用GROVER搜无序数据库中的任一个数，把该数找出来，即找出该数在数据库中的下标。由于量子并行性计算的特点，精度高，迭代步数少-GROVER search disorderly database in any of a number, the number to find out, that is, to find out the subscr ipt of the number in the database. Due to the characteristics of quantum par