Installing Arc on OS X
问题 When I tried the instructions at https://arclanguage.github.io/, after I entered "racket -f as.scm" I got "-bash: racket: command not found". I also tried these instructions for downloading Arc on Linux: https://sites.google.com/site/arclanguagewiki/getting-started/install-arc I installed racket from download.racket-lang.org, and when I got to "./arc" in the Arc/Nu section, the output from the terminal was "env: racket: No such file or directory". The Arc Language Wiki (linked to above)