以下转换代码摘自维基百科 Wikipedia：
/* The purpose of this function is to convert an unsigned binary number to reflected binary Gray code. The operator >> is shift right. The operator ^ is exclusive or. */ unsigned int binaryToGray(unsigned int num) { return (num >> 1) ^ num; } /* The purpose of this function is to convert a reflected binary Gray code number to a binary number. */ unsigned int grayToBinary(unsigned int num) { unsigned int mask; for (mask = num >> 1; mask != 0; mask = mask >> 1) { num = num ^ mask; } return num; }