Python Full stack Development learning note-04. Fourth day

1. Parameters of the function, reference 2.  Lambda expression 3. Python's built-in function 4. Recursive 5. File operations

1. Open File

Open (file name/file path, open mode, encoding)

Open mode: R read-only mode, default is read-only

W write mode, unreadable; Create a file that does not exist; Clears the contents of the file if it exists

X write mode, unreadable, file does not exist, create one, file exists, error

A append mode. The file does not exist, a file is created, and if the file exists, it is appended with new content.

2. Operating files

3. Close the file

6. Job

Python Full stack Development learning note-04. Fourth day