针对某个集体（比如你所在的班级）中的“人名”设计一个哈希表，使得平均查找长度不超过R，完成相应的建表和查表程序。-For a collective (such as your class) in the　names　design a hash table, making the average to find the length of not more than R, to complete the appropriate procedures to build tables and look-up table.