import re string = 'bobby hadz bobbyhadz.com' indexes = [ match.start() for match in re.finditer(r'bob', string) ] print(indexes) # 👉️ [0, 11] Alternatively, you can use a for loop. # Find all indexes of a substring in a String using a for loop This is a four-step...
find() Return Value Thefind()method returns an integer value: If the substring exists inside the string, it returns the index of the first occurence of the substring. If a substring doesn't exist inside the string, it returns-1. Working of find() method Working of Python string's find()...
find 函数在不同的编程语言和库中可能有不同的实现方式和参数。然而,在许多情况下(尤其是在字符串处理中),find 函数的三个常见参数通常用于指定要搜索的字符串、目标子串以及可选的起始位置。以下是一个通用的描述,以 Python 中的 str.find() 方法为例:Python...
In this article, we will learn about different methods to find substring within a string in JavaScript, including Regular expressions and built-in JavaScript methods.
Write a Python program to determine the index of a given string at which a certain substring starts. If the substring is not found in the given string return 'Not found'. Sample Solution: Python Code: # Function to find index of substring ...
0 - This is a modal window. No compatible source was found for this media. Example If the substring is not found in the given range, then '-1' is printed as output. Following is an example for this. str1="Hello! Welcome to Tutorialspoint."str2="to";result=str1.find(str2,25)prin...
string的方法find 官方解释:find(sub[, start[, end]]) Return the lowest index in the string where substring sub is found within the slice s[start:end]. Optional arguments start and end are interpreted as in slice notation. Return -1 if sub is not found.(返回在切片s [start:end]中找到...
七、String类 (Stringstr):获取str在字符串对象中第一次出现的索引Stringsubstring(int start):从start开始截取字符串Stringsubstring(int start,int...1、String类:(关于字符串)字符串的储存是在方法的常量池中,为了方便字符串的使用String构造方法String(Stringoriginal):把字符串数据封装成字符串对象 ...
字串符相关 split() 字串符分隔 substring() 提取字符串 substr()提取指定数目的字符 parseInt() 函数可解析一个字符串,并返回一个整数。 split() 方法将字符串分割为字符串数组,并返回此数组. stringObject.split(separator,limit) 我们将按照不同的方式来分割字符串: 使用指定符号分割字符串,代码如下: var my...
python script.py somefile.in somefile.out To replace thefirstoccurrence of a pattern with a given string, use${parameter/pattern/string}: #!/bin/bash firstString="I love Suzi and Marry" secondString="Sara" echo "${firstString/Suzi/$secondString}" ...