toLowerCase() 字符串中所有字母都转小写 其他方法 trim(): 去除两端的空格 replace(char oldChar, char newChar):用新字符替换字符串中所有老字符 replace(CharSequence target, CharSequence replacement):用新字符串替换字符串中所有老字符串 int compareTo(String anString ) 根据两个字符串中的字符在编码表中...
提取的结果可能是一个列表,你可能需要对其进行进一步的处理,比如去除重复的字符。 unique_letters=list(set(lowercase_letters))# 去除重复 1. 步骤5:(可选)使用循环或条件语句进行更复杂的字符提取 如果你需要根据更复杂的条件提取字符,你可以使用循环和条件语句。 complex_extraction=[charforcharinoriginal_stringifc...
defljust(self, width, fillchar=None):# real signature unknown; restored from __doc__""" S.ljust(width[, fillchar]) -> str Return S left-justified in a Unicode string of length width. Padding is done using the specified fill character (default is a space). """return"" 用法实例 str...
S.lower() -> str Return a copy of the string S converted to lowercase. """return"" 示例: s2 ='TIELEYUMAO'#全部转换成小写字母s3 = s2.lower()print(s3) 返回的结果是:tieleyumao 3)对字符串操作居中(center): S.center(width[, fillchar]) -> str 记忆方法:center,中心。 注:需要填参数wid...
def center(self, width, fillchar=None): >> > c.center(50, "-") '---Alex Li---' def count(self, sub, start=None, end=None): """ S.count(sub[, start[, end]]) -> int >>> s = "welcome to apeland" >>> s.count('e') ...
lower() -> string Return a copy of the string S converted to lowercase. """ return "" def lstrip(self, chars=None): """ 移除左侧空白 """ """ S.lstrip([chars]) -> string or unicode Return a copy of the string S with leading whitespace removed. If chars is given and not None...
""" Return a copy of the string converted to lowercase. 返回转换为小写的字符串副本。""" pass def lstrip(self, *args, **kwargs): # real signature unknown """ Return a copy of the string with leading whitespace removed. If chars is given and not None, remove characters in chars instea...
lower(...) S.lower() -> str Return a copy of the string S converted to lowercase. 返回值字母大写转换为小写,大转小 实例: a = “START” a.lower() start (4)str.upper() Help on method_descriptor: upper(...) S.upper() -> str Return a copy of S converted to uppercase. ...
/** * Mybatis-Plus工具类 */ public class MPUtil { public static final char UNDERLINE = '_'; //mybatis plus allEQ 表达式转换 public static Map allEQMapPre(Object bean,String pre) { Map<String, Object> map =BeanUtil.beanToMap(bean); return camelToUnderlineMap(map,pre...
The error handling scheme to use for encoding errors. The default is 'strict' meaning that encoding errors raise a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and 'xmlcharrefreplace' as well as any other name registered with ...