Adding some characters to the string is known as Padding or filling and is useful when you wanted to make a string with a specific length. In Python, rjust() method can be used to pad spaces at the beginning of
print str.center(30,'=')#子序列的个数(字母在字符串中出现了几次)print str.count('l')#是否已什么结尾 print str.endswith('o')#是否已什么开始 print str.startswith('H')#处理tab键 str2='Hello\t999'print str2.expandtabs()#寻找子序列位置,没有找到返回-1,返回了是1print str.find('a')#...
Return a copy of the string s with upper case characters converted to lowercase and vice versa. """ return s.swapcase() # Strip leading and trailing tabs and spaces def strip(s, chars=None): """strip(s [,chars]) -> string Return a copy of the string s with leading and trailing w...
"""zfill(x, width) -> string 460. 461. Pad a numeric string x with zeros on the left, to fill a field 462. of the specified width. The string x is never truncated. 463. 464. """ 465. if not isinstance(x, basestring): 466. x = repr(x) 467. return x.zfill(width) 468. ...
我们明确设置序列开始( bos_token )、序列结束( eos_token )、未知( unk_token )和填充( pad_token )标记。 接下来,我们将添加一些常规设置: Copyconfig.update({ "model_max_length": 32768, # Maximum sequence length the model can handle "tokenizer_class": "PreTrainedTokenizerFast", # Specify the ...
"" return urllib.parse.unquote(encoded_string) # 示例 decoded_string = url_decode_string("search%20query%20with%20spaces") print(f"URL 解码后的字符串: {decoded_string}") # search query with spaces 4. 日期与时间处理 Python的 datetime 模块提供了丰富的日期和时间处理功能。 案例31: 获取...
Pi 曾经有一个名为 Leafpad 的编辑器,但现在它只是一个功能齐全但没有名字的轻量级编辑器,类似于 Ubuntu 的 gedit,Mac 的 TextEdit 或 Windows 的 TextPad。要打开它,点击 Pi 桌面左上方的树莓图标,然后选择“文本编辑器”(图 2-7 )。图2-7打开默认文本编辑器...
"" """ S.zfill(width) -> string Pad a numeric string S with zeros on the left, to fill a field of the specified width. The string S is never truncated. """ return "" def _formatter_field_name_split(self, *args, **kwargs): # real signature unknown pass def _formatter_parser(...
You can use thestring.rjust(),string.ljust()orstring.center()function to left-justify, right-justify or center a string of given width by padding it with spaces: You can use thestring.zfill()function to pad a numeric string on the left with zeros: ...
: # real signature unknown; restored from __doc__ """ S.zfill(width) -> str Pad a numeric string S with zeros on the left, to fill a field of the specified width. The string S is never truncated. """ return "" 1. 2. 3. 4. 5. 6. 7.8. View Code 举个例子 = ...