1.time.time()/clock()
https://www.cnblogs.com/bettermanlu/archive/2011/09/19/2181529.html
The former wall clock time, the time which the processor CPU.
Wall clock time is also known as the elapsed time or run time. Compared with the CPU time, wall clock time is usually longer, because the measurement program execution CPU may also execute instructions other programs at the same time.
2.reload(sys)
https://blog.csdn.net/qq_36711420/article/details/79382327
The main conversion encoding format
3.