Day4-python Base 4 string manipulation

1. String usage

1Name ='Daniel'2 3 Print(Name.capitalize ())#Capitalize first letter4>>>Daniel5 Print(Name.count ('a'))#statistics the specified character6>>>17 Print(Name.center (50,'-'))#print a total of 50 characters, not enough to use-instead, put the name in the middle8>>>----------------------Daniel----------------------9 Print(Name.endswith ('El'))#Judging if the end is ' el 'Ten>>>True One Print(Name.expandtabs (tabsize=30))#if you enter \ t (tab) in front of a character, 30 spaces are automatically printed A>>>Daniel - Print(Name.find ('a'))#find the location where the characters are made ->>>1 theNames ='{Name} is {year} years old'     - Print(Names.format (name='Daniel', year=18))#Assigning a value to a temporary variable ->>>daniel is18years old - Print(Name.index ('D'))#gets the subscript for the specified character +>>>0 - Print(Name.isdigit ())#determine if a variable is a certificate +>>>flase A Print(Name.isalnum ())#determine if the variable is an Arabic character (contains numbers and English) at>>>True - Print(Name.isalpha ())#determine if a variable is a plain English character ->>>True - Print(Name.isdecimal ())#judgment variable is 10 binary digits ->>>False - Print(Name.isidentifier ())#judgment is not a valid variable name in>>>True - Print(Name.islower ())#to determine if a variable is lowercase to>>>True + Print(Name.isnumeric ())#determine if a variable has only a number ->>>False the Print(Name.istitle ())#determine if a variable is capitalized (per word) *>>>False $ Print(Name.isprintable ())#determine if you can printPanax Notoginseng>>>True - Print(Name.isupper ())#determine if all are uppercase the>>>False + Print('+'. Join (['1','2','3']))#Add something in the list to ' + ', not str, if the number is ' put in ' A>>>1+2+3 the Print(Name.ljust (50,'*'))#Print 50 characters, not enough to use * instead of on the right +>>>daniel******************************************** - Print(Name.lrjust (50,'*'))#contrary to the above $ Print(Name.lower ())#turn uppercase to lowercase $>>>Daniel - Print(Name.upper ())#turn lowercase to uppercase ->>>DANIEL the Print('\ndanile'. Lstrip)#Delete the left space - Print('daniel\n'. Rstrip)#Delete the space on the rightWuyi Print('\ndaniel\n'. Strip)#Delete all the spaces the Print('danieldd'. replace ('D','D', 1))#replacing the following 1 means replacing only the first one ->>>danieldd Wu Print('Daniel DD'. RFind ('D'))#Locate the rightmost subscript of the specified value ->>>8 About Print('Daniel 1 2 3 4'. Split ())#divides into a list using the specified character as a delimiter, and the default is a space $>>>['Daniel','1','2','3','4'] - Print('Daniel 1 2 3 4'. Splitlines ())#as above, different systems can be identified - Print('Dianiel'. Swapcase ())#uppercase to lowercase ->>>daniel

Day4-python Base 4 string manipulation