Range

$BHO0O%*%V%8%'%/%H$N%/%i%9!%HO0O%*%V%8%'%/%H$OHO0O1i;;;R(B (..$B$^$?$O(B...)$B$K$h$C$F@8(B $B@.$5$l$^$9!%(B ..$B1i;;;R$K$h$C$F@8@.$5$l$?HO0O%*%V%8%'%/%H$O(B $B=*E@$r4^$_!$(B...$B1i;;;R$K$h$C$F@8@.$5$l$?(B $BHO0O%*%V%8%'%/%H$O=*E@$r4^$_$^$;$s!%(B

$BNc(B:

for i in 1..5
  ...
end

$B$3$l$O(B1$B$+$i(B5$B$^$G$NHO0O%*%V%8%'%/%H$r@8@.$7$F!$$=$l$>$l$NCM$K(B $BBP$7$F7+$jJV$9$H8@$&0UL#$G$9!%(B

$BHO0O1i;;;R$N%*%Z%i%s%I$O8_$$$K(B <=> $B$GHf3S$G$-$kI,MW$,$"$j$^$9!%(B $B$5$i$K(Beach$B$rsucc$B%a%=%C%I$r

$BHO0O$ON>C<$r4^$_$^$9!%(B

$B%9!<%Q!<%/%i%9(B:

Object

$B%$%s%/%k!<%I$7$F$$$k%b%8%e!<%k(B:

Enumerable

$B%/%i%9%a%=%C%I(B:

new(first,last[, exclude_end])

first$B$+$i(Blast$B$^$G$NHO0O%*%V%8%'%/%H$r(B $B@8@.$7$^$9!%(Bexclude_end$B$O=*C<$r4^$`$+$I$&$+$r;XDj$7$^$9!%(B $B>JN,;~$K$O=*C<$r4^$_$^$9!%(B

$B%a%=%C%I(B:

self === other

$B$3$N%a%=%C%I$Ocase $BJ8$G$NHf3S$KMQ$$$i$l$^$9!#(B other$B$,HO0OFb$K4^$^$l$F$$$k;~$K??$rJV$7$^$9!%(B

each {|item| ...}

$BHO0OFb$NMWAG$KBP$7$F7+$jJV$7$^$9!%(B

exclude_end?

$BHO0O%*%V%8%'%/%H$,=*C<$r4^$^$J$$$H$-??$rJV$7$^$9!%(B

first

begin

$B:G=i$NMWAG$rJV$7$^$9!%(B

length

size

$BHO0O$ND9$5(B(last - first + 1)$B$rJV$7$^$9!%(B

last

end

$B:G8e$NMWAG$rJV$7$^$9!%(B

matz@netlab.co.jp