In addition, we canaccess just a specific characteror aslice of charactersof a string. We might want to do this, for example, if we have a text that’s too long to display and we want to show just a portion of it. Or if we want to make an acronym by taking the first letter of...
If chars is given and not None, remove characters in chars instead."""return""#把右边的chars截断defrstrip(self, chars=None):#real signature unknown; restored from __doc__"""S.rstrip([chars]) -> str Return a copy of the string S with trailing whitespace removed. If chars is given an...
expandtabs([tabsize]) -> string Return a copy of S where all tab characters are expanded using spaces. If tabsize is not given, a tab size of 8 characters is assumed. """ return "" def find(self, sub, start=None, end=None): """ 寻找子序列位置,如果没找到,返回 -1 """ """ ...
| S.expandtabs([tabsize])-> string | | Return a copy of S wherealltab characters are expanded using spaces. | If tabsizeisnotgiven, a tab size of8charactersisassumed. | | find(...) | S.find(sub [,start [,end]])->int | | Return the lowest indexinS where substring subisfound...
编码默认为sys.getdefaultencoding()。 Errors默认为'strict'。 """ def capitalize(self, *args, **kwargs): # real signature unknown """ Return a capitalized version of the string. More specifically, make the first character have upper case and the rest lower ...
If there are two arguments, they must be strings of equal length, and in the resulting dictionary, each character in x will be mapped to the character at the same position in y. If there is a third argument, it must be a string, whose characters will be mapped to None in the result...
from tokenizers.pre_tokenizers import WhitespaceSplit, BertPreTokenizer# Text to normalizetext = ("this sentence's content includes: characters, spaces, and "\"punctuation.")#Definehelper function to display pre-tokenized outputdef print_pretokenized_str(pre_tokens):forpre_token in pre_tokens:pri...
Remove Characters From a String Using thetranslate()Method The Python stringtranslate()method replaces each character in the string using the given mapping table or dictionary. Declare a string variable: s='abc12321cba' Copy Get the Unicode code point value of a character and replace it withNon...
requests.get(url, proxies=proxies) 1. 2. 3. 4. 使用代理池网站如快代理、芝麻代理等。 2. 验证码识别(OCR) from PIL import Image import pytesseract image = Image.open("captcha.jpg") text = pytesseract.image_to_string(image) print("验证码内容:", text) ...
1、找到标签 获取单个元素 document.getElementById('i1') 获取多个元素(列表)document.getElementsByTagName('div') 获取多个元素(列表)document.getElementsByClassName('c1') a. 直接找 document.getElementById 根据ID获取一个标签 document.getElementsByName 根据name属性获取标签集合 document.getElementsByClassName ...