Ruby writes a script that scans all URLs of the current page

A script that scans all URLs in the current page, written in Ruby, is a good example of learning Ruby's friends.

#scanweb.rb
#用法ruby scanweb.rb www.jb51.net　将当前结果保存在c:\1.txt
require 'net/http'
filename= File.new('c:\1.txt',"w+")
if $*[0]==nil
puts "hehe,没有输入网址"
else
h = Net::HTTP.new($*[0], 80)
resp, data = h.get('/index.html', nil)
if resp.message == "OK"
data.scan(/<a href="(.*?)"/).each do |x|
puts x
filename.puts x
end
end
end
#无聊，有vbs、php、ruby版了，好像ruby比vbs快，与php不相上下。
=begin
修改一下
require 'net/http'
filename= File.new('1.txt',"w+")
if $*[0]==nil
abort "用法示例：ruby #$0 www.sohu.com　，结果放在当前目录1.txt"
end
h = Net::HTTP.new($*[0], 80)
resp, data = h.get('/index.html', nil)
if resp.message == "OK"
data.scan(/<a href="(.*?)"/).each do |x|
puts x
filename.puts x
end
end
=end