我想读到一个档案,并显示它的规模。 页: 1 并改变我投入文件的规模。 因此,现在的日志。 每一艘船都有拖拉机。 什么进展?
logfile = open(input_fspec)
puts "logfile size: #{logfile.count} lines"
<代码>s将读到输入中的所有线,以便进行计票。 请再次读到这些行文(例如,使用<条码>><>>>>>/代码>或<条码>each)。 然后,您需要打上<代码>logfile.rewind,以便重新开始档案。
事实上,<代码>上<>s/code>正在实际返回的是尚未读到的线数。 例如,如果你已经通过卷宗读到,然后打电话到count<>/code>,那么就会回去0。
否则,你就可以这样做,甚至听任:
File.size("input_fspec")
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