puts_test.rb #!/usr/bin/ruby # -*- coding: UTF-8 -*- open("test.txt","w:UTF-8") {|f| f.puts "(1)test" f.puts "(2)test".encode("UTF-16BE") f.puts "(3)日本語" f.puts "(4)日本語".encode("UTF-16BE") f.puts "(5)\u0109" f.puts "(6)\u010a" f.puts…