List creation class 11 cbse

LIST CREATION

• List is sequence which can store value of and kind.

CREATION OF LIST

• >>>Mylist = list('hello')

          >>>Mylist 

                 ['h','e','l','l,'o']

• >>>L1= list(input("enter list element"))

          Enter list Element 1,2,3,4,5

          >>> L1

          (1,2,3,4,5)

eval( ) function identifier type of passed string and then return it.

>>>a="15"

>>>b="25"

>>>print(a+b)

       1525

>>>print(eval(a)+eval(b))

       40

Accessing of list

• len( ) function is used to get the length of list.
• L[i] will return the value exist at index.
• L[i:j] will return a new list with the values from i index to j list excluding j index.

Transverse of list

Transverse of a list means to access and process each and every element of that list.

List slicing

• To slice a list index is-

>>>lst = [10,12,14,20,22,24,30,32,34]

>>> SEQ= lst[3:-3]

>>>SEQ

      [20,22,24]

SEQ=list[start:stop]

seq=list[start:stop:step]