Exercises, examples and other material relating to training module P204. This topic is presented on public courses
Perl Programming,
Perl bootcamp
Learning to program in Perl / Perl Programming - Programming Perl - for newcomers to the language
This course introduces you to the Perl programming language.
... http://www.wellho.net/course/ppfull.html [course] |
Learning to Program in Perl / Perl Programming - Learning Perl - whether you're new to programming or 'converting'.
This course covers programming in the ... http://www.wellho.net/course/lpfull.html [course] |
Perl Bootcamp - The fundamentals of the language.
This course covers the fundamentals of the Perl programming
for computer professionals who are new to ... http://www.wellho.net/course/bpfull.html [course] |
"Isn't there one standard way to say NOT?" asked one of my delegates on today's course - and it's an excellent question. But the answer to a question ... http://www.wellho.net/mouth/1696_Say ... -Lua-.html [short article] |
#!/usr/bin/perl
# condition - if statements
print "Enter a number = ";
$number = ;
if ($number > 10) {
print "That number is over 10\n";
... http://www.wellho.net/resources/ex.php4?item=p204/condition [code sample] |
Whenever you do an equality check in a Perl program, you must think whether you're checking if two numbers are equal, if two test strings are equal, or ... http://www.wellho.net/mouth/1727_Equ ... -Perl.html [short article] |
print "Enter your age ";
chop ($age = );
if ($age < 21) {
print "you are a youngster\n";
} elsif ($age = 21) {
print "you are learning\n";
... http://www.wellho.net/resources/ex.php4?item=p204/nask [code sample] |
In Perl, if and while statements (and many others too) are used to control a block of code that may run many times, or may run only if a certain condition holds. This module not only introduces you to if and while, but also gives you some programming tips to help you come to grips with the increasingly complex structure that you'll be writing as your program gets longer.
This topic is presented on public courses
Perl Programming,
Perl bootcamp
Examples from our training material
| bmi3 | Demonstration with conditionals |
| bmi4 | bmi demonstration with loops |
| condition | if and if - else; blocks. |
| din | Use of shorthand operators |
| dinners | nested blocks - loops and conditionals |
| looper | while loop |
| nask | if, elsif and else |
| numbers | how to write numeric constants |
| readandtotal | Reading and totalling numbers - sample answer |
| summer | Answer to practical (reading and summing numbers) |
Pictures
Getting to grips with Perl
Background information
Some modules are
available for download as a sample of our material or under an
Open Training Notes License for free download from
http://www.training-notes.co.uk.
Topics covered in this module
The if statement.
Conditions and blocks.
The while statement.
Shorthand operators (add and assign, ++, etc.)
Ways of writing numbers.
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