Concise summary of Python string processing functions _python

Returns a string that is stripped of the specified character

Remove white space characters by default

Remove the end character: Str.strip ([char])
Delete First character: Str.lstrip ([char])
Delete tail character str.strip ([char])

Determines whether to match the first end character

Match successfully returns true, otherwise returns false
Match first character: Str.startswith (char[, start[, end])
Match last character: Str.endswith (char[, start[, end])

Finds the character, finds the return character position, or returns-1

Find Str.find from the beginning of a string (char[, start[, end])
Start looking at Str.find (char[, start[, end])

Exploded characters

Str.split ([Sep [, Maxsplit]])

Connection characters

Str.join (iterable)
"Str" is a concatenation character, and "iterable" is a concatenated, iterated string.

Substitution character

Str.replace (old, new [, Count])
Returns the replaced string, count identifies the number of substitutions, and all characters are replaced by default

Break string by newline character, return list of rows

Str.splitlines ([keepends])
The result does not preserve line breaks unless keepends is true.

Case conversion

Case Exchange: Str.swapace ()
Convert to uppercase: Str.upper ()
Convert to lowercase: str.lower ()