您可以使用简单的切片符号 – [::-1] 来翻转字符串。要替换字符串,可以使用 str.replace(old, new, count)。例如, defrreplace(s,old,new):return(s[::-1].replace(old[::-1],new[::-1],1))[::-1]rreplace('Helloworld, hello world, hello world',
defreplace_last_occurrence(s,old,new):# 从字符串末尾开始查找最后一个匹配项的索引index=s.rfind(old)ifindex==-1:# 如果没有找到匹配项,直接返回原字符串returns# 使用字符串切片和拼接来替换最后一个匹配项returns[:index]+new+s[index+len(old):]# 示例使用original_string="这是一个测试字符串,测试,...
defreplace_last_occurrence(address,old,new):index=address.rfind(old)ifindex==-1:returnaddress# 如果未找到,返回原始字符串returnaddress[:index]+new+address[index+len(old):]address="朝阳街、海淀街、丰台街"new_address=replace_last_occurrence(address,"街","路")print(new_address)# 输出: 朝阳街、...
>>> def rreplace(old, new, occurrence) >>> ... # Code to replace the last occurrences of old by new >>> 'Hello'.rreplace('','</bad>',1) >>> 'Hello</bad>' 原文由 Barthelemy 发布,翻译遵循 CC BY-SA 4.0 许可协议 pythonstring 有用关注收藏 回复 阅读619 2 个回答 得票最新 社...
在Python 中使用 string.replace() 在Python 中获取字符的位置 Python字符串替换多次出现 在索引后找到第一次出现的字符 在Python 中将字符串更改为大写 在Python 中拆分具有多个分隔符的字符串 在Python 中获取字符串的大小 Python中的字符串比较 is vs == ...
Decodes the string using the codec registered for encoding. encoding defaults to the default string encoding. errors may be given to set a different error handling scheme. The default is 'strict', meaning that encoding errors raise UnicodeError. Other possible values are 'ignore', 'replace' and...
Consider the use of the following methods: upper(), lower(), replace(), and find(). Upper() converts a string to its uppercase variant. Lower() converts a string to its lowercase variant. Replace(old,new) replaces the old occurrence of the substring old with the substring new. Find...
replace('Hello' , 'Hallo') # 'Hallo world' 更多字符串方法: 字符串具有各种各样的方法用于测试和处理文本数据。 下面是字符串方法的一小部分示例: s.endswith(suffix) # Check if string ends with suffix s.find(t) # First occurrence of t in s s.index(t) # First occurrence of t in s s...
# Use the optional argument end to change the end string. print("Hello, World", end="!") # => Hello, World! 使用input时,Python会在命令行接收一行字符串作为输入。可以在input当中传入字符串,会被当成提示输出: # Simple way to get input data from console input_string_var = input("Enter so...
If any class was duplicated in this search, all but the last occurrence would be deleted from the MRO list. So, for our earlier example, the search order would be D, B, C, A (as opposed to D, B, A, C, A with classic classes)....