Ruby Option解析器
发布时间:2020-12-17 03:48:32 所属栏目:百科 来源:网络整理
导读:我正在通过引用 this和 this来学习ruby中的选项解析.这是我的测试代码: #!/usr/bin/rubyrequire "optparse"options = {}optparse = OptionParser.new do |opts| opts.banner = "Learning Option parsing in Ruby" opts.on("-i","--ipaddress","IP address o
我正在通过引用
this和
this来学习ruby中的选项解析.这是我的测试代码:
#!/usr/bin/ruby require "optparse" options = {} optparse = OptionParser.new do |opts| opts.banner = "Learning Option parsing in Ruby" opts.on("-i","--ipaddress","IP address of the server") do |ipaddr| options[:ipaddress] = ipaddr end opts.on("-u","--username","username to log in") do |user| options[:username] = user end opts.on("-p","--password","password of the user") do |pass| options[:password] = pass end end optparse.parse! puts "the IPaddress is #{options[:ipaddress]}" if options[:ipaddress] puts "the username is #{options[:username]}" if options[:username] puts "the password is #{options[:password]}" if options[:password] 我的目的是打印我传递给脚本的opton.但是,它不打印我通过的选项,而只是说是真的: # ruby getops.rb --ipaddress 1.1.1.1 the IPaddress is true # ruby getops.rb --username user1 the username is true # ruby getops.rb --password secret the password is true 我哪里错了?我尝试了短期选项,但结果是一样的. 解决方法# Mandatory argument. opts.on("-r","--require LIBRARY","Require the LIBRARY before executing your script") do |lib| options.library << lib end 我发现你的第一个链接.注意“–require LIBRARY”. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |