About the slash in the path of Python reading the file

I. Problem description

Recently, I used Python to read the file and found that using '\' would report an error.

 

2. Cause analysis

'\' Is an escape character for Python. If there are special characters such as '\ t' or '\ r' in the path, '\' cannot play the role of directory jump, so an error is reported. The solution is to tell the system that '\' is not an escape character, and '\\' plays such a role. Here is an example.

 

Three. Problem solving

method one:

# Absolute path double backslash (Python in \ an escape effect) 
with Open ( ' E: \\ \\ use data.txt ' ) the file_object AS: 
    Contents = file_object.read ()
     Print (contents.rstrip () )

Method 2:

# Plus r tells the system to escape are not escape 
with Open (r ' E: \ use \ data.txt ' ) the file_object AS: 
    Contents = file_object.read ()
     Print (contents.rstrip ())

Method 3:

# Using an absolute path forward slash 
with Open ( ' E: /use/data.txt ' ) AS the file_object: 
    Contents = file_object.read ()
     Print (contents.rstrip ())