linux 杂项

1.随机数

 
unsigned int RandomData(int min,int max)
{
srand((unsigned)time(NULL));
unsigned nA = (unsigned)rand();
unsigned nB  = (unsigned)rand();
return (unsigned)(nA*nB %( max+1-min)+min);
}

double random(double start, double end)
{
return start+(end-start)*rand()/(RAND_MAX + 1.0);
}

2.命令行修改linux时间  ​​点击打开链接​​

下面4个都可以：

date -s "20120827 15:04:00"

或者

date -s "2012-08-27 15:04:00"

或者

date -s "15:04:00 2012-08-27"

或者

date -s "15:04:00 20120827"

3.windows到Linux的程序移植(wine)

​