GAGA__CHEN的专栏

今天遇到一个问题，想分享一下，以下是运行代码：#include <iostream>int main(int argn, char ** argc){ int int_num = 0xffffff00; //1 unsigned int uint_num = (unsigned int)(int_num); unsigned long long ull_num = (unsigned long long)(uint_num); long lo