How to implement string Operation in python

This article is about how python implements string operations. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

String operation

A string is essentially a tuple, but there are many "operations" for strings. The most intuitive are the + and * operations of strings, which represent repetition and concatenation, respectively.

> my_string = "Hi Media...!" > print (my_string * 2) Hi Medium.. Hi Medium! > print (my_string + "I love Python" * 2) Medium...! I love Python I love Python

In addition, if you want to get the reverse string, you can also directly use [::-1] for indexing:

> print (my_string [::-1])!. MuideM iH > my_list = [1 my_list [::-1]) [5, 4, 3, 2, 1]

If the list elements are all strings, we can quickly use the join () method to concatenate all the elements together:

> word_list = ["awesome", "is", "this"] > print ('.join (word_list [::-1]) +'!') this is awesome!

As above, we use the .join () method to concatenate list elements, where "" indicates that the join mode is a space. In fact, this method is often used in natural language processing, for example, if we split a sentence into characters, then the merged processing requires the use of join ().

Thank you for reading! This is the end of this article on "how to implement string operation in python". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!