int get_yesterday()
{
time_t now = time(NULL);
struct tm *cur = localtime(&now);
cur->tm_mday -= 1;
mktime(cur);
int yesterday = (cur->tm_year + 1900) * 10000 + (cur->tm_mon + 1) * 100 + cur->tm_mday;
return yesterday;
}
int get_yesterday()
{
time_t now = time(NULL);
struct tm *cur = localtime(&now);
cur->tm_mday -= 1;
mktime(cur);
int yesterday = (cur->tm_year + 1900) * 10000 + (cur->tm_mon + 1) * 100 + cur->tm_mday;
return yesterday;
}
#include <stdio.h>
#include <time.h>
int get_yesterday()
{
time_t now = time(NULL);
struct tm *cur = localtime(&now);
cur->tm_mday -= 1;
mktime(cur);
int yesterday = (cur->tm_year + 1900) * 10000 + (cur->tm_mon + 1) * 100 + cur->tm_mday;
return yesterday;
}
int main () {
printf("%d", get_yesterday());
return 0;
}
20191003
我这里对的啊
你是不是时区设置得不对?