为何下列程序不输出ok?intmain(){uintanswer
int main() { uint answer = 16; uint input = 400; if ( ((answer + 1<<2) * (answer + 1<<2)) <= input) cout<<"ok"<
因为 < <优先级低于+的优先级,所以: an swer + 1<<2 结果是: (answer + 1)<<2 = 68 所以:(a ns wer + 1<<2) * (an sw er + 1<<2))的结果是:4628 条件当然不成立了