type=class
superclass=Object
included=Enumerable
extended=
library=_builtin

ϰϥ֥ȤΥ饹ϰϥ֥Ȥϰϱ黻 .. ޤ
... ˤäޤ.. 黻Ҥˤä줿ϰ
֥ȤϽüޤߡ... 黻Ҥˤä줿ϰϥ֥
ȤϽüޤߤޤ

=== 

  for i in 1..5
     # 
  end

 1  5 ޤǤϰϥ֥Ȥơ줾ͤФ
֤ȸ̣Ǥ

ϰϱ黻ҤΥڥɤϸߤ <=> ӤǤɬפޤ
 [[m:Range#each]] ¹Ԥ뤿ˤ succ ᥽
ɤ¹ԤǤΤǤʤФޤ

=== ˲Ūѹ

Ruby  Range 饹 immutable Ǥ
Ĥޤꡢ֥ȼΤ˲Ūѹ뤳ȤϤǤޤ
ǤΤǡ줿 Range Υ֥ȤλؤϰϤ
褷ѹ뤳ȤϤǤޤ

  range = 1..10
  range.first     #=> 1
  range.first = 1 #=> NoMethodError
