convert string to list python

have the ' K1 ' key, create the ' K1 ' key and its value (the value of the key is set to an empty list), and the index in the list Li is an odd-numbered element that is added to the empty list of the ' K1 ' key.If the dictionary has the ' K1 ' key and the K1 corresponding value is a list type, then the index in the

First, the string function1, Capitaliza first letter capital# name = ' Alex '# v = name.capitalize ()# Print (v)#2, all caps are lowercase, casefold can be transferred to many languages, lower can only be transferred to English.# name = ' AleX '# v = name.casefold ()# Print (v)# name = ' AleX '# v = name.lower ()# Print (v)#3, center string Center, Parameter 1 (required) is the total length, parameter 2 (op

(name.upper ()) print ("\nalex\n". Lstrip ()) #左边去空格或者回车print ("\nalex\n". Rstrip ()) # Go to the right side of the space or enter print (Name.strip ()) #两边都去空格print ("Funny keys\n") V=str.maketrans ("ABCdef", "123456") # number corresponding! Print ("Alex Li". Translate (v)) print ("Alex L". Replace (' l ', ' l ', 1)) print ("Alex Li". RFind ("L")) #找到最右边的的l and return to print ( Name.split ()) # The photo space is divided into the list print (Name.

One of the notes of software Web Architects _ complements the imperfect second of Linux commands with a Python script:Traverse (Linux) subdirectories (or folders) with a Python script and find the specified string, and display:1, directory location;2, (string) where the file name;3. The line number where the

instead of 0) plus 1. For ch in text:if (Ch.lower () No in alphabetlist): Continue else:ch = Ch.lower () Letterpos + = str (alphabetlist.index (CH) + 1) + ""Finally, return the string position, and don't forget to truncate the space at the end of the string. The complete code is as follows:Defalphabet_position (text): if (len (text) ==0): #ifthe textisblankthenreturnit Returntextalphabetlist=["A", ' B ',

= Set1.difference (Set2)#difference = minus public part-Set1-set2 Print(set3) Set3= Set1.symmetric_difference (Set2)#symmetry difference = set-intersection ^ Set1 ^ Set2 Print(SET3) forValinchSet2:Print(val)Print(Set2.pop ())#you can get one, there's no guarantee what you got. Print(Set2)if3inchSet2:set2.remove (3)#Judging, deleting elements Print(Set2) Set4= {1, 2} Print(Set4.issubset (Set1))#4 is a subset of 1, Set4 Print(Set1.issuperset (SET4))#1 contains 4. Set1 >= Set4if

one)%ra takes precedence over string conversions with the repr () function%s takes precedence over string conversion with the STR () function%d/%i turns into signed decimal number%ub converted to unsigned decimal number%ob turns into unsigned octal number%XB/%XB (Unsigned) turns to unsigned hexadecimal number (x/x represents the size of the converted hexadecimal characterlowercase%e/%e turns into scientifi

(Name.lower ()) #把所有的小写字母都变成大写#NA = ' select * from 'Print (Name.startswith (' select ')) #判断字符串是以XX开始的#na = ' 1.jpg 'Print (Name.endswith ('. jpg ')) #判断字符串是以XX结尾的#f = ' {name} welcome 'Print (F.format (name= ' YBQ ')) #格式化#f = ' {name} welcome 'D = {' name ': ' YBQ '}Print (F.format_map (d)) #字典形式格式化#Print (Name.replace (' t ', ' d ')) #字符串替换, the first one is old, the second is the new one.Print (Name.isdigit ()) #是否是数字Print (' 123 '. IsDigit ()) #是否是数字#Print (Name.isalnum ()) #是否包含数字或字母Prin

)#returns a copy of S, if shorter than W, from the beginning with 0 supplement, so that the length and W;S.center (Width,char)#returns a string with the width of the center length of s, or padding with an optional argument char or a space if one is available, such as WidthS.ljust (Width,char)#Ibid., left-aligned;S.rjust (Width,char)#Ibid., right alignment;S.encode (Endoding,err)#returns a Bytes object that represents the

#-*-Coding:utf-8-*-#author: RXS002#1. DictionariesDict = {' name ': ' Zara ', ' age ': 7, ' class ': ' First '}#字典转换为字符串, return: Print (Type (str (dict)), str (DICT))#字典可以转为元祖, return: (' age ', ' name ', ' class ')Print (Tuple (dict)#字典可以转为元祖, return (7, ' Zara ', ' first ')Print tuple (dict.values ())#字典转为列表, return: [' age ', ' name ', ' class ']Print List (dict)#字典转为列表Print (dict.values)#2. Yuan zuTup = (1,2,3,4,5)#元祖转为字符串, return: (1,2,3,4,5)Pri

Because the operands of the read and write methods of Python are all string. When the binary is manipulated, the string is converted to a list for parsing, and when the file is re-written, it is converted to string.>>> Import String