c语言的操作符共有15个优先级,如下: Operators Associativity ------------------------------------------------------------------ 运算符 结合性 ------------------------------------------------------------------ () [] -> . left to right ! ~ ++ -- + - * (type) sizeof right to left * / % left to right + - left to right << >> left to right < <= > >= left to right == != left to right & left to right ^ left to right | left to right && left to right || left to right ?: right to left = += -= *= /= %= &= ^= |= <<= >>= right to left , left to right