bundle exec rails c -s

就是这样.

$bundle exec rails c --help
Usage: console [environment] [options]
    -s,--sandBox                    Rollback database modifications on exit.
        --debugger                   Enable ruby-debugging for the console.
        --irb                        DEPRECATED: Invoke `/your/choice/of/ruby script/rails console` instead

这很简单,但有时,如果您不使用bundle exec运行rails可执行文件,则可能导致错误或可能导致错误.为了避免这种情况,总是使用bundle exec.

引用bundler page(如果没有文档)：

In some cases,running executables without bundle exec may work,if
the executable happens to be installed in your system and does not
pull in any gems that conflict with your bundle.

However,this is unreliable and is the source of considerable pain. Even if it looks like it works,it may not work in the future or on another machine.