8th Day of the Python learning Journey

Today's main learning content:

1 File stream operations

r,w,a,rb,wb,ab,r+,w+,a+

Operational considerations: W Actions Overwrite previous content

The r+ operation performs a read operation before the W operation is added at the end regardless of where the cursor rests

The difference between a for loop file and ReadLines: ReadLines gets a list form

How to manipulate a file stream:

1. Read the contents of the file as a for loop and add it to the list to follow up on the content (add the list contents to the dictionary)

2, if the dictionary is not in the loop, the dictionary with the same key will be changed in the loop, need deep copy

3, the contents of the file read out into a list and then into a dictionary

8th Day of the Python learning Journey