原理为:以数链思想,移动数组中的内容 使数组在没有扩充情况下,达成移动的效果 当然,有更简单的,大牛不要笑哦-The principle is: a few chain of thought, an array of mobile content so that the expansion of the array in the absence of circumstances, to achieve the effect of mobile Of course, there are m