пожалуйста, возвращайтесь позднее
пожалуйста, возвращайтесь позднее
>> All right, welcome back to CS-50. This is the start of week 1, so it's this week that we dive into actual programming with a modern programming language and begin to tease apart some of the basic building blocks that frankly will carry us through the whole semester. More on that in a moment as to what that means, but quickly one, you do have a printout today of all the source code that we'll use today and also on Friday. You'll find that they lines are numbered, so if you've ever heard of a language called basic that's actually a language from yesteryear where you actually as the human how to type line 10, line 20, line 30, and then you wrote your code to the right of this. So that was kind of a humanities clever approach to leaving room in case in the future you wanted to add some more lines of code. You could put it between lines 11 and 19, didn't really scale particularly well. These are just printouts, line numbers, so you won't be writing those numbers there but I'll often refer to them. Office hours have been in progress. If you would like to come hang out in either the Quad or Quincy Hall dining hall this evening or next evening, do drop by. The teaching fellows will be there with the CAs to just chit chat about the course, help you with your scratch projects or just generally hang out and spend the evening in more of a communal environment. And then sections, we will have the sectioning process officially begin tonight around midnight, so check CS50.net's home page and we will have an announcement there as to how you section. But so that we have some breathing room and we don't start off the semester on too rushed a foot, what we're going to do is not start in intimate sections where 12 to 15 students and one CF this coming week, we're going to start those in two weeks time and this first week, so this coming Monday Tuesday Wednesday we're going to have super sections led by pairs of TFs. There's just going to be larger sections for the first week that you're welcome to attend any of those. The locations will be announced, so go to CS50.net/sections to see the current Google calendar for that. And then finally we do have a bunch of sensor boards if you would like to take on the hacker edition of PSET-0, but do realize that will always be the case we expect, we encourage almost everyone in the course to pursue the standard edition, so by no means should you feel like you are falling behind or cutting corners by just doing the standard edition that's meant for most folks. So with that said, we spent and a number of you have spent already some time playing with scratch and we actually have kept an eye, partly just out of curiosity, on what kinds of submissions have been coming in already. Now, not to worry if you think it's a little premature for — little bug sometimes, the mouse stops responding so see if the screen starts responding again. There we go. All right. So I went ahead and dug up this so if only for curiosity's sake, only about 10 percent of the class has submitted already. So here too don't worry that you're already behind given how quickly some folks have started submitting. About 30 people submitted. We found this is slightly statistically interesting. So as might be expected, most of you, many of you are running Windows. What was kind of interesting was that neon of you have gone out and got and installed this brand new shiny operating system by Apple, Snow Leopard, and we'll see if some of those numbers change. Or maybe someone back there, so we'll see when those numbers come in.