Python Notes Unit 2 , Part 1
UNIT-2 (Part-1)
Conditional blocks using if, else and else if.
For loops and iterations.
While loops, Loop manipulation using continue break and else
(and pass in Python).
Programming using conditional and loops block.
Control Structure:
1.
A control structure is a
medium for deciding the way of flow the program into a successful path.
2.
It is responsible for
deciding a suitable path for the generated code and its desired output.
3.
There are following types
of control structure
a) Selection
b) Sequential
c) Repetition
(Iteration)
Conditional Block:
1.
A conditional block is
used for take a different path which is depending on some conditions.
2.
It allows a program to
performing a test and then take action depends on the result of the test.
3.
It has one incoming path or may have one or
more outgoing paths.
4.
There are mainly three types of conditional block or
statements which is discussed.
a) If
b) If Else
c) If elif else
If statement
–
1.
if statement is a one of the commonly used conditional
statements in all the programming languages.
2.
This statement decides whether following statements need to
be executed or not.
3.
The if condition evaluates a Boolean expression and then
executes the block of code when the Boolean expression becomes TRUE
Syntax –
if (Expression == TRUE):
Statement 1
Statement
2
Code
outside if block
Statements
If Else statement -
1.
Else statement is used when previous condition is false.
2. If the condition is false then body of else is executed.
3.
Indentation used to separate the block of codes.
Syntax –
if (Expression == TRUE):
Statement 1
Statement 2
Else:
Statement 1
Statement 2
If elif else statement -
1.
The elif statement is short for else if statement.
2. This statement allows us to check multiple expressions at a
time.
3.
If the condition for if statement is false, it checks the
next condition of elif statement.
4.
If all these conditions are false, then the body of else is
executed.
Syntax-
if (Expression == TRUE):
Statements
Statements
elif (Expression
== TRUE):
Statements
Statements
Else:
Statements
Statements
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Introduction, Variables and Data types Part-1
Introduction, Variables and Data Types Part 2
Introduction, Variable and Data Type Part 3
UNIT -02 Notes
Conditional statements in python part 2
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