我想通过ftp写一个csv文件。这是我到目前为止：

I am trying to write to a csv file through ftp. Here is what i have so far:

require 'net/ftp'
require 'csv'

users = User.users.limit(5)

csv_string = CSV.generate do |csv|
  csv << ["email_addr", "first_name", "last_name"]

  users.each do |user|
    new_line = [user.email, user.first_name, user.last_name]
    csv << new_line
  end
end

csv_file = CSV.new(csv_string)

ftp = Net::FTP.new('**SERVER NAME**')
ftp.login(user = "**USERNAME**", passwd = "**PASSWORD**")
ftp.storbinary('STOR ' + 'my_file.csv', csv_file)
ftp.quit()

我得到错误的参数数for 3）。当我将行更改为ftp.storbinary（'STOR'+'my_file.csv'，csv_file，1024）它说错误的参数数量（1为0）。我也试过使用storlines，但是给了我错误。有人对如何处理这个问题有任何想法吗？

I get the error "wrong number of arguments (2 for 3)". When i change the line to ftp.storbinary('STOR ' + 'my_file.csv', csv_file, 1024) it says "wrong number of arguments (1 for 0)". I've also tried using storlines instead, but that gave me errors also. Does anybody have any ideas on how to handle this?