使用time.h获取C中的当前小时

#include<stdio.h>
#include <time.h>

int main() {
    time_t rawtime;
    struct tm * timeinfo;

    time(&rawtime);
    timeinfo = localtime(&rawtime);

    int hour = timeinfo->tm_hour;
    printf("当前小时数：%d\n", hour);

    return 0;
}