在 Ruby 中查找文件的最大行长度

问题

你打算查找文本文件中最长行的长度。

解决方案

你可以使用此简单的 Ruby 脚本作为模板：

max_line_length.rb

#!/usr/bin/env ruby
maxLength = 0
numLines = 0
#遍历 STDIN 中的每一行
STDIN.read.split("\n").each do |line|
    if line.length() > maxLength
        maxLength = line.length()
    end
    numLines += 1
end
#打印我们计算的结果
puts "Maximum line length: #{maxLength} in #{numLines} lines"

#!/usr/bin/env ruby
maxLength = 0
numLines = 0
#遍历 STDIN 中的每一行
STDIN.read.split("\n").each do |line|
    if line.length() > maxLength
        maxLength = line.length()
    end
    numLines += 1
end
#打印我们计算的结果
puts "Maximum line length: #{maxLength} in #{numLines} lines"

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