A recursive function is a self-called function that calls itself directly or indirectly in the function body. However, you must set the self-called conditions. If the conditions are met, the function itself is called, if not, terminate the self-calling of the function, and then return the main control right of the current process to the previous function for execution.
Recursive functionsFor self-called functions, you can call yourself directly or indirectly in the function body, but you need to set the self-called conditions. If the conditions are met, the function itself is called, if not, terminate the self-calling of the function, and then return the main control right of the current process to the previous function for execution.
Let's look at a classic recursive delete function.
Function: delete all files under the Directory and delete the directory.
Function Code: