ruby去掉文件里重复的行

old=File.open(ARGV[0]).collect
new=File.open(ARGV[1],"a+")
foriin0..old.length-1
new.write(old.uniq[i])
end

##或简单两行也可以如qc.rb

old=File.open(ARGV[0]).collect
putsold.uniq

然后qc.rbdic.dic>new.dic