Control statements(Break, Continue, Pass) in Python.

-

Control Statement

Control statement allow a programmer to control the flow of program according to their need. Control statements are break, continue and pass.

Break Statement

The break statement allow a programmer to terminate a loop, when the break statement is encountered inside the loop,the loop is immidiately terminated and program control automatically goes to first statement.

Break statement in while loop

Syntax: while test_condition: statement(s) if test_condition: break statement(s)

Break statement in for loop

Syntax: for variable_name in Sequence: //Loop_Body if test_condition: break //Loop_Body //Statement after Loop

Write a program to demonstrate the use of break statement.

Syntax: print("The number from 1 to 5") for num in range(1,100): if num==4: break else: print(num)

output

The number from 1 to 5 1 2 3

Continue Statement

The continue Statement is exactly opposite to the break statement, Continue statement is encountered within a loop the remaining statement within the body are skipped but the loop condition checked to see if the loop should continue or exit.

Continue statement in while loop

Syntax: while test_condition: statement(s) if test_condition: continue statement(s)

Continue statement in for loop

Syntax: for variable_name in Sequence: //Loop_Body if test_condition: continue //Loop_Body //Statement after Loop

Write a program to demonstrate the use of continue statement.

Syntax: print("The number from 1 to 5") for num in range(1,6): if num==4: continue else: print(num)

output

The number from 1 to 5 1 2 3 5

Pass Statement

Pass statement is used to give a empty loop to a program. We are using pass statement for empty control statement.

Example:

st="Python" for i in st: pass print("Last Letter is ",i)

output

Last Letter is n

Comments

Post a Comment

Popular posts from this blog

Introduction to Python.

-
What is python? Python is an object-oriented programming language created by Guido Rossum in 1998. If you just beginning your programming career, python suits you best. With python you can do everything from GUI developement, web application, Machine learning, IOT, Game Developement etc. so it is general purpose high level programming language. It is very easy language,it is good for beginners. It is case sensitive language. Python is Dynamically Typed, Write less code do more. Introduction Easy to Learn and Use Python is easy to use and learn, it is user friendly and high level programming language. Expressive language Pyton language is more expressive means that is more understand and readable. Unique style Python is an interpreted language i.e interpreter execute the code line by line at a time . This makes debugging easy and thus suitable for beginners. Cross Platform Language Python can run equally on different platform such as windows, Linu...
Read more

Decision Making Statement.

-
Image
Conditional Statement Decision making of an anticipation of condition occuring by execution of program and dpecific action is taken according to condtion. Following is a general form of typical decision making structure found in most programming language. Python programming language uses any non-zero or non-null value as true and if it is either zero or null then it is assume false value. if Condition: In python the block of statement is executed if the condition is true. Syntax if (condition): Block(s) Example var1=100 if var1: print('i got an true value') print(var1) output i got an true value 100 Question: Write a program that prompt user to enter two integer values, print the message "equal" if both entered value are equal a=int(input("Enter first number")) b=int(input("Enter second number")) if a==b: print("equal") output Enter fir...
Read more