Recently, when I was trying to install a plug-in in Notepad++, I found that there was no plugin manager in Notepad++. I searched online for a long time and tried many methods but failed, but this method is the only one that works. Now the problem has been solved, I will post the method to avoid encountering again in the future:

Download the PM from https://github.com/bruderstein/nppPluginManager/releases (current 1.4.9)
The open np++ & amp; gt; settings & gt; import & gt; import plugin(s)
Working with np++ v7.5.1 (64-bit)

 
It’s as simple as downloading nppPluginManager on github and importing it to notepad++, or simply copying the contents of the two downloaded folders into the corresponding two files in your notepad++ installation directory. My two directories are: C:\Program Files\Notepad++\plugins and C:\Program Files\Notepad++\updater
 
Later discovered that in fact need not so trouble, notepad + + installing plug-ins can need not the plug-in manager, recommend a site: https://sourceforge.net/projects/npp-plugins/files/, download after good plug-in directly into C: \ Program Files \ notepad + + \ plugins directory.
 
Reference:
https://www.yuque.com/docs/share/b7f935f6-457c-43cd-b499-51c2894c07c4