ruby文件从命令行中接收参数(全局变量:ARGV)
下文转自:
http://www.cnblogs.com/watir/archive/2009/04/25/1443440.html
ruby文件从命令行中接收参数
在命令行方法执行ruby文件时,需要从命令行中传入参数,可以使用全局变量:ARGV
如有ruby 文件test.rb,内容如下:
1 def hello(a)
2 puts a
3 end
4
5 hello(ARGV)
这时在命令行中输入:
ruby -w test.rb "hello"
程序输出为:
hello
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