Python core programming chapter sixth exercises

Some methods of string:

String.Split (str) slices a string with the str delimiter (the default is an empty compartment), and if NUM has a specified value, only the NUM substring is delimited.

String.count (str) calculates the number of STR occurrences in a string.

String.find (STR) detects if STR exists in a string, there is a return index value, and 1 is not present.

String.casefold () Change all string characters to lowercase

String.capitalize (str) Change the first character of a string to uppercase

>>> C = ' Hello world! ' >>> c.split () [' Hello ', ' world! '] >>> c.split (' o ') [' Hell ', ' w ', ' rld! ']

>>> C.casefold ()

' Hello world! ' >>> c.capitalize () ' Hello world! ' >>> c.count (' l ') 3>>> c.find (' l ') 2

Python core programming chapter sixth exercises