Shulou(Shulou.com)06/02 Report--

This article mainly explains "how to solve the problem of invalid replacement of python replace function". The explanation in this article is simple and clear, easy to learn and understand. Please follow the ideas of Xiaobian and study and learn "how to solve the problem of invalid replacement of python replace function" together!

str = "hello,china! "str.replace("hell","well")print(str)

hello，China!

Process ended, push code 0

When writing code, I found that after such replacement, there was no replacement success.

Reason:

Strings are immutable objects in Python.

So the string replace needs to be reassigned to generate a new object.

There was no re-reference before, so the variable pointed to the previous object, which had actually changed, but it was not re-referenced.

So to print out the replaced string, you need to re-assign it, as follows:

str = "hello,china! "str = str.replace("hell","well")print(str)

hello,china!

Process ended, push code 0

This way you can replace it successfully!

Thank you for reading, the above is "how to solve the python replace function replacement invalid problem" content, after the study of this article, I believe we have a deeper understanding of how to solve the python replace function replacement invalid problem, the specific use of the situation also needs to be verified by practice. Here is, Xiaobian will push more articles related to knowledge points for everyone, welcome to pay attention!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.