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...
str.find(sub[, start[, end]] ) find() Parameters Thefind()method takes maximum of three parameters: sub- It is the substring to be searched in thestrstring. startandend(optional) - The rangestr[start:end]within which substring is searched. find() Return Value Thefind()method returns an...
str.find(sub,start,end) Parameters : sub :It’s the substring which needs to be searched in the given string. start :Starting position where sub is needs to be checked within the string. end :Ending position where suffix is needs to be checked within the string. NOTE :If start and end...
Theindex()method is used to find the index of the first occurrence of a specified element in a list. This method is particularly useful when you need to know the position of a specific element within a list. Here’s an example of how to use theindex()method to find the index of the...
Again, if I wanted to find out how long is my string,I can use the len function. 或者,如果我想访问该字符串的第一个或最后一个元素,我可以使用我的通用序列操作。 Or if I wanted to access say the first or the last element of that string,I can use my common generic sequence operations....
>>> str='string lEARn' >>> str.find('z') #查找字符串,没有则返回-1,有则返回查到到第一个匹配的索引 -1 >>> str.find('n') #返回查到到第一个匹配的索引 4 >>> str.rfind('n') #返回的索引是最后一次匹配的 11 >>> str.index('a') #如果没有匹配则报错 Traceback (most recent...
Open Compiler str1="Hello! Welcome to Tutorialspoint."str2="to";result=str1.find(str2,25)print("The index where the substring is found:",result) The output of the above program is displayed as follows - The index where the substring is found: -1 ...
S.find(sub[, start[, end]]) -> int Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation. Return -1 on failure. ...
String常用内置函数-Python .find() AI检测代码解析 # find:查找字符串中是否包含某个子串 str="We can probably do anything we set our minds to." str_son0="can" str_son1="Hello World" print(str.find(str_son0)) # 3 print(str.find(str_son1)) # -1...
s.find('peach')# 返回第一次出现的位置 1. 7 1. Docstring: S.find(sub[, start[, end]]) -> int Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation. ...