-3.3.0-CP34-CP34M-WIN32.WHL (1.2MB)
100% |████████████████████████████████| 1.2MB 170kb/s
Installing collected Packages:pillow
Successfully installed Pillow-3.3.0

2.
Permissionerror: [Winerror 5] denied access. --------This is a permissions issue.
In the Python installation directory, right-click Properties, security->user-> Add permissions

Pip Installation Pillow Error Summary in Python under Windows (reprint)