Page 276 - Computer Science V2.0 Class 11

30 percentage = int(input("Enter student's percentage: "))
31 print('Your grade is', grade(percentage))
Sample Output:

>>> Enter student's percentage: 75
Your grade is A
10.3.3 if-elif-else Statement/ if-elif Statement

Both the if and if-else statements check for one conditional expression and, based on whether the conditional
expression yields (on evaluation) True or False, execute the if suite (also called the if block) or the else
suite (also called the else block) respectively. But sometimes, there arises a need to check multiple conditional
expressions. For example, in program 10.6, different actions were required to be executed depending on the value of
a variable percentage. In such situations, we use the elif clause. Fig 10.5 depicts the control flow in such situations.

Test True Sequence of Statements
Condition (if block)

False

Test True Sequence of Statements
Condition 1 (elif block 1)

False

Test True Sequence of Statements
Condition 2 (elif block 2)

False

Test True Sequence of Statements
Condition n (elif block n)

False

Sequence of Statements
(else block)

Fig 10.5: Block diagram (Flowchart) of if-elif-else statement

262 Touchpad Computer Science (Ver. 2.0)-XI