关系运算符的优先级 运算符优先级:算术运算符高 低 d=b+2==3 d=(b+2)==3) a= c关系运算符的优先级 运算符优先级： 算术运算符 高 < <= > >= == != = 低 d = b+2 == 3 d = ((b+2) == 3) b - 1 == a != c ((b – 1) == a) != c