问题
Everytime I use these keys in the interpreter I keep getting symbols like this appearing:
[[D^[[C
I'm using Linux Mint 12 in ZSH, however I'm getting the same result in Ubuntu with bash. Also, same thing in ssh.
回答1:
The stock OCaml toplevel doesn't have line editing built in. I use rlwrap:
$ cat bin/ocaml
#!/bin/sh
exec rlwrap /usr/local/bin/ocaml "$@"
Using the toplevel without something like this is quite painful, in my opinion!
Other possibilities are to run the toplevel under emacs (a popular choice, I think), or to use utop. I haven't used utop, but it sounds cool.
回答2:
Another option is to use:
ledit ocaml
Although I prefer utop over anything else myself.
来源：https://stackoverflow.com/questions/13225070/is-it-possible-to-use-arrow-keys-in-ocaml-interpreter