restructure + lecutre 07

lectures/05/number_lines.ml

@@ -0,0 +1,9 @@
+let () =
+  let rec aux acc =
+    try
+      Printf.printf "%5d| %s\n" acc @@ read_line ();
+      aux (acc + 1)
+    with
+    | _ -> ()
+  in
+  aux 1;;