#关键字
BEGIN
END
alias
and
begin
break
case
class
def
defined?
do
else
elsif
end
ensure
for
if
in
module
next
not
or
redo
rescue
retry
return
self
super
then
undef
unless
until
when
while
yield
#数据类型
true
false
nil
strings
numbers
floats
arrays
hashes
#字符串转义序列
\\
\'
\"
\a
\b
\f
\n
\r
\t
\v
#操作符
+
-
*
**
/
%
.
::
[]
!
<
>
>=
<=
<=>
==
===
!=
&&
||
..
...
@
@@
$