operation:
# (1) corresponding to the variable name is removed on both sides of the space values name = "Alex" Print (name.strip ()) # beginning (2) determines whether the value corresponding to the variable name to "al", and outputs the result # case It is a space for the opening Print (name.startswith ( "Al")) # (. 3) determines whether the value corresponding to the variable name ends in "x", and outputs the result Print (name.endswith ( "X-")) # (. 4 ) the value of the variable name corresponding to the "1" is replaced by "p", and outputs the result name = name.replace ( "L", "P") Print (name) # (. 5) corresponding to the value of the variable name in accordance with "1" is divided, and outputs the result List = name.split ( 'L') Print (List) List1 = name.split ( 'P') Print (List1) # (. 6) corresponding to the name of the variable value becomes capital, and output Print (name.upper ()) # (. 7) corresponding to the name of the variable value becomes lower case, and the output print (name.Lower ()) # (. 8) make the output value of the name variable corresponding to the second character Print (name [2]) # (. 9) Please output name variable corresponding to the first three characters of the value print (name [0: 4 ]) # (10) Please output name after a variable value corresponding to the two characters print (name [2: 4] ) index # (11) make an output value corresponding to the variable name "e" of the location of Print (name.find ( 'E')) # (12 is) acquisition sequence, and finally removed a character, as is acquired oldboy oldbo Print (name [0: len (name) -1])
to sum up:
Digital Type #
# integer int
# 100 = # Number int (100)
# number2 = int (100)
# Print (Number)
# Print (number2)
# float a float
# # a float SAL = 15.0 (15.0)
# = SAL2 a float (15.0)
# Print (SAL)
# Print (SAL2)
# type string
# name = 'Tank'
# = NAME2 "Tank"
# Content = '' '
# 1r1r1r
# 21r12r1
# r12r
# 12r1r21
# r12r1r2
# 12r1r
#' ''
#
# Print (name, NAME2, Content)
# Python strings may be added, multiplied
# Print ( 'Tank' *. 5)
# Print ( 'Tank' + 'Jam')
# Print ( 'Tank', 'Jam')
# list type
# [] brackets separated by commas, can be stored a plurality of different types of values.
# List1 = [ 'Zhang Man-Man', 'tank', 'Tu Yi Lei',. 11, 1.0, [ 'Jason', 200 is]]
# Print (List1 [0])
# Print (List1 [. 5] [0])
# dictionary type
# in the {} are separated by commas, can be stored a plurality of values, each value key: value stored in the form
# memory
# dict1 = { 'name': "tank", "age": 18} # name = { "Tank", "Age"} = 18 is
# take
# Print (dict1 [ "name"])
# boolean
# True or False
# Print (10 == 10) True #
# Print (== 10. 11) False #
# Note: All data types Boolean own, 0, None, are empty False
# 0 IF:
# Print ( '111')
#
# None IF:
# Print ( '111')
#
# IF []:
Print # ( '111')
#
# the else:
Print # ( '222')
# format output
# to be replaced once the string type output
# Placeholder% s,% d may be replaced with a digital type
# number = input ( 'Enter:')
# = str1 '' '
# Dear User, your credit balance membered% s.
# '' '% Number
#
# Print (str1)
# for cycle
# List1 = [. 1, 2,. 3,. 4,. 5]
# for Line in List1:
# Print (Line)
# for Line in Range (. 1, 10) :
# Print (Line)
# dict1 = { 'name': "Tank", "Age":} 18 is
# Key in dict1 for:
# Print (Key)
# Print (dict1 [Key])
# '' '
# Str1 =' XXX My name IS, IS 18 is My Age '
# # eliminate spaces around Strip
# Print (str1)
# Print (str1.strip ())
# # segmentation Split
# str1.split List2 = ( '')
# Print (List2)
# str2 = 'My name IS XXX, My Age IS 18 is'
# for Line in str2:
# Print (Line, End = "")
# STR6 = 'My name in Tank'
# Print ( str6.lower ())
# Print (str6.upper ()) # Lower upper uppercase to lowercase
# print (str6.startswith ( 'my' )) #startswith determining determines endswith front rear
# print (str6.startswith ( 'My' ) )
# Print (str6.endswith ( 'Tank'))
# #fomat three kinds of play
# STR7 = 'My name in {}, {} My Age IS'
# STR7 = str7.format ( 'Tank',18)
# print(str7)
#
= STR7 # 'My name in {}. 1, 2} {My Age IS'
# STR7 = str7.format ( 'Tank', 18,111)
# Print (STR7)
#
# STR7 = 'My name in {name}, My Age Age} {iS '
# STR7 = str7.format (name =' Tank ', Age = 18 is)
# Print (STR7)
#' ''
# # of the Join list according to some data identifying a string type to be spliced splicing
name = # 'Tank'
# Age = '20 '
# Print (': 'the Join ([name, Age]).)
# #replace
# Str8 =' new new Old '
# Str8 = str8.replace (' Old ',' new new ')
# Print (Str8)
# #isdigit numeric string is determined whether
# ID = input (' enter ')
# Print (ID)
# Print (ID.isdigit ())
List1 = [' Tank ', 18 is, 'womale', 3.0,9]
print(list1[4])
print(list1[-2])
# '''
Str1 = # 'My name XXX IS, IS 18 is My Age'
# str7='my name in {1}，my age is{2}'
# # Eliminate spaces around Strip
# Print (str1)
# Print (str1.strip ())
# # segmentation Split
# List2 = str1.split ( '')
# Print (List2)
# = str2 'My name IS XXX, My IS 18 is Age '
# for Line in str2:
# Print (Line, End = "")
# STR6 =' My name in Tank '
# Print (str6.lower ())
# Print (str6.upper ()) # Lower lowercase upper uppercase
# print (str6.startswith ( 'my' )) #startswith determining determines rear front endswith
# Print (str6.startswith ( 'My'))
# Print (str6.endswith ( 'Tank'))
# #fomat three kinds play
# STR7 = 'My name in {}, {} My Age IS'
# STR7 = str7.format ( 'Tank', 18 is)
# Print (STR7)
#
# STR7 = str7.format ( 'Tank', 18 is,111)
# print(str7)
#
= STR7 # 'in My name {name}, {My Age Age IS}'
# STR7 = str7.format (name = 'Tank', Age = 18 is)
# Print (STR7)
# '' '
# # of the Join list according to some data identifying a string type to be spliced splicing
# name = 'Tank'
# Age = '20 '
# Print (': '. the Join ([name, Age]))
# #replace
# Str8 =' new new Old '
# Str8 = str8.replace (' Old ',' new new ')
# Print (Str8)
# #isdigit numeric string is determined whether
# ID = input (' enter ')
# Print (ID)
# Print (ID. isdigit ())
List1 = [ 'Tank', 18 is, 'womale', 3.0,9]
Print (List1 [. 4])
Print (List1 [-2])
Print (List1 [. 1:. 5: 2])
Print (len (List1))
# append the append ()
list1.append ( 'sjkd'
Print (list1.pop ())
print(list1)
# Delete pop () default last -1
Print (list1.pop (0))
Print (List1)
List1.
# cycles