In the process of using Python, you will encounter split () and Os.path.split () two functions when working with strings, and their main differences can be summed up as a previous search string, and the latter from a backward search '. ' (Reverse search).
Os.path.splitext () is used more in the search file path (path) and file extension (EXT), which together form the complete path, and if the normal split () function is used to obtain the extension, then the efficiency is very low.
The specific code can be seen in comparison:
Import osos.path.splitext ('hellopythonworld.png')
' Hellopythonworld.png '. Split ('. ')
In the same string, we can see that if the split () function is going to traverse a lot of characters from the go-back, then the prefix traversal will be a few characters.
The difference and application of Split and Splitext in Python