设有n*n 的稀疏矩阵，其稀疏因子为γ = 0.5%，装填因子为α = 0.5，用哈希表作为存储结构。以哈希表作为存储结构，实现稀疏矩阵元素的存取并计算平均查找长度。(The sparse matrix with n*n is sparse factor of gamma = 0.5%, the loading factor is alpha = 0.5, and hash table is used as storage structure. Hash table is used as sto