# Initials
S = 'ab &; CDe; Ftg; the Hi'
# S1 = s.capitalize ()
# all capital letters
S2 = s.upper ()
Print (S2)
# all lowercase
S3 = s.lower ()
Print (S3)
# reverse case
S4 = s.swapcase ()
Print (S4)
# capitalize the first letter of each word
S5 = s.title ()
Print (S5)
# centrally and filled
s6 = s.center (30, ' - ')
Print (S6)
# variables have' \ 'filled preceding character 8
S7 = s.expandtabs ()
Print (S7)
# check variable number of characters
S8 = len (S)
Print (S8)
# What is determined is the beginning startsWith
S9 = s.startswith ( 'ab &', 0,5)
Print (S9)
# determines in what end endsWith
S10 = s.endswith ( 'E', 0,5)
Print (S10)
# find the index elements by : index find #index if not found error would rather find returns -1 not found
= s.find S11 ( 'F')
Print (S11)
# delete the character left and right (default blank) Strip
S12 = s.strip ()
Print (S12)
# delete the character left (default blank) lstrip
# delete the right characters (a space by default ) the rstrip
# check there are several variables corresponding character conut
S13 = s.count ( 'the CD')
Print (S13)
# split variable listing
S14 = s.split ( ';')
Print (S14)
# # format three methods of output format
# S15 = 'my name is {}, {year}, {} hobbies, again I'm {}'. format ( 'Stayed', 21, 'female', 'Li Mingjun')
# Print (S15)
# S16 = 'my name is {0}, {1} this year, hobbies, {2}, again I call {0}'. format ( 'Stayed', 21, 'female')
# Print (S16 )
# = the INPUT name ( "name:")
# = the INPUT Age ( "Age:")
# = the INPUT Hobby ( " Hobbies: ")
# S17 = 'My name is {name} year {age} hobby {hobby}, repeat my name {name}'. Format (name = name, Age = Age, Hobby Hobby =)
# Print (S17)
# of #IN common two uses
# for i in S:
# Print (i)
#
# IF "F" in S:
# Print ( 'you entered contains illegal characters')
# = S '132a4b5c'
# s1 = (s.split ( 'A')) [0]
# Print (S1)
# S2 = S1 [0] + S1 [-1: 0: -1]
# Print (S2)
S = 'afdser'
I 0 =
# for I in S:
Print # (I)
# the while S:
# Print (S [I])
# I =. 1 +
# IF I> len (S):
# BREAK
# integer addition calculator
# contunt = input ( 'enter you want to evaluate and two numbers separated by commas')
# = contunt contunt.replace ( '', '')
# Contunt.split s = ( '+')
# S1 = int (S [0]) + int (S [. 1])
# Print (S1)
#
S = '12 is'
Print (s.isalnum ())
Capitalize the first letter: capitalize
ALL CAPS: upper
Lowercase: lower
Case reverse: swapcase
Word capitalized: title
Centered and filling: center
Backslash variable t '\ t' filled front 8: expandtabs
Check the variable number of characters: len
What to begin with startswith
To what end endswith
By looking for the index elements: find index # difference is that index will not find an error, find returns -1
Delete both sides of the character (default is a space) startip
Delete the spaces left: lstartip
The right to delete: rstartip
There are several variables to check the corresponding character: count
Split variables: split
Output formatting three methods: format
Replace characters: replace
Traversal variables: for i in s:
Determine whether variables are numbers: isdigit
Determining whether the variable letters: isalpha
Determines whether letters or numbers: isalnum