类型 str 属性、方法列表
| str | 注释 | 举列 (s='abcdef') |
| __len__ | 串长 len(s) | s.__len__()=6 |
| __iter__ | 迭代器 | for i in s.__iter__():print(i) #逐个列印串的字符 |
| __getitem__ | 索引串的字符 s[i] | s.__getitem__(-1) # ’f' s.__getitem__(5) # ’f'，索引号<len(s) |
| __contains__ | 是否包含某字符 | s.__contains__('a') # True s.__contains__('g') # False |
| capitalize | ||
| casefold | ||
| center | ||
| count | ||
| encode | ||
| endswith | ||
| expandtabs | ||
| find | ||
| format | ||
| format_map | ||
| index | ||
| isalnum | ||
| isalpha | ||
| isascii | ||
| isdecimal | ||
| isdigit | ||
| isidentifier | ||
| islower | ||
| isnumeric | ||
| isprintable | ||
| isspace | ||
| istitle | ||
| isupper | ||
| join | ||
| ljust | ||
| lower | ||
| lstrip | ||
| maketrans | ||
| partition | ||
| replace | ||
| rfind | ||
| rindex | ||
| rjust | ||
| rpartition | ||
| rsplit | ||
| rstrip | ||
| split | ||
| splitlines | ||
| startswith | ||
| strip | ||
| swapcase | ||
| title | ||
| translate | ||
| upper | ||
| zfill | ||
| __add__ | 类同int数据类型的，以下都是 | |
| __class__ | ||
| __delattr__ | ||
| __dir__ | ||
| __doc__ | ||
| __eq__ | ||
| __format__ | ||
| __ge__ | ||
| __getattribute__ | ||
| __getnewargs__ | ||
| __gt__ | ||
| __hash__ | ||
| __init__ | ||
| __init_subclass__ | ||
| __le__ | ||
| __lt__ | ||
| __mod__ | ||
| __mul__ | ||
| __ne__ | ||
| __new__ | ||
| __reduce__ | ||
| __reduce_ex__ | ||
| __repr__ | ||
| __rmod__ | ||
| __rmul__ | ||
| __setattr__ | ||
| __sizeof__ | ||
| __str__ | ||
| __subclasshook__ | ||