在线等，大虾帮忙看看问题在哪？

[skyhawkf119]

各位大虾，
小弟在各位大虾的帮助下，写了如下代码，想实现从一组数据当中，对每类数据实现近似均衡的采样，但发现程序只运行一次就跳出了，请问问题出在哪？？谢谢。

coreNum = 0;
int sampleNum = 0;
int nr_class = sg_info->nr_class;

while (1)
{
int j =0;
// choose a small subset as initialization
while ((j < nr_class)&&(sampleNum < INITIAL_CS))
{
int idx;
int rand32bit = random();
int start = sg_info->start[j];
int count = sg_info->count[j];
int pos = start + (rand32bit%count);
idx = sg_info->perm[pos];
if (chklist[idx] < 1)
{
chklist[idx] = 1;
sampled_flag[idx] = 1;//bug here

coreIdx[coreNum] = idx;
outAlpha[sampleNum] = 1.0/INITIAL_CS;
tempD[sampleNum] = 0.0;

j++;
sampleNum++;
coreNum++;
}
}
break;
}

}

[xylicon]

coreNum = 0;
int sampleNum = 0;
int nr_class = sg_info->nr_class;

while (1)
{
int j =0;
// choose a small subset as initialization
while ((j < nr_class)&&(sampleNum < INITIAL_CS))
{
int idx;
int rand32bit = random();
int start = sg_info->start[j];
int count = sg_info->count[j];
int pos = start + (rand32bit%count);
idx = sg_info->perm[pos];
if (chklist[idx] < 1)
{
chklist[idx] = 1;
sampled_flag[idx] = 1;//bug here

coreIdx[coreNum] = idx;
outAlpha[sampleNum] = 1.0/INITIAL_CS;
tempD[sampleNum] = 0.0;

j++;
sampleNum++;
coreNum++;
}
}
break;
}

}

这个break写在那里当然就会跳出了。

[skyhawkf119]

[Quote=引用 1 楼 xylicon 的回复:]

coreNum  = 0;
int sampleNum = 0;
int nr_class  = sg_info->nr_class;

while (1)
{
int j =0;
// choose a small subset as initialization
while ((j < nr_class)&&(sampleNum < INITIAL_CS))
{
int idx;
int rand32bit = random();
int start    = sg_info->start[j];
int count    = sg_info->count[j];
int pos      = start + (rand32bit%count);
idx      = sg_info->perm[pos];
if (chklist[idx]…
[/Quote]
while (1) 改成sampleNum < INITIAL_CS ，去掉break就好了。
已经明白了，就是不知道有没有更好的写法，您有建议吗？

[tanlee007]

近似均衡的采样？
j < nr_class？
sampleNum < INITIAL_CS？