Class Notes (885,338)
US (343,727)
UVA (2,184)
CS (38)
CS 1110 (9)
Lecture 1

CS 1110 Lecture 1: November 27 – Writing Files

3 Pages
78 Views

Department
Computer Science
Course Code
CS 1110
Professor
Tychonievich

This preview shows page 1. Sign up to view the full 3 pages of the document.

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California
Description
November 27 Writing Files Wednesday, November 29, 2017 10:15 AM Reading files: go into file cabinet and read files CPU: processing and math RAM: stores contents of all variables o Together, these run the code HDD / DISK / Solid State Drive: Disk is like filing cabinet o Keeps what we put in it as long as we leave it in there o Can store things for long times When you read a file, you only get a copy It does not remove it from disk o Disk just makes a copy of disk and puts in into RAM This makes it really safe to open and read files Sending new data to disk: writing o Reading gives you a copy o Writing changes files We will give the files we write a general naming pattern, so as not to override other files Process of Writing Files 1. Open 'w' or open('f.txt', 'w') o This creates file if not there o Opening file for writing causes contents to vanish
More Less
Unlock Document
Subscribers Only

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
Subscribers Only
You're Reading a Preview

Unlock to view full version

Unlock Document
Subscribers Only

Log In


OR

Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit