Examples
The print
keyword prints the arguments immediately following it. If the
statement is followed by a comma, a new line isn't included in the output. For example:
print "This demonstrates the use of a",
print " comma at the end of a print statement."
This will result in the following output:
This demonstrates the use of a comma at the end of a print statement.
The for
statement iterates through a block of code. For example:
mylist1 = ["one", "two", "three"]
for lv in mylist1:
print lv
continue
In this example, three strings are assigned to the list mylist1
. The elements of
the list are then printed, with one element of each line. This results in the following output:
one
two
three
In this example, the iterator lv
takes the value of each element in the list
mylist1
in turn as the for
loop implements the code block for each
element. An iterator can be any valid identifier of any length.
The if
statement is a conditional statement. It
evaluates the condition and returns either true or false, depending
on the result of the evaluation. For example:
mylist1 = ["one", "two", "three"]
for lv in mylist1:
if lv == "two"
print "The value of lv is ", lv
else
print "The value of lv is not two, but ", lv
continue
In this example, the value of the iterator lv
is evaluated. If the value of
lv
is two
, a different string is returned to the string that's
returned if the value of lv
is not two
. This results in the
following output:
The value of lv is not two, but one
The value of lv is two
The value of lv is not two, but three