本程序用的是“冒泡排序”法，算法是将一个数与后面的数相比较，如果比后面的数大，则交换，如此将所有的数比较一遍后，最大的数就会在数列的最后面。再进行下一轮比较，找出第二大数据，直到全部数据有序。-The procedure used was "bubble sort" method, the algorithm is compared with a number behind the number, if the number is greater than the back, then the exchange, so after comparing all the number again, the largest number in the sequence will be the final surface. And then the next one comparison to find the second largest data until all the data in order.