Page 252 - AI Computer 10
P. 252
The basic syntax of if statement is as follows:
if<conditional expression>:
Body of if(a set of statements)
Example:
Always remember that If statement will do nothing if the test expression evaluates to False.
If-Else Statement
The if else control structure also tests a conditional expression. If the condition evaluates to True, the statements
inside the if part will be executed, and if the condition evaluates to False, then statements inside the else part
will be executed.
The basic syntax of if else statement is as follows:
True False
<IF Conditi on>
if<conditional expression>:
body of if(Set of Statements)
Body of IF Body of ELSE
else:
body of else( Set of Statements)
Example:
If-Elif-Else Statement
Sometimes, just a single test condition is not sufficient to take a decision but, it may be several other conditions
which need to be tested in a cascading order. In such situations, if…elif…else statement is used.
1
if<condition >:
Set of Statements
2
elif<condition >:
Set of statements
3
elif<condition >:
Set of statements
else:
Set of statements
Let us make a program using if….elif….else conditional statement in which user enters a choice.
118
118