IF...ELIF...ELSE Statements :
An else statement can be combined with an if statement. An else statement contains a block of code that executes if the conditional expression in the if statement resolves to 0 or a FALSE value.The else statement is an optional statement and there could be at the most only one else statement following if.
Syntax :
if expression:
statement(s)
else:
statement(s)
Let us take another example :
#!/usr/bin/python3
amount=int(input("Enter
amount: "))
if
amount<1000:
discount=amount*0.05
print ("Discount",discount)
else:
discount=amount*0.10
print ("Discount",discount)
print ("Net payable:",amount-discount)
|
In the above example, discount is calculated on the input amount. Rate of discount is 5%, if the amount is less than 1000, and 10% if it is above 10000. When the above code is executed, it produces the following result-
Enter
amount: 600
Discount
30.0
Net
payable: 570.0
Enter
amount: 1200
Discount 120.0
Net payable: 1080.0
|
Single Statement Suites
If the suite of an if clause consists only of a single line, it may go on the same line as the header statement.Here is an example of a one-line if clause-
|
#!/usr/bin/python3
var =
100
if (
var == 100 ) : print ("Value of expression is 100")
print
("Good bye!")
Value
of expression is 100
Good bye!
|
When the above code is executed, it produces the following result-
|
Value
of expression is 100
Good bye!
|
