slice operation of consequence in python

the  slice operation consequence is easy.

the prototype of the function  is str[start:end:step] .

then let's see the  following examples:

>>>str1='abcde'

>>>str1[1:3]

'bc'

>>>str1[:]    #default start is 0 and default end is (len(str)-1)

'abcde'

>>>str1[1:4:1]

'bcd'

>>>str1[0:4:2]

'ace'

>>>str1[-4]

'b'

>>>str1[-4:-1]

'bcd'

>>>str1[-4:-1:1]

'bcd'

>>>str1[-4:-1:-1]

'dcb'

>>>str1[::2]    #default start is 0 and default end is (len(str)-1)

'aec'

slice operation of consequence in python

the  slice operation consequence is easy.

the prototype of the function  is str[start:end:step] .

then let's see the  following examples:

>>>str1='abcde'

>>>str1[1:3]

'bc'

>>>str1[:]    #default start is 0 and default end is (len(str)-1)

'abcde'

>>>str1[1:4:1]

'bcd'

>>>str1[0:4:2]

'ace'

>>>str1[-4]

'b'

>>>str1[-4:-1]

'bcd'

>>>str1[-4:-1:1]

'bcd'

>>>str1[-4:-1:-1]

'dcb'

>>>str1[::2]    #default start is 0 and default end is (len(str)-1)

'aec'