') # Use the correct key: if request == 'p': key = 'phone' if request == 'a': key = 'addr' # Only try to print information if the name is a valid key in # our dictionary: if name in people: print("{}'s {} is {}.
done using the specified fill character (default is a space) 示例: >>> s = 'hello world' >>> s.center(30,'*') '***hello world***' ljust 返回长度为 width 的字符串,原字符串左对齐,后面填充fillchar 返回一个原字符串左对齐,并使用 fillchar 填充至长度 width 的新字符串,fillchar 默认为...
The ord() function returns an integer value representing the Unicode code point for the given character.At the most basic level, computers store all information as numbers. To represent character data, computers use a translation scheme that maps each character to its associated number, which is ...
6. 运行以上代码后,输出将会在“Hello,”和“World”之间插入换行符,而“is”和“a”之间插入制表符。 ASCII 表与字符关系 为了进一步理解 ASCII 字符的结构,我们可以用关系图来表示字符与它们的 ASCII 值之间的关系。以下是一个用 Mermaid 语法表示的关系图: ASCIIstringCharacterintValueControl_CharactersPrintable_...
Return a copy of the string with only its first character capitalized. For 8-bit strings, this method is locale-dependent. str.center(width[, fillchar]) Return centered in a string of length width. Padding is done using the specified fillchar (default is a space). ...
def rjust(self, width, fillchar=None): # real signature unknown; restored from __doc__ """ S.rjust(width[, fillchar]) -> str Return S right-justified in a string of length width. Padding is done using the specified fill character (default is a space). """ return "" 1. 2. ...
done using the specified fill character (default is a space) 示例: >>> s = 'hello world' >>> s.center(30,'*') '***hello world***' ljust 返回长度为 width 的字符串,原字符串左对齐,后面填充fillchar 返回一个原字符串左对齐,并使用 fillchar 填充至长度 width 的新字符串,fillchar 默认为...
Return S centered in a string of length width. Padding is done using the specified fill character (default is a space) """ return "" # 内容居中,width: 总长度; fillchar:空白处填充内容,默认无 # >>> a # 'Abel' # >>> b = a.center(20, '#') ...
done using the specified fill character (default is a space) """ return "" def count(self, sub, start=None, end=None): # real signature unknown; restored from __doc__ """ 从一个范围内的统计某str出现次数 S.count(sub[, start[, end]]) -> int ...
isidentifier()Returns True if the string is an identifier islower()Returns True if all characters in the string are lower case isnumeric()Returns True if all characters in the string are numeric isprintable()Returns True if all characters in the string are printable ...