#!/usr/bin/env python 
# Python3 實(shí)現(xiàn) 
_modeluprivate = '本模塊私有'  #不能用 from module import * 導(dǎo)入 
 
class People(): 
  def __myprivate(self): 
    print("This is a private fun") 
  def __test__(self): 
    print('call __private: ',end='') 
    self.__myprivate() 
 
if __name__ == '__main__': 
  a = People() 
  a.__test__()      # 專(zhuān)有方法，一般系統(tǒng)專(zhuān)用，自己的類(lèi)方法不要用這種新式命名 
  a._People__myprivate() # 私有方法被對(duì)外被翻譯成了這種名字，從而達(dá)到私有的效果 
  print(_modeluprivate) 
   
''''' 
輸出 
call __private: This is a private fun 
This is a private fun 
本模塊私有 
''' 


          

            
#!/usr/bin/env python 
# Python3 實(shí)現(xiàn) 
class IterTest(): 
  def __init__(self): 
    self.a = 0 
  def __iter__(self): 
    return self 
  def __next__(self): 
    self.a += 1 
    if self.a > 3: 
      raise StopIteration 
    return self.a 
 
if __name__ == '__main__': 
  a = IterTest() 
  for i in a: 
    print(i,end=' ') 
  b = IterTest() 
  print(list(b)) # list()構(gòu)造器,可以接受可迭代對(duì)象 
  c = IterTest() 
  print(next(c), next(c), next(c)) 
 
''''' 
輸出 
1 2 3 [1, 2, 3] 
1 2 3 
''' 
          

            
#!/usr/bin/env python 
# Python3 實(shí)現(xiàn) 
def funGenerate(): 
  yield 1 
  yield 2 
  yield 3 
 
if __name__ == '__main__': 
  a = funGenerate() 
  for i in a: 
    print(i, end=' ') 
  b = funGenerate() 
  print(next(b),next(b),next(b)) 
 
''''' 
輸出 
1 2 3 1 2 3 
'''