Python 統計學生數

# -*- coding: utf-8 -*-
class Student(object):
   count = 0

   def __init__(self, name):
      self.name = name
      Student.count += 1  # 每次調用這個方法創建實例，則Count+1


if Student.count != 0:
   print('測試失敗,Count: %s' % Student.count)
else:
   bart = Student('Bart')
   if Student.count != 1:
      print('測試失敗,Count: %s' % Student.count)
   else:
      lisa = Student('Lisa')
      if Student.count != 2:
         print('測試失敗,Count: %s' % Student.count)
      else:
         print('Stundents:', Student.count)
         print('測試通過')