Python learning 4, strings

Strings are mainly based on memorization, just play more.

_author_ = "Happyboy"

name = "my \tname is happyboy and i am 66 year old"

print (name.capitalize()) #capitalize   the first letter 
print (name.count( ' a ' ))   # count how many a 
print (name.center(50, " - " )) # need 50 strings 
print ( name.endswith( " oy " )) #Determine whether oy ends 
print (name.expandtabs(tabsize=30)) #Set a few spaces in the string \t 
print (name[name.find( " name " ):] ) #String slice 
print (name.isalnum()) #Determine whether this is Arabic numerals plus English 
print( ' abA ' .isalpha()) #Test whether this is in English 
print ( ' 1A ' .isdecimal())
 print ( ' 1A ' .isdigit()) #Test whether this is an integer 
print ( ' d1A ' .isidentifier() ) #Test if this is a valid identifier 
print ( ' 33.33 ' .isnumeric()) #Test if this is a number 
print ( ' 33A ' .isspace()) #Test if this is a space 
print ( ' My Name Is' .istitle()) #Test whether each first letter is capitalized 
print ( ' My Name Is ' .isprintable()) #Test whether this can be printed, the string is basically useless 
print ( ' My Name IS ' .isupper ()) #Test if it is all uppercase 
print ( ' + ' .join([ ' 1 ' , ' 2 ' , ' 3 ' , ' 4 ' ])) # Turn the list into a string 
print (name.ljust( 50, ' * ' )) #Guaranteed string length of 50, not enough / make up 
print (name.rjust(50, " - " )) #Same as above 
print ( ' Happyboy ' .lower()) #All lowercase print ( ' Happyboy ' .upper ( )) # All uppercase print ( '     \nHappyboy ' .lstrip()) #to the left space and carriage return print ( ' Happyboy\n     ' .rstrip()) #to the right space and carriage return print ( '      Happyboy\n     ' .strip ()) #



Remove all spaces and carriage returns 

p = str.maketrans( " abcdef " , ' 123456 ' )   #assign abcdef to 123456 
print ( " abcdef " .translate(p))   #output abcdef

print ( ' Happyboy ' .replace( ' b ' , ' B ' )) #Replace b with B 
print ( ' Happyboy ' .rfind( ' H ' )) #Check the rightmost character, the character starts from 0 
print ( ' 1+2+3+4+5 ' .split( ' + ' )) #Split the string out 
print ( ' 1+2\n+3+4+5 ' .splitlines()) #Automatically recognize newlines 
print ( 'Happyboy' .swapcase()) #The first letter is lowercase, the others are all uppercase 
print ( ' HappyBoy ' .title()) #The first letter is uppercase, the rest are all lowercase 
print ( ' HappyBoy ' .zfill (50)) #Autocomplete