三部排序，一般的排序有许多经典算法，如快速排序、希尔排序等。但实际应用时，经常会或多或少有一些特殊的要求。我们没必要套用那些经典算法，可以根据实际情况建立更好的解法。比如，三部排序。-Three sorting, generally there are many classic sort algorithms, such as quick sort, Hill sorting. However, practical application, often more or less have some special requirements. We do not need to apply those classic algorithms, you can create a better solution according to the actual situation. For example, three sort.