Python 3 Learning Sixth day--python Basics

Sixth day of Python learning

Write this blog to motivate yourself and share your experiences and issues with others.

First, class notes

1. the method that can be invoked must be an object.

2. Basic process of file operation: open--operation--close (focus on operation)

3. The mode of opening the file is: (three most basic mode of operation)

• • R, read-only mode (default).
  • W, write-only mode. "unreadable; not exist; create; delete content;"
  • A, append mode. "Readable; not exist" create; "only append content;"

　　

Python 3 Learning Sixth day--python Basics