CLOCK改进算法,　　按照最多5块的内存分配情况，编程实现所选算法，动态输入访问内存的块号序列，输出置换结果；

　　测试：输入合法、非法的访问序列数据，检查程序的正确性和健壮性。-CLOCK algorithm improvements, in accordance with up to five memory allocation in programming to the selected algorithm, the dynamic input access memory block number sequence, the output displacement results　test: Enter legal, illegal access to sequence data, check the correctness of the program and robust sex.