Ruby文件操作

常规处理：

File.open("sampel.txt") do |file|
  file.each_line do |line|
    print line
  end
end

 上式与下式等价

file = File.open("sample.txt")
begin
  file.each_line do |line|
      print line 
  end
ensure
  file.close  
end

 

转载于:https://www.cnblogs.com/liuyang92/p/5898243.html