Return a centered string of length width.-->返回长度为宽度的居中字符串。 Padding is done using the specified fill character (default is a space).-->填充是使用指定的填充字符完成的(默认为空格) ''' 1. 2. 3. 4. 5. print('abc'.center(9,'-')) 1. 4.count()方法 ''' count() 方法...
it’s worth noting that the combination of a two character keyword (i.e.if), plus a single space, plus an opening parenthesis creates a natural 4-space indent for the subsequent lines of the multiline conditional. This can produce a visual conflict with the indented...
Perform a string formatting operation. The format_string argument can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument. Returns a copy of format_string where each...
Return a list of the words in the string, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done (thus, the list will have at most maxsplit+1 elements). If maxsplit is not specified or -1, then there is no limit on the number of splits (all...
make the first character have upper case and the rest lower case. """ pass def casefold(self, *args, **kwargs): # real signature unknown """ Return a version of the string suitable for caseless comparisons. """ pass def center(self, *args, **kwargs): # real signature unknown ""...
Return True if the string is an alpha-numeric string, False otherwise. A string is alpha-numeric if all characters in the string are alpha-numeric and there is at least one character in the string. """ pass defisalpha(self, *args, **kwargs): # real signature unknown ...
Python语言比起C++、Java等主流语言,语法更简洁,也更接近英语,对编程世界的新人还是很友好的,这也是其显著优点。最近总有人问我Python相关的问题,这些问题也偏基础,自古有句话,授人以鱼不如授人以渔,刚好趁五一时间总结了几篇Python的知识点,帮助小伙伴成功入坑Python,将这门工具语言顺利掌握起来。 Python常用数据...
pencolor(*args)函数表示小乌龟运动轨迹的颜色 允许以下四种输入格式: pencolor()# 这个就是返回一下笔现在是什么颜色的,不是设置颜色 返回以颜色描述字符串或元组 (见示例) 表示的当前画笔颜色 pencolor(colorstring) # 这里面填颜色的英文 设置画笔颜色为 colorstring 指定颜色描述字符串,例如 "red"、"yellow"...
Return trueifall cased characters [4]inthe string are lowercaseandthereisat least one cased character, false otherwise."""判断字符串是否都是小写字母""" str.isspace() Return trueifthere are only whitespace charactersinthe stringandthereisat least one character, false otherwise. Whitespace characters...
Return a capitalized version of the string. More specifically, make the first character have upper case and the rest lower case. """passdefcasefold(self, *args, **kwargs):# real signature unknown""" Return a version of the string suitable for caseless comparisons. """passdefcenter(self,...