Experience of Python Learning Week 3

 

Adam

2017年8月3日

 

 

Experience of Python Learning

week3

 

In the beginning , I have learnt the operation of files , it has the following procedure:

1. Open the file , get the file handle
2. Operate things on files through file handle

　　3.  close the file 

 

And other functions can go to http://www.cnblogs.com/alex3714/articles/5717620.html for more informations. In order to avoid you not closing the file , which may cause out of memory , you can use WITH sentence.

And then the ENCODE and DECODE strings. 

 

And the func:

1.avoid putting repetitive code in the program

2.make the program more extensible

3.make the program easy to maintain

 

 

 

 

Then I learn the recursion:

1.must have a specific END statement

2.every time when you reach the deeper level of recursion , the problem must be less than the former level , or you’ll cause the program out of STACK.

 

Last is higher-order function(HOF):