说明：  监控用户指定任意进行的内存使用情况，并输出log日志，作为后期检查是否有内存泄露而用，非常有用，还在迷茫的小伙帮们快来
(Monitoring the user to specify any of the memory usage, and outputs the log log, as late check for memory leaks, very useful, still confused young man come to help)