直接插入排序 排序过程：整个排序过程为n-1趟插入，即先将序列中第1个记录看成是一个有序子序列，然后从第2个记录开始，逐个进行插入，直至整个序列有序-Direct Insertion Sort to sort the process: the whole process of sorting times for the n-1 insert, that is, first sequence of the first one recorded as an orderly sequence, a