BlogJava-夸父追日-文章分类-rubyhttp://www.blogjava.net/quaff/category/11354.html飞蛾扑火zh-cnThu, 01 Mar 2007 19:25:16 GMTThu, 01 Mar 2007 19:25:16 GMT60Array.injecthttp://www.blogjava.net/quaff/articles/47278.htmlquaffquaffSun, 21 May 2006 04:51:00 GMThttp://www.blogjava.net/quaff/articles/47278.htmlhttp://www.blogjava.net/quaff/comments/47278.htmlhttp://www.blogjava.net/quaff/articles/47278.html#Feedback0http://www.blogjava.net/quaff/comments/commentRss/47278.htmlhttp://www.blogjava.net/quaff/services/trackbacks/47278.htmlclass Array
def inject(n,&f)
each{|i| n=f.call(n,i)}
n
end
end

puts (1..5).to_a.inject(1){|n,i| n*i}
puts (1..5).to_a.inject(0){|n,i| n+i}



quaff 2006-05-21 12:51 发表评论
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