Introduction - If you have any usage issues, please Google them yourself
1. Using random number methods to generate the page, the page length to L (15 <= L <= 20), L from the console input. 2. According to the page to, respectively, using Optinal, FIFO, LRU page replacement algorithm, statistical missing-page rate. 3. Assumed that the available memory block for m (3 <= m <= 5), m from the console input, the initial operation page not in memory.