filter(函数,可以迭代的对象)

 #!/usr/bin/env python
 #filter(函数,可以迭代的对象)

 def f1(x):
     if x > 22:
         return True
     else:
         return False

 ret = filter(f1, [11,22,33,44])
 #相当于ret = filter(lambda x: x > 22,[11,22,33,44])
 for i in ret:
     print(i)

结果:

C:\Python35\python3.exe F:/Python/2day/c1.py
33
44

Process finished with exit code 0