问题
As per How can I use tabs for indentation in IntelliJ IDEA?, I have gone through and set each extension to "Use tab character" as seen below.
It doesn't work though - IntelliJ is still inserting spaces when I hit the tab button. Did I miss something? Where is intelliJ's [Please use tabs like I ef'ing told you to do] button?
(FYI, I'm using IntelliJ Ultimate 2016.2)
This looks promising...
... but apparently it's all lies :(
回答1:
Maybe you have the option Settings->Editor->General->"Allow placement of caret inside tabs" checked.
Deselect it and try again.
回答2:
Go to Settings → Editor → Code Style and deselect ‘Detect and use existing file indents for editing’.
回答3:
If you open up the .editorconfig file, you will see something akin to the following
# editorconfig.org
root = true
[*]
indent_style = spaces
indent_size = 2
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
I changed it to tab and 4, closed the project and reopened it.
I know this is an absurd step to have to take, and have an open bug report with them about it.
来源：https://stackoverflow.com/questions/41810007/why-wont-intellij-use-tabs