Chapter 12
Testing sets of conditions
Utilizing the if articulation, you've figured
out how to test for a condition. On the chance that the condition is met, at
least one explanation execute. Be that as it may, assume not one but rather two
conditions must be met altogether for a test to succeed.
For instance, if a
person gauges in excess of 300 pounds, he's simply an incredible enormous
person. In any case, in the event that he gauges in excess of 300 pounds and
runs 40 yards in less than 6 seconds? You will welcome him to go for the group.
You can test for a mix of conditions in Python by utilizing the catchphrase and.
1if weight > 300 and time <
6:
2status = "attempt to enlist
him"
The individual
requirements to meet the two conditions—more than 300 pounds and under 6
seconds—to qualify. In the event that he meets just one of the conditions, the
test fizzles.
You can chain quite a
few conditions together.
1 if weight > 300 and time
< 6 and age > 17 and tallness < 72: 2 status = "attempt to enroll
him"
You can likewise make a
test that passes if any condition is met. The watchword is or.
1if SAT > avg or GPA > 2.5
or parent == "alum":
2messages = "Welcome to
Leeds College!"
Just one of the
conditions should be met all together for the invite message to be conveyed—a
high SAT score, a nice evaluation point normal, or a parent who went to the
school. Any of them will do. Obviously, line 2 executes if more than one
condition is met.
You can join quite a few and as well as conditions. At the point when you do, you make ambiguities. Take this line...
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in the event that age > 65 or
age < 21 and res == "U.K.":
This can be perused in
both of two different ways.
The principal way it
very well may be perused: If the individual is more than 65 or under 21 and,
notwithstanding both of these conditions, is additionally an inhabitant of The U.K. Under this understanding, the two sections in the accompanying table
should be valid altogether for the in general if articulation to be valid.
More than 65 or under 21 Resident of U.K.
The second way it tends
to be perused: If the individual is more than 65 and living anyplace or is
under 21 and an occupant of the U.K. Under this understanding, if either the section in the accompanying table is valid, the by and large if the proclamation is
valid.
Over 65 Under
21 and U.K. occupant
It's a similar issue you face when you
consolidate numerical looks. Furthermore, you address it in a similar way: with
enclosures.
In the accompanying
code, if the subject is more than 65 and a U.K. occupant, it's a pass.
Or then again, if the subject is under 21 and a
U.K. inhabitant, it's a pass.
on the chance that (age > 65
or age < 21) and res == "U.K.":
In the accompanying
code, if the subject is more than 65 and living anyplace, the by and large if the proclamation is valid. Or on the other hand, if the subject is under 21 and
living in the U.K., it's a pass.
in the event that age > 65 or (age < 21 and res == "U.K."):
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