１．例子：
／／註釋：file_path檔案路徑
def traverse_dir(file_path)
if File.directory? file_path
Dir.foreach(file_path) do |file|
if file !=”.” and file !=”..”
traverse_dir(file_path+”/”+file)
end
end
else
puts “File:#{File.basename(file_path)}, Size:#{File.size(file_path)}”
／／註釋：Size可省略
end
end
traverse_dir(‘D:/apache-tomcat’)
／／伺服器地址：＂#{Rails.root}/db/migrate＂
２．實際例子
class SchemaMigration < ActiveRecord::Base
def self.traverse_dir(file_path)
# file_path=”#{Rails.root}/db/migrate”
a=[]
if File.directory? file_path
Dir.foreach(file_path) do |file|
if file !=”.” and file !=”..”
traverse_dir(file_path+”/”+file)
end
end
else
a<<”#{File.basename(file_path)}”
end
b=[]
a.each do |x|
b<