https://cs61a.org/ .
Since I have studied some basic python before.Lecture 1 seems there's not too much things which aroused my interest. And i would like to share the debug principle learned in this lecture.
First , Check out your assumptions.That's it ! before we go to debug we really need to ask ourselves this question,What 's your assumptions ! After knowing it ,we need to verify the assumtions that we hold.
Second , Isolate errors.Trace the error to the smallest fragment of the code !
Third , test incrementally . Try out everything you write as soon as possible to identify the problem early.
Forth , consult others.
2018/3/20
After I watched the handout ,i want to add some windows cmd command here.
(1) dir. it can list the current directories the same as ls command in linux.
(2)mkdir <folder name>. it can help to make a folder on current directory
directory>.Move the previous file or folder to the last folder
(4) cd. Change to the directory specified.
After doing your work .You can check your work by using python ok on the labxx.py directory !
MY FIRST TIME BLOG WRITTEN IN ENGLISH , LOL
