English | 简体中文 | 繁體中文 | Русский язык | Français | Español | Português | Deutsch | 日本語 | 한국어 | Italiano | بالعربية
Python string methods, a string is a sequence of characters enclosed in quotes. On this reference page, you will find all the methods that a string object can call. For example, you can use the join() method to concatenate two strings. Note: All string methods return a new value. They do not change the original string.
| Method | Description |
|---|---|
| capitalize() | Convert the first character to uppercase. |
| casefold() | Convert the string to lowercase. |
| center() | Return a new string that is centered and padded with spaces to the length width of the original string. |
| count() | Return the number of times the specified value appears in the string. |
| encode() | Return the encoding version of the string. |
| endswith() | If the string ends with the specified value, return true. |
| expandtabs() | Set the tab size of the string. |
| find() | Search for the specified value in the string and return the position where it is found. |
| format() | Format the specified value in the string. |
| format_map() | Format the specified value in the string. |
| index() | Search for the specified value in the string and return the position where it is found. |
| isalnum() | If all characters in the string are alphanumeric, return True. |
| isalpha() | If all characters in the string are in the alphabet, return True. |
| isdecimal() | If all characters in the string are decimal numbers, return True. |
| isdigit() | If all characters in the string are digits, return True. |
| isidentifier() | Return True if the string is an identifier. |
| islower() | Return True if all characters in the string are lowercase. |
| isnumeric() | Return True if all characters in the string are numbers. |
| isprintable() | Return True if all characters in the string are printable. |
| isspace() | Return True if all characters in the string are whitespace characters. |
| istitle() | Return True if the string follows the title case rules. |
| isupper() | Return True if all characters in the string are uppercase. |
| join() | Join the elements of an iterable object to the end of the string. |
| ljust() | Return the left-aligned version of the string. |
| lower() | Convert the string to lowercase. |
| lstrip() | Return the left-trimmed version of the string. |
| maketrans() | Return the translation table used in the conversion. |
| partition() | Return a tuple where the string is divided into three parts. |
| replace() | Return a string where the specified value is replaced with the specified value. |
| rfind() | Search for the specified value in the string and return the last position where it is found. |
| rindex() | Search for the specified value in the string and return the last position where it is found. |
| rjust() | Return the right-aligned version of the string. |
| rpartition() | Return a tuple, where the string is divided into three parts. |
| rsplit() | Split the string at the specified delimiter and return a list. |
| rstrip() | Return the right-trimmed version of the string. |
| split() | Split the string at the specified delimiter and return a list. |
| splitlines() | Split the string at newline characters and return a list. |
| startswith() | Return true if the string starts with the specified value. |
| strip() | Return the truncated version of the string. |
| swapcase() | Toggle case, lowercase becomes uppercase and vice versa. |
| title() | Convert the first character of each word to uppercase. |
| translate() | Return the converted string. |
| upper() | Convert the string to uppercase. |
| zfill() | Fill the beginning of the string with the specified number of 0 values. |
Note: All string methods return a new value. They do not change the original string.
Please Python String Tutorial Learn more about strings in Chinese.