Python file Operations (ii)

Tag: Lock file read-only operation Python path exists open files line

I. Read and write files

1. Locate the file

File path:./test.py

2. Open File

Open (' File path ', ' mode ')

Mode:

R, open in read-only mode

W, open a file for writing only, such as file already exists, directly rewrite

A, open a file for Append mode

w+, open a file for read-write

File ()

3. File operation (read/write)

Read () #所有文件读入内存

ReadLines () #以行为元素的列表

Write () #写入文件

WriteLine () #写入一行文件

4. Close the file

Close ()

Python file Operations (ii)