[7] pry(main)> cs = CSV.generate do |c|
[7] pry(main)*   for i in users
[7] pry(main)*     c << [i.name, i.boy ? '男' : '女', i.gem, i.gold, i.inv['profile'], i.inv['level'], i.uid]
[7] pry(main)*   end  
[7] pry(main)* end

 
require './user'
require 'csv'

users = User.file 'users.json'

cs = CSV.generate do |c|
    c << %w[名字 性别 分数 宝石数 副本 级别 UID]
    for i in users
         c << [i.name, i.boy ? '男' : '女', i.gold, i.gem, i.inv['profile'], i.inv['level'], i.uid]
    end
end

File.write 'users.csv', cs