The path of the Python precipitation--a preliminary understanding of higher order functions

One, the higher order function: Two kinds: One is the return value contains the function body, the other is a function body as a parameter passed to another function

1. The return value contains the function body

Example 1,

1 def Test (): 2     Print (' This is a test ') 3     return Test 4 5 f = test ()6 F ()

1 This is a test 2 This is a test

Example 2

1 definward ():2     Print('From inward')3 defoutward ():4     Print('From outward')5     returnInward6 7f =Outward ()8F ()

1  from Outward 2  from Inward

2. Pass a function body as one parameter to another function

Example 1

 1  def   Inward (name):  2  print  ( " %s is from inward   %name)  3  4  def   Outward (n):  5  print  ("   I'm from outside the earth   " )  6  7  Outward (Inward ( '   I   )) 

1  is  from Inward 2 I come from outside the Earth

The path of the Python precipitation--a preliminary understanding of higher order functions