There are several built-in methods that allow us to easily make modifications to strings in Python. In this tutorial we will cover the .upper(), .lower(), .count(), .find(), .replace() and str() methods.But first, let’s take a look at the len() method. While it’s not limit...
4.7.1. String Methods str.capitalize() --> String 返回字符串,其首字母大写,其余部分小写 str.casefold() --> String字符串转换成小写,用于不区分大小写的字符串比较 str.casefold() --> String字符串转换成小写,用于不区分大小写的字符串比较 str.center(width[, fillchar]) -->String 指定长度(此处是...
2. center(width[, fillchar]) View Code 3. count(sub, start= 0,end=len(string) View Code 4. decode(encoding='UTF-8',errors='strict') encode(encoding='base64',errors='strict') View Code 5. endswith(suffix[, start[, end]]) View Code 6. expandtabs(tabsize=8) View Code 7.find(...
❮ String Methods ExampleGet your own Python Server Where in the text is the word "welcome"?: txt ="Hello, welcome to my world." x = txt.find("welcome") print(x) Try it Yourself » Definition and Usage Thefind()method finds the first occurrence of the specified value. ...
StartFind[label="字符串存在"]NotFound[label="字符串不存在"] 在状态图中,Start表示查找的起始状态,Find表示查找子字符串的过程,NotFound表示子字符串不存在的状态。通过状态图,我们可以更直观地理解和描述这个过程。 参考文献: Python官方文档:[String Methods](...
There are a bunch of fun methods for transforming our string text. Among those that are more important to understand to make real-world applications we can find thelower(),upper(), strip(), count()andjoin()methods. Thestrip()method is useful when dealing with user input as it gets rid...
如果大家想看原版的,可以去这个网址看(https://docs.python.org/2/library/stdtypes.html#string-methods),但是这里是我自己的实践以及一些理解。 1.str.capitalize() 返回第一个字母大写的str str ="a string"str.capitalize() 'A string' 2.str.center(width[,fillchar]) ...
Working of Python string's find() and rfind() methods Example 1: find() With No start and end Argument quote ='Let it be, let it be, let it be'# first occurance of 'let it'(case sensitive) result = quote.find('let it') ...
Methods to Find a String in a List 1. Using theinOperator (Fastest for Membership Testing) Theinoperator is the most straightforward way to check if a string is present in a list. It is also the fastest method for membership testing, making it a great choice for simple checks. Here’s...
print(str.find(str1, 8)) #-1 1. 2. 3. 4. 5. 6. index(str, start=0, end=len(string)) 函数 功能 功能上与 find() 相同,只是在未找到子字符串是抛出异常 用法 str.index(str, start=0, end=len(string)) 参数 同find() 返回值 ...