問題1

• #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  sum = 0
  x = input('? ')
  while x > 0:
      sum = sum + x
      x = input('? ')
  print sum
  

問題2

• #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import sys
  import time
   
  t = int(sys.argv[1])
  for i in range(1, t+1):
      print i
      time.sleep(1)
  print '*** BANG ***'
  

問題3

• #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import sys
  import time
   
  t = int(sys.argv[1])
  for i in range(t, 0, -1):
      print i
      time.sleep(1)
  print chr(7)*3