"Python specification" Python3 file operations

Note: After open, remember to close the file using close

How to use: Open (path + file name, read-in mode, buffer)

Parameters:

R can only read
r+ readable writable does not create files that do not exist from the top of the writing will overwrite the contents of the previous location
w+ readable writable If the file exists then overwrite the entire file does not exist then create
W can only write overwrite the entire file does not exist then create
A can only write from the bottom of the file add content does not exist then create
A + readable writable read from the top of the file add content from the bottom of the file does not exist then create

Common code:

With open ("X.txt") as f:    data = F.read () does    something with data

　　

"Python specification" Python3 file operations