Cited live content quoted string is called: the symbol can be double quotes, single quotes, three marks.
String object common method
capitalize: Let string initial capital letters.
center so that the string center, a space filled with default.
count: Statistics string, number or a character string that appears
encode: specify the code parameter, a string into bytes (byte decode method)
Slice character in the string 'xxx' and Unicode strings u'xxx 'may be regarded as a list, each element is a character. Thus, the string may be a slice operation, but the operation is still the result string. In many programming languages, it offers a lot of variety for a string interception function, in fact, the purpose is to string sections. Python is not taken for the function string, only a slice slicing operation can be completed (Slice) may acquire sub-string (part of a string) from a string. We use the square brackets, starting offset start, termination end offset step and optional steps to define a slice.
The operation can be completed slicing operation (Slice) may acquire sub-string (part of a string) from a string. We use the square brackets, starting offset start, termination end offset step and optional steps to define a slice.
[:] Extracted from the beginning (default position 0) to the end (the default position -1) of the entire string
[Start:] extracted from the start to the end
[: End] extracted from the beginning to end - 1
[Start: end] extracted from the start to the end - 1
[Start: end: step] extracted from the start to the end - 1, each step extracting a left character position of the first character / offset 0, the right of the last character position / offset is -1 the following is a string type and output formats
| - ljust () # Left
| - rjust () # right justified
| - count () # statistics string, number or a character string that appears
| - decode Method encode / # of bytes specified by the coding parameter string into bytes (must master)
| - endswith # judge the string is not in the end xxx
| - startswith # what began
| - find # and index the same way as the characters find difference is that the query does not exist, returns -1
| - rfind # Find last
| - index # query string or character index position in the string
| - rindex # Find last
| - format # format string, recommended
| - isalnum # judge only the string of numbers and letters
| - isalpha # judge the string is not only letters
| - isdigit # judge is not a string of numbers
| - isdecimal # judge is not a string of numbers
| - islower # judge is not all lowercase string
| - isupper # judge the string is not all uppercase
| - istitle # judge is not title
| - isspace # judge is not a space
| - join # string concatenation
| - split # accordance with specific symbols split the string, the result is a list of
| - lower # the string converted to lowercase letters
| - upper # the string of letters are converted to uppercase
| - strip # Clear clear space
| - rstrip # Clear a space on the right
| - lstrip # Clear a space on the left