Loop in Python

We can categories the Python loops in mainly three types

Loops

Python provides three ways to write loops:

1. For
2. While
3. Nested Loop

##For Loops

for x in collection:

          print x

##

Nested

   for item_var in sequence:

   for itemm1_var in sequence:

      statements(inner loop)

   statements(outer loop)

##While

while expression:

   statement(s)

j=2

while(j <= 20):

          j=j+2

          print j

##

Nested

   while expression:

while expression:

   statement(s)

      statement(s)

Loop Control Statement

1. Break
2. Continue
3. Pass

#Break

while(j <= 20):

          j=j+1

          if(j%2==0): break

                   print j

 # continue

 while(j <= 20):

          j=j+1

          if(j%2==0): continue

                   print j

#Pass

languages = ["C", "C++", "Perl", "Python"]

   for wd in languages:

   if wd == 'C++':

      pass

      print 'This is pass section'

   print 'Current Word :', wd

Recursion  

An recursion is a special type of function which call self content block auto  in particular action

# Simple

def factorial(n):

    if n == 1:

        return 1

    else:

        return n * factorial(n-1)

factorial(5)