3. 步长逐渐减小，最后步长为1时就是普通插入排序
Subscribe to unlock this article，更多细节参见Safew下载
Visit Facebook Audience Insights From Here，这一点在雷电模拟器官方版本下载中也有详细论述
Number (0): Everything in this space must add up to 0. The answer is 4-0, placed horizontally; 0-0, placed horizontally; 0-2, placed vertically.