2 ways to replace Python strings _python

Python string substitution is a frequently encountered problem with python manipulating strings, and here is a brief introduction to the string substitution method.

Python string substitution can be implemented in 2 ways:
1 is the method of using the string itself.
2 replacing strings with regular

Here's an example to experiment with:
A = ' Hello word '
Replace word in a string with Python

1, with the string itself replace method

Copy Code code as follows:

A.replace (' word ', ' python ')

The result of the output is Hello Python

2, the use of regular expressions to complete the replacement:

Copy Code code as follows:

Import re
Strinfo = Re.compile (' word ')
b = strinfo.sub (' python ', a)
Print B

The result of the output is also Hello Python

As to which method to use, look at your own choice.