参考:https://webpack.js.org/guides/development/
Adjusting Your Text Editor
Some text editors have a "safe write" feature and enable this by default. As a result, saving a file will not always result in a recompile.
Each editor has a different way of disabling this. For the most common ones:
Sublime Text 3 - Add "atomic_save": false to your user preferences.
IntelliJ - use search in the preferences to find "safe write" and disable it.
Vim - add :set backupcopy=yes in your settings.
WebStorm - uncheck Use "safe write" in Preferences > Appearance & Behavior > System Settings