这是本人购买的小四轴飞行器里面的源代码，可以供大家学习一下，注释还是比较清晰的，另，关于四轴的定高没有开源所以看不到。-This is I buy small four axis inside the aircraft s source code, can be to learn from, comment is clear, the other, about four axis fixed high no open source so can t see.