Python index file code

The code of indexing files in Python can be implemented in the following ways: 1. Use the open() function to open the file, and use the readlines() function to convert the file content into a list; 2. Use the for loop to traverse the list, and use the if statement to 3. If the result of the judgment is true, use the index value to get the specific line in the file; 4. Finally, use the close() function to close the opened file.