Introduction - If you have any usage issues, please Google them yourself
Experiment operating system process creation and deletion of 1) the use of dynamic or static method to generate a process tree (the process of the number of ≥ 20) 2) the design of the process of revocation algorithm 3) the realization of the process of withdrawal function, the use of cascading revocation way 4) dynamically revocation process 5) to observe the process of dynamically tree situation 6) test procedure and the correct result.