任何人都可以帮助我了解这部分 python 代码是什么意思吗？

Question

我想知道这一小部分代码是什么意思，因为在脚本创建的文件中，它似乎在最后添加了一行，我相信它可能是这些符号之一

opened_file.write("%s\n" %user_input)

Answer 1

It writes a line. The content of user_input replaces the %s (see string interpolation in the docs) and \\n is the newline character - after user_input .

Here is a good description of the different "inserting data into strings" methods, including % interpolation (which is now considered outdated):

https://realpython.com/python-string-formatting/