How to implement variable string in python

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

1. The string is an immutable object and cannot be modified in place. If you need to change the value, you can intelligently create a new string object.

2. When you really need to modify the string in place, you can use the io.StringIO object or the array module, which will not produce a new string object.

Example

> import io > s = "hello world" > sio = io.StringIO (s) > sio > sio.getvalue () # get the value of sio 'hello world' > sio.seek (7) # find the seventh bit of sio > sio.write ("gg") # write a new value 2 > sio.getvalue ()' hello wggld' Thank you for reading! This is the end of the article on "how to implement variable strings in python". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!