defget_last_index_of(string,char):""" 获取字符最后一次出现的位置 :param string: 要查找的字符串 :param char: 要查找的字符 :return: 字符最后一次出现的位置 """returnstring.rfind(char) 1. 2. 3. 4. 5. 6. 7. 8. 在这个函数中,我们直接返回string.rfind(char)的结果,即字符最后一次出现的位...
python # 定义字符串 my_string = "Hello, world! Hello, everyone!" # 使用rfind()方法查找子串"Hello"最后一次出现的位置 last_index = my_string.rfind("Hello") # 输出结果 print(f"子串'Hello'在字符串中最后一次出现的位置是: {last_index}") 在这个示例中,rfind() 方法会返回子串 "Hello" 在m...
deffind_last_occurrence(string,substring):returnstring.rfind(substring)string="Hello, World!"substring="o"index=find_last_occurrence(string,substring)print(f"The last occurrence of '{substring}' is at index{index}.") 1. 2. 3. 4. 5. 6. 7. 输出结果为: AI检测代码解析 The last occurrence...
Strings can beconcatenatedto build longer strings using the plus sign and also they can bemultipliedby a number, which results in the continuous repetition of the string as many times as the number indicates. Also, if we want to find out thelengthof the string, we simply have to use thelen...
root_elem = etree.fromstring(rsp_data) namespaces = {'file-operation': 'urn:huawei:yang:huawei-file-operation'} mpath = '{}'.format('dir') for file_tmp in root_elem.findall(mpath, namespaces): file_name = file_tmp.find("file-name", namespaces) elem = file_tmp.find("dir-name",...
or to sys.stdout bydefault.Optional keyword arguments:file:a file-likeobject(stream);defaults to the current sys.stdout.sep:string inserted between values,defaulta space.end:string appended after the last value,defaulta newline.flush:whether to forcibly flush the stream.Type:builtin_function_or_...
find 是从左起始查找,对应的从右开始查找的方法是rfind() Method Description: This method returns the last index where the substringstris found, or .1 if no such index exists, optionally restricting the search to string[beg:end]. Syntax: ...
String.substring --> String String.concatenation --> String Find Last Occurrence String.rfind --> String Handle Non-Existence String.rfind --> Integer Integer.condition --> String Find the Last Occurrence of a Character in a String 以上就是如何在Python中找到字符串中某个字符最后出现的位置...
find("b")) # 1 print(string.find("c")) # 2 print(string.find("z")) # -1 4.3 rfind函数 函数rfind功能和find类似,但是该函数返回的是最后出现子串的位置索引而不是首次出现的位置索引。 举例如下: string = "abcabc" print(string.rfind("a")) # 3 -> index of last-found "a" 5. ...
'__sizeof__', '__str__', '__subclasshook__', '_formatter_field_name_split', '_formatter_parser', 'capitalize', 'center', 'count', 'decode', 'encode', 'endswith', 'expandtabs', 'find', 'format', 'index', 'isalnum', 'isalpha', 'isdigit', 'islower', 'isspace', 'istitle'...