12846件ヒット
[1-100件を表示]
(0.153秒)
ライブラリ
- ビルトイン (6968)
- abbrev (12)
- benchmark (108)
- bigdecimal (616)
-
bigdecimal
/ util (24) -
cgi
/ core (24) - continuation (24)
- csv (288)
- date (12)
- dbm (96)
- drb (12)
- fiddle (36)
- gdbm (108)
-
io
/ console (48) -
io
/ nonblock (36) - ipaddr (24)
-
irb
/ cmd / chws (24) -
irb
/ cmd / subirb (36) -
irb
/ context (12) -
irb
/ output-method (36) - json (24)
- kconv (48)
- mathn (4)
- matrix (587)
-
minitest
/ mock (1) -
mutex
_ m (96) -
net
/ http (12) -
net
/ pop (24) - open-uri (36)
- openssl (540)
- optparse (204)
- ostruct (77)
- pathname (447)
- pp (24)
- prettyprint (12)
- prime (72)
- psych (60)
- rake (108)
-
rake
/ packagetask (12) -
rake
/ rdoctask (12) -
rdoc
/ code _ object (108) -
rdoc
/ text (12) -
rexml
/ document (528) - ripper (12)
-
ripper
/ filter (12) -
rubygems
/ dependency (24) -
rubygems
/ package / tar _ output (12) -
rubygems
/ package / tar _ writer (60) -
rubygems
/ source _ index (24) -
rubygems
/ version (24) - sdbm (144)
- set (81)
- shell (18)
-
shell
/ command-processor (12) -
shell
/ filter (12) - socket (104)
- stringio (205)
- strscan (72)
- sync (24)
-
syslog
/ logger (12) - thread (6)
- time (24)
- uri (72)
-
webrick
/ httpservlet / prochandler (12) -
webrick
/ httputils (24) -
webrick
/ server (24) -
win32
/ registry (12) - win32ole (132)
-
yaml
/ dbm (24) - zlib (72)
クラス
-
ARGF
. class (348) - Array (760)
- BasicObject (84)
-
Benchmark
:: Job (24) -
Benchmark
:: Tms (84) - BigDecimal (616)
- Bignum (12)
- Binding (30)
- CSV (108)
-
CSV
:: Row (48) -
CSV
:: Table (108) - Class (12)
- Complex (78)
- Continuation (24)
- DBM (96)
-
DRb
:: DRbUnknown (12) - Data (18)
- Date (12)
- Dir (81)
- Enumerator (60)
-
Enumerator
:: ArithmeticSequence (14) -
Enumerator
:: Chain (14) - Exception (48)
- Fiber (30)
-
Fiddle
:: Handle (36) -
File
:: Stat (12) - Fixnum (15)
- Float (12)
- FrozenError (6)
- GDBM (108)
-
Gem
:: Dependency (24) -
Gem
:: Package :: TarOutput (12) -
Gem
:: Package :: TarWriter (60) -
Gem
:: SourceIndex (24) -
Gem
:: Version (24) - Hash (553)
- IO (528)
- IPAddr (24)
-
IRB
:: Context (12) -
IRB
:: ExtendCommand :: ChangeWorkspace (12) -
IRB
:: ExtendCommand :: CurrentWorkingWorkspace (12) -
IRB
:: ExtendCommand :: Foreground (12) -
IRB
:: ExtendCommand :: IrbCommand (12) -
IRB
:: ExtendCommand :: Kill (12) -
IRB
:: OutputMethod (36) - Integer (203)
-
JSON
:: State (24) - MatchData (108)
- Matrix (355)
-
Matrix
:: LUPDecomposition (12) - Method (139)
-
MiniTest
:: Mock (1) - Module (419)
- Mutex (6)
- NameError (20)
-
Net
:: HTTP (12) -
Net
:: POP3 (24) - Numeric (371)
- Object (330)
-
OpenSSL
:: ASN1 :: Constructive (12) -
OpenSSL
:: BN (60) -
OpenSSL
:: Cipher (60) -
OpenSSL
:: Config (12) -
OpenSSL
:: Engine (12) -
OpenSSL
:: HMAC (36) -
OpenSSL
:: Netscape :: SPKI (12) -
OpenSSL
:: OCSP :: BasicResponse (36) -
OpenSSL
:: OCSP :: Request (36) -
OpenSSL
:: PKCS7 (48) -
OpenSSL
:: PKey :: EC (12) -
OpenSSL
:: PKey :: EC :: Group (12) -
OpenSSL
:: PKey :: EC :: Point (36) -
OpenSSL
:: SSL :: SSLContext (12) -
OpenSSL
:: SSL :: SSLSocket (48) -
OpenSSL
:: X509 :: CRL (12) -
OpenSSL
:: X509 :: Certificate (24) -
OpenSSL
:: X509 :: Request (12) -
OpenSSL
:: X509 :: Store (24) -
OpenSSL
:: X509 :: StoreContext (12) - OpenStruct (77)
- OptionParser (168)
-
OptionParser
:: ParseError (12) - Pathname (447)
- PrettyPrint (12)
-
Prime
:: PseudoPrimeGenerator (72) - Proc (62)
-
Process
:: Status (36) -
Psych
:: Nodes :: Node (24) -
Psych
:: Parser (12) -
Psych
:: Stream (24) -
RDoc
:: CodeObject (108) -
REXML
:: AttlistDecl (12) -
REXML
:: Attribute (36) -
REXML
:: Attributes (24) -
REXML
:: CData (12) -
REXML
:: Child (60) -
REXML
:: DocType (12) -
REXML
:: Document (12) -
REXML
:: Element (132) -
REXML
:: ExternalEntity (12) -
REXML
:: Instruction (24) -
REXML
:: NotationDecl (24) -
REXML
:: Parent (84) -
REXML
:: Text (12) -
REXML
:: XMLDecl (24) -
Rake
:: FileList (60) -
Rake
:: PackageTask (12) -
Rake
:: RDocTask (12) -
Rake
:: Task (48) - Random (36)
- Range (115)
- Rational (40)
- Ripper (12)
-
Ripper
:: Filter (12) -
RubyVM
:: AbstractSyntaxTree :: Node (49) -
RubyVM
:: InstructionSequence (120) - SDBM (144)
- Set (108)
- Shell (18)
-
Shell
:: CommandProcessor (12) -
Shell
:: Filter (12) - SignalException (24)
-
Socket
:: Ifaddr (104) - String (1167)
- StringIO (205)
- StringScanner (72)
- Struct (155)
- Symbol (213)
-
Syslog
:: Logger (12) - Thread (96)
-
Thread
:: Backtrace :: Location (72) -
Thread
:: ConditionVariable (36) -
Thread
:: Mutex (30) -
Thread
:: Queue (10) -
Thread
:: SizedQueue (10) - ThreadGroup (12)
- Time (79)
- TracePoint (96)
-
URI
:: Generic (72) - UnboundMethod (59)
- UncaughtThrowError (11)
- Vector (220)
-
WEBrick
:: GenericServer (24) -
WEBrick
:: HTTPServlet :: ProcHandler (12) -
WEBrick
:: HTTPUtils :: FormData (24) - WIN32OLE (12)
-
WIN32OLE
_ TYPE (72) -
WIN32OLE
_ VARIANT (48) -
Win32
:: Registry (12) -
YAML
:: DBM (24) -
Zlib
:: GzipFile :: Error (12) -
Zlib
:: GzipReader (48) -
Zlib
:: GzipWriter (12)
モジュール
-
CGI
:: QueryExtension :: Value (24) - Comparable (27)
- Enumerable (337)
-
Mutex
_ m (96) -
OpenURI
:: OpenRead (36) -
OptionParser
:: Arguable (24) -
RDoc
:: Text (12) -
REXML
:: Namespace (12) -
REXML
:: Node (36) -
Sync
_ m (24)
キーワード
- ! (12)
- != (12)
- !~ (12)
- % (50)
- & (12)
- * (72)
- ** (28)
- + (48)
- +@ (36)
- - (60)
- -@ (36)
-
/ (72) - < (28)
- << (110)
- <= (22)
- <=> (66)
- == (84)
- === (20)
- =~ (12)
- > (22)
- >= (22)
- >> (26)
- [] (180)
- []= (103)
-
_ dump (12) - abbrev (12)
- abs (24)
- abs2 (12)
-
absolute
_ path (24) - accept (12)
-
accept
_ nonblock (12) - add (36)
- add! (12)
-
add
_ cert (12) -
add
_ certid (12) -
add
_ certificate (12) -
add
_ crl (24) -
add
_ file (24) -
add
_ file _ simple (24) -
add
_ gem _ contents (12) -
add
_ namespace (24) -
add
_ nonce (24) -
add
_ recipient (12) -
add
_ row (12) -
add
_ signer (12) -
add
_ status (12) - addr (12)
-
alias
_ method (8) -
angle
_ with (12) -
append
_ as _ bytes (1) -
append
_ data (12) -
append
_ features (12) - ascend (24)
- autoload (12)
-
backtrace
_ locations (24) -
base
_ label (24) - basename (12)
- between? (12)
- bind (12)
-
bind
_ call (12) - binmode (36)
- blockdev? (12)
- broadaddr (12)
- broadcast (12)
- bsearch (24)
-
bsearch
_ index (20) -
by
_ col! (12) -
by
_ col _ or _ row! (12) -
by
_ row! (12) - bytes (35)
- bytesplice (10)
- call (36)
- capitalize (12)
- capitalize! (12)
- casecmp (12)
- casecmp? (9)
- cause (12)
- cd (6)
- ceil (36)
- ceildiv (3)
- center (12)
- chardev? (12)
- chars (66)
- chdir (6)
- children (26)
- chmod (12)
- chomp (12)
- chomp! (12)
- chop! (12)
- chown (12)
- chr (36)
-
chunk
_ while (12) - clamp (15)
- class (12)
-
class
_ eval (24) -
class
_ exec (12) - cleanup (12)
- clear (108)
-
clear
_ actions (12) -
clear
_ bit! (12) -
clear
_ exclude (12) -
clear
_ prerequisites (12) - clone (128)
- close (44)
-
close
_ enabled? (12) -
close
_ on _ exec= (12) - closed? (12)
- codepoints (66)
- coerce (84)
- collect! (64)
- column (48)
- combination (24)
- combine (8)
- compact (25)
- compact! (21)
-
compare
_ by _ identity (12) - component (12)
- concat (54)
- configure (12)
- conj (12)
- conjugate (12)
- connect (12)
-
connect
_ nonblock (12) -
const
_ added (3) - cooked (12)
- cooked! (12)
- copy (12)
- count (12)
- covector (12)
- cover? (14)
- create (12)
- cross (12)
-
cross
_ product (12) - crypt (12)
- ctime (12)
-
ctrl
_ cmd (12) - curry (22)
- deconstruct (3)
-
deconstruct
_ keys (9) - decrypt (24)
- default (24)
-
default
_ event _ sources (12) -
default
_ ole _ types (12) -
default
_ port (12) - define (24)
-
define
_ singleton _ method (24) -
defined
_ class (12) - delete (24)
- delete! (12)
-
delete
_ if (96) -
delete
_ namespace (12) -
deprecate
_ constant (12) - descend (24)
- difference (7)
- dig (40)
- directory? (12)
- disable (24)
-
disable
_ close (12) - disasm (12)
- disassemble (12)
- display (12)
- div (36)
- divmod (54)
- document (12)
-
document
_ children (12) -
document
_ children= (12) -
document
_ self (12) -
document
_ self= (12) - downcase (12)
- downcase! (12)
- dstaddr (12)
- dup (32)
- each (566)
- each2 (24)
-
each
_ byte (96) -
each
_ char (96) -
each
_ child (38) -
each
_ codepoint (96) -
each
_ cons (8) -
each
_ entry (39) -
each
_ filename (12) -
each
_ grapheme _ cluster (16) -
each
_ index (24) -
each
_ key (60) -
each
_ line (216) -
each
_ pair (108) -
each
_ recursive (12) -
each
_ slice (8) -
each
_ value (60) -
each
_ with _ index (72) - eigen (12)
- eigensystem (12)
- element= (12)
- enable (24)
-
enable
_ close (12) - enabled? (12)
- enclose (12)
- encode (36)
- encode! (24)
- encrypt (24)
- enhance (12)
- entries (19)
-
enum
_ for (24) - eql? (48)
- equal? (36)
- eval (24)
- exception (36)
- exclude (12)
- executable? (12)
-
executable
_ real? (12) - execute (60)
- exit (12)
- expect (1)
- exponent (12)
- extend (12)
-
extend
_ object (12) - extended (12)
- fdiv (54)
-
fetch
_ values (22) - fill (72)
- filter! (28)
- find (24)
-
find
_ first _ recursive (12) -
find
_ proxy (12) - finite? (21)
- first (12)
-
first
_ column (7) -
first
_ lineno (19) -
first
_ minor (12) - fix (12)
- flags (12)
- floor (28)
- flush (24)
-
flush
_ sessions (12) - fnmatch (12)
- fnmatch? (12)
-
force
_ encoding (12) - format (12)
- frac (12)
- freeze (24)
- gcd (12)
- gcdlcm (12)
-
generate
_ key (12) -
get
_ instance (12) - getbyte (12)
- getc (12)
-
grapheme
_ clusters (16) - group (12)
- gsub! (60)
-
has
_ elements? (12) -
has
_ name? (12) - hash (84)
- hstack (12)
- i (12)
- ifindex (12)
-
implemented
_ ole _ types (12) - include (24)
- include? (12)
- included (12)
-
included
_ modules (12) - independent? (12)
-
index
_ in _ parent (12) - infinite? (21)
- inherited (12)
-
initialize
_ copy (12) - inject (36)
-
insert
_ after (12) -
insert
_ before (12) - inspect (179)
-
instance
_ eval (24) -
instance
_ exec (12) -
instance
_ method (12) - intersect? (12)
- invert! (12)
- iseuc (12)
- item (12)
- itself (12)
- kconv (12)
-
keep
_ if (48) - kill (12)
- label (24)
- last (12)
-
last
_ column (7) -
last
_ lineno (7) - lchmod (12)
- lchown (12)
- lcm (12)
- length (12)
- level (12)
- lineno (12)
- lines (116)
-
load
_ gems _ in (12) -
local
_ variables (10) - localtime (24)
- lock (30)
- locked? (12)
- lup (12)
-
lup
_ decomposition (12) - magnitude (12)
- main (12)
-
make
_ affine! (12) - map! (64)
- markup (12)
-
marshal
_ load (12) -
mask
_ bits! (12) - match (36)
- match? (18)
-
max
_ by (48) - merge (36)
- merge! (36)
- minor (24)
- mkdir (12)
-
mod
_ inverse (12) -
module
_ eval (24) -
module
_ exec (12) - modulo (24)
-
mu
_ lock (12) -
mu
_ locked? (12) -
mu
_ synchronize (12) -
mu
_ try _ lock (12) - mult (12)
- name (12)
- names (12)
- namespace (12)
- namespaces (24)
- nan? (12)
- native (12)
- negative? (10)
- netmask (12)
- next (12)
-
next
_ sibling= (12) - noecho (12)
- nonblock (12)
- nonblock= (12)
- nonblock? (12)
- nonzero? (24)
- offset (24)
- on (144)
-
on
_ head (12) -
on
_ tail (12) - open (36)
- overlap? (2)
- parent= (12)
-
parent
_ file _ name (12) -
parent
_ name (12) - parse (12)
-
parse
_ csv (12) - parser (12)
- path (24)
- permutation (24)
- polar (12)
- pos= (12)
- positive? (10)
- pow (12)
- power (24)
- pp (12)
- ppx (12)
- precs (12)
- prefixes (12)
- prepend (12)
-
prepend
_ features (12) - prepended (12)
-
pretty
_ inspect (12) -
pretty
_ print (12) -
previous
_ sibling= (12) - printf (12)
-
private
_ class _ method (24) -
private
_ constant (12) - product (24)
- public (48)
-
public
_ class _ method (24) -
public
_ constant (12) -
public
_ instance _ method (12) - push (36)
- putc (12)
- puts (24)
- quo (24)
- raise (18)
- rand (36)
- rationalize (12)
- raw (12)
- read (24)
- readlines (12)
- realpath (24)
- receiver (27)
- recover (12)
- rect (12)
- rectangular (12)
- reduce (36)
- refresh! (12)
- reject (60)
- reject! (96)
-
relative
_ path _ from (12) - release (12)
- remainder (36)
- remove (12)
-
remove
_ method (12) -
remove
_ methods _ etc (12) - reopen (12)
-
repeated
_ combination (24) - replace (96)
-
replace
_ child (12) -
replace
_ with (12) - report (12)
- reset (36)
- resume (12)
-
reverse
_ each (52) - rewind (7)
- rfc2822 (12)
- rfc822 (12)
- rindex (12)
-
root
_ node (12) - rotate! (12)
- round (4)
- row (24)
- run (12)
- sample (48)
- scan (24)
- scrub (36)
- scrub! (36)
- seek (12)
- select! (60)
-
set
_ encoding (108) -
set
_ generator (12) -
set
_ to _ infinity! (12) - shift (12)
- shuffle! (24)
- sign (72)
- signal (12)
- signm (12)
- signo (12)
-
singleton
_ class? (12) -
singleton
_ methods (12) - size (24)
- skip (12)
- slice (132)
-
slice
_ when (12) - socket? (12)
- solve (12)
- sort (24)
- sort! (24)
-
sort
_ by (24) -
sort
_ by! (24) -
source
_ location (7) -
source
_ ole _ types (12) - split (14)
- sqrt (12)
- squeeze! (12)
-
src
_ type (12) - start (60)
-
start
_ doc (12) - step (124)
- sticky? (12)
-
stop
_ doc (12) - sub (36)
- sub! (36)
- subtract (12)
- succ (46)
- succ! (12)
- sum (24)
-
super
_ method (22) - swapcase (12)
- swapcase! (12)
- sync (12)
-
sync
_ lock (6) -
sync
_ unlock (6) - synchronize (24)
- t (12)
- taint (9)
- tally (10)
- tap (12)
- terminate (24)
- then (14)
-
to
_ a (31) -
to
_ bn (12) -
to
_ c (24) -
to
_ csv (12) -
to
_ d (24) -
to
_ enum (24) -
to
_ f (24) -
to
_ h (101) -
to
_ hash (12) -
to
_ i (12) -
to
_ int (24) -
to
_ io (12) -
to
_ proc (46) -
to
_ r (12) -
to
_ range (12) -
to
_ s (116) - toeuc (12)
- tokens (12)
- tolocale (12)
- tr! (12)
-
tr
_ s! (12) - transact (18)
-
transform
_ keys! (20) -
transform
_ values! (18) - transpose (12)
- truncate (24)
- trust (9)
-
try
_ lock (12) - type (7)
- unbind (12)
-
undef
_ method (12) -
unicode
_ normalize (11) -
unicode
_ normalize! (11) -
unicode
_ normalized? (11) - union (7)
- unlink (6)
- unlock (18)
- unscan (12)
- unshift (12)
- untaint (9)
- untrust (9)
- upcase (12)
- upcase! (12)
- update (60)
- upto (12)
- utc (12)
- utc? (12)
- utime (12)
- value (12)
- value= (12)
- vartype (12)
- verify (12)
- vhid (8)
- vstack (12)
- wait (12)
- wakeup (12)
- whitespace (12)
-
with
_ index (24) - write (48)
-
yield
_ self (16) - zero? (12)
- zip (48)
検索結果
先頭5件
-
TracePoint
# self -> object (21226.0) -
イベントを発生させたオブジェクトを返します。
...イベントを発生させたオブジェクトを返します。
以下のようにする事で同じ値を取得できます。
//emlist[例][ruby]{
trace.binding.eval('self')
//}
@see TracePoint#binding......返します。
以下のようにする事で同じ値を取得できます。
なお、self メソッドは binding が nil になる :c_call および :c_return イベントに対しても正しく動作します。
//emlist[例][ruby]{
trace.binding.eval('self')
//}
@see TracePoint#binding... -
IO
# each _ char {|c| . . . } -> self (12349.0) -
self に含まれる文字を一文字ずつブロックに渡して評価します。
...
self に含まれる文字を一文字ずつブロックに渡して評価します。
self は読み込み用にオープンされていなければなりません。
ブロックを省略した場合は各文字について繰り返す Enumerator を返します。
@raise IOError self が読......み込み用にオープンされていない場合に発生します。
f = File.new("testfile")
f.each_char {|c| print c, ' ' } #=> #<File:testfile>... -
Dir
# each _ child {|item| . . . } -> self (12314.0) -
ディレクトリの "." と ".." をのぞく各エントリを表す文字列を引数として、 ブロックを評価します。
...合、各エントリを文字列として保持する
Enumerator
オブジェクトを返します。
@raise IOError 既に self が close している場合に発生します。
//emlist[例][ruby]{
Dir.open('.').each_child{|f|
p f
}
#=> "bar"
# "foo"
//}
@see Dir#each
@see Dir.each_child... -
String
# each _ char {|cstr| block } -> self (12314.0) -
文字列の各文字に対して繰り返します。
...文字列の各文字に対して繰り返します。
たとえば、
//emlist[][ruby]{
"hello世界".each_char {|c| print c, ' ' }
//}
は次のように出力されます。
h e l l o 世 界
@see String#chars... -
StringIO
# each _ char {|c| . . . } -> self (12303.0) -
自身に含まれる文字を一文字ずつブロックに渡して評価します。
...自身に含まれる文字を一文字ずつブロックに渡して評価します。
自身は読み込み用にオープンされていなければなりません。
@raise IOError 自身が読み込み用にオープンされていない場合に発生します。
@see IO#each_char... -
Rake
:: FileList # clear _ exclude -> self (12302.0) -
登録されている除外リストをクリアします。
...する
task default: :test_rake_app
task :test_rake_app do
file_list = FileList.new("test.rb", "test.bak")
file_list.exclude("test.rb")
# DEFAULT_IGNORE_PATTERNS と "test.rb" の双方の除外がクリアされる
file_list.clear_exclude
file_list # => ["test.rb", "test.bak"]
end
//}... -
IO
# each _ char -> Enumerator (12249.0) -
self に含まれる文字を一文字ずつブロックに渡して評価します。
...
self に含まれる文字を一文字ずつブロックに渡して評価します。
self は読み込み用にオープンされていなければなりません。
ブロックを省略した場合は各文字について繰り返す Enumerator を返します。
@raise IOError self が読......み込み用にオープンされていない場合に発生します。
f = File.new("testfile")
f.each_char {|c| print c, ' ' } #=> #<File:testfile>... -
Pathname
# each _ child(with _ directory = true) -> Enumerator (12217.0) -
self.children(with_directory).each と同じです。
...
self.children(with_directory).each と同じです。
@param with_directory 偽を指定するとファイル名のみ返します。デフォルトは真です。
//emlist[例][ruby]{
require "pathname"
Pathname("/usr/local").each_child {|f| p f }
# => #<Pathname:/usr/local/bin>
# => #<Pathname......:/usr/local/etc>
# => #<Pathname:/usr/local/include>
# => #<Pathname:/usr/local/lib>
# => #<Pathname:/usr/local/opt>
# => #<Pathname:/usr/local/sbin>
# => #<Pathname:/usr/local/share>
# => #<Pathname:/usr/local/var>
Pathname("/usr/local").each_child(false) {|f| p f }
# => #<Pathname:bin>
# => #<Pat......hname:etc>
# => #<Pathname:include>
# => #<Pathname:lib>
# => #<Pathname:opt>
# => #<Pathname:sbin>
# => #<Pathname:share>
# => #<Pathname:var>
//}
@see Pathname#children... -
Pathname
# each _ child(with _ directory = true) {|pathname| . . . } -> [Pathname] (12217.0) -
self.children(with_directory).each と同じです。
...
self.children(with_directory).each と同じです。
@param with_directory 偽を指定するとファイル名のみ返します。デフォルトは真です。
//emlist[例][ruby]{
require "pathname"
Pathname("/usr/local").each_child {|f| p f }
# => #<Pathname:/usr/local/bin>
# => #<Pathname......:/usr/local/etc>
# => #<Pathname:/usr/local/include>
# => #<Pathname:/usr/local/lib>
# => #<Pathname:/usr/local/opt>
# => #<Pathname:/usr/local/sbin>
# => #<Pathname:/usr/local/share>
# => #<Pathname:/usr/local/var>
Pathname("/usr/local").each_child(false) {|f| p f }
# => #<Pathname:bin>
# => #<Pat......hname:etc>
# => #<Pathname:include>
# => #<Pathname:lib>
# => #<Pathname:opt>
# => #<Pathname:sbin>
# => #<Pathname:share>
# => #<Pathname:var>
//}
@see Pathname#children... -
Dir
# each _ child -> Enumerator (12214.0) -
ディレクトリの "." と ".." をのぞく各エントリを表す文字列を引数として、 ブロックを評価します。
...合、各エントリを文字列として保持する
Enumerator
オブジェクトを返します。
@raise IOError 既に self が close している場合に発生します。
//emlist[例][ruby]{
Dir.open('.').each_child{|f|
p f
}
#=> "bar"
# "foo"
//}
@see Dir#each
@see Dir.each_child...