Simple .NET/ASP.NET PDF document editor web control SDK

There is a useful relative of the if statement, which works more or less like this (pseudocode): if not condition: crash program Now, why on earth would you want something like that Simply because it s better that your program crashes when an error condition emerges than at a much later time. Basically, you can require that certain things be true. The keyword used in the statement is assert: >>> age = 10 >>> assert 0 < age < 100 >>> age = -1 >>> assert 0 < age < 100 Traceback (most recent call last): File "<stdin>", line 1, in AssertionError It can be useful to put the assert statement in your program as a checkpoint, if you know something has to be true for your program to work correctly. A string may be added after the condition, to explain the assertion: >>> age = -1 >>> assert 0 < age < 100, 'The age must be realistic' Traceback (most recent call last): File "<stdin>", line 1, in AssertionError: The age must be realistic

winforms pdf 417 reader, winforms qr code reader, winforms upc-a reader, winforms data matrix reader, winforms gs1 128, winforms ean 13 reader, c# remove text from pdf, pdfsharp replace text c#, winforms code 39 reader, c# remove text from pdf,

x.detect { |i| i > "j" }

8

=> "o"

x.select { |i| i > "j" }

=> ["o", "u"]

Next you want your audience s eyes to move to the second-most important element on the slide the graphic Whatever graphic you add here should illustrate the headline and help your audience literally see your point by using the power of the visual channel of working memory The graphic should pack as much meaning as possible into visual form and still be simple enough to be quickly digestible On the default layout when you rst import your headlines into PowerPoint slides, the position for the graphic is centered on the screen, where it is easy to see and understand you can adjust this layout according to what you sketched for each hierarchical level of the storyboard If you do adjust some of the slide layouts later, you should keep them simple and include white space if possible to give your audience visual breathing room to easily process the new information.

Now you know how to do something if a condition is true (or false), but how do you do something several times For example, you might want to create a program that reminds you to pay the rent every month, but with the tools we have looked at until now, you d have to write the program like this (pseudocode):

=> ["a", "e", "i", "o", "u"]

=> "u"

Although the basic layout for the slides is simple in style, it is sophisticated in its effect because the audience scans the headline and graphic and quickly understands the idea This verbal-visual reading of the slide should get your point across in seconds so that the working memory of your audience can now pay attention to you and what you re saying Later in this chapter, you can reinforce this reading sequence by using a simple animation technique to display the headline rst and then the graphic brie y thereafter The goal is to help your audience quickly digest the slide even if you display the slide for only a few seconds and then black out the screen, your audience should be able to articulate the main point of that single slide as you intended.

=> "a"

send mail wait one month send mail wait one month send mail wait one month (...and so on) But what if you wanted it to continue doing this until you stopped it Basically, you want something like this (again, pseudocode): while we aren't stopped: send mail wait one month Or, let s take a simpler example. Let s say that you want to print out all the numbers from 1 to 100. Again, you could do it the stupid way: print 1 print 2 print 3 . . . and so on. But you didn t start using Python because you wanted to do stupid things, right

The Comparable module provides methods that give other classes comparison operators such as < (less than), <= (less than or equal to), == (is equal to), >= (greater than or equal to), and > (greater than), as well as the between method that returns true if the value is between (inclusively) the two parameters supplied (for example, 4.between (3,10) == true). To provide these methods, the Comparable module uses the <=> operator on the class that includes it. <=> returns -1 if the supplied parameter is higher than the object s value, 0 if they are equal, or 1 if the object s value is higher than the parameter. For example:

After the slide initially sets the stage this way by quickly conveying the meaning of the headline, the slide now shifts.