after class homework
= name " Alex "
# removed name spaces on both sides of the value corresponding to the variable, and outputs the processing result
Print (() name.strip)
# determines whether the value of the corresponding name begins with "al", and outputs the result
Print (name.startswith ( " Al " ))
# determines whether the name corresponds to the value "X" at the beginning, and outputs the result
Print (name.startswith ( " X- ' ))
# the value of the variable name corresponds to" 1 "is replaced with" p " , and outputs the result
name = name.replace ( " L " , " P " )
Print (name)
# the name of the corresponding variable value in accordance with "1" is divided, and outputs the result
List1 = name.split ( ' L ')
Print (List1)
# The name becomes a variable value corresponding to upper case, and outputs the result
Print (name.upper ())
# The name corresponding to the variable value becomes lower case, and outputs the result
Print (name.lower ())
# Please output name variable corresponding to the second character values
Print (name [. 1 ])
# please output the first three characters of the name variable value corresponding
Print (name [0:. 3 ])
# Please output value of the name corresponding to the variable 2 characters
Print (name [-2 :])
# Please output value corresponding to the variable name in the "e" index position where
Print (name.find ( " E " ))
# acquisition sequence, the last character is removed. As Oldboy is acquired oldbo
S = ' Oldboy '
Print (S [0: -1])
Screenshot result Morning
direct1 = { 'name': 'zcj', 'age': 20 }
for key in direct1:
print(key)
print(direct1[key])
in the afternoon
= List1 [ ' Tank ' , 18 is, ' Guangdong ' ]
Print (List1 [2 ])
Print (List1 [-1 ])
str1 = ' My name IS XXX '
Print (str1 [. 3:. 7 ])
# slice (GU head regardless of the end, step)
Print (str1 [. 3: 10: 2]) # . 3 ~ (7-1)
# len length
Print (len (str1))
# membership operator in / in Not
Print ( ' X ' in str1)
# remove blank Strip ()
# remove the spaces around the string
print(str1.strip ())
# Split () will go to a string according to segmentation rules brackets, each value is then added to the list
Print (str1.split ( ' ' ))
for Line in str1:
Print (Line, = End '' ) # Print parameter default = End '\ n-';
# End = "" customize the parameters
# the lstrip removed or left spaces designated symbol
# the rstrip remove spaces or specified symbol right
str2 = ' ** My name XXX IS '
Print (str2.rstrip ())
Print (str2.lstrip ( ' * ' ))
# all converted into lowercase Lower ()
# convert all lowercase Upper ()
Str3 = 'XXX name IS My '
Print (str3.upper ())
# startsWith, endsWith
# determines whether or not the establishment of end to end string
Print (str3.startswith ( ' My ' ))
Print (str3.endswith ( ' My ' ))
str4 = ' My iS XXX name, My Age 18. a iS '
str5 = ' My name iS XXX, My Age 18. a iS '
# 1. Strip, the lstrip, the rstrip
# L specified space or removal of the left symbol
# R & lt spaces or removing the specified symbol on the right
Print (str4.lstrio ())
Print (str5.rstrip ())
str4 =' *** My name XXX IS, IS My Age 18. A '
str5 = ' My name XXX IS, IS 18 is My Age. *** '
Print (str4.lstrio ( ' * ' ))
Print (str5.rstrip ( ' * ' ))
# the format
# accordance with alternative position
# accordance Alternatively it
# by name replaced (by name)
STR7 = ' My name IS {name}, {My Age Age IS} '
STR7 = str7.format (name = ' ZCJ ' , Age = 18 is )
Print (STR7)
Str8 = 'IS {name}. 1 My, My 2 Age {IS} '
Str8 = str8.format ( ' ZCJ ' , 18 is, 21 is )
Print (Str8)
# the Join to the string concatenation, will identify the data list according to some splicing
name = ' ZCJ '
Age = ' 18 is '
Print ( ' : ' .join ([name, Age]))
# Split, rsplit: cut open from the left, from the right cut
# Replace: parentheses first parameter is old parameter the second is a new parameter, an amount of parameter substitution
Str8 = ' Old new new '
Str8 = str8.replace ( ' Old ' , 'python')
Print (Str8)
# isdigit: determining whether the numeric string
# ID = INPUT ( "Please enter:")
# Print (type (ID))
# Print (ID.isdigit ())
# Built list method
# 1 by index values, forward from the left, from the right negative
List = [ ' ZCJ ' , 18 is, ' FEMALE ' , 3.0,. 9 ]
Print (List [. 4 ])
Print (List [ -2 ])
# slicing, care regardless tail, step (5-1)
Print (List [. 1:. 5 ])
Print (List [. 1:. 5: 2 ])
# length len
Print (len (List))
# and in operation in members not
Print ( ' ZCJ ' in List)
Print ( ' ZCJ ' not inList)
# additionally
# list append value
list.append ( ' HHH ' )
Print (List)
# POP Remove
# POP values extracted list
# Remove delete the value list
Print (list.pop ()) # default - . 1
Print (List)
Print (list.pop (0)) # ZCJ
Level = list.pop ()
Print (List)
# name = list.remove ( 'ZCJ')
# Print (name)
# Print (List)