转自:http://blog.csdn.net/maocl1983/article/details/6221810#include <cstdlib>#include<iostream>#include<time.h>#include<stdio.h>usingnamespacestd;intmain(intargc,char*argv[]) { time_t tNow=time(NULL); time_t tEnd= tNow +1800;//注意下面两行的区别structtm* ptm = localtime(&tNow);...