Gray码是一个长度为2n的序列。序列中无相同元素，每个元素都是长度为n位的串，相邻元素恰好只有1位不同。用分治策略设计并实现一个算法对任意的n构造响应的Gray码。-Gray code is a sequence of length 2n. No similar sequence elements, each element is n-bit string length, the adjacent element is only a difference exactly. With sub-rule strategy was designed and implemented an algorithm for arbitrary n-constructed response Gray codes.