构建一个哈希表，并输出哈希表及其平均查找长度。chash()函数构建Hash表，dhash（）输出Hash表和平均查找长度-Build a hash table and print out the table and the average search length（ASL）. Function chash () builts Hash table, dhash () print outthe Hash table and the average search length.

多种HASH算法的小程序，包括CRC32、SHA、MD5-HASH algorithm for small variety of procedures, including CRC32, SHA, MD5, etc.