筛选法求素数 关键词——置零

<span style="font-family: Arial, Helvetica, sans-serif;">#include <stdio.h></span>

<span style="font-family: Arial, Helvetica, sans-serif;">#define v 10000</span>

void main()
{
int a[v],i,j,k,m,n;
for (i=0;i<v;i++)
{
a[i]=i;
}
for (i=3;i<v;i++)
{
for (j=2;j<a[i];j++)
{
if (a[i]%j==0)
{
a[i]=0;
}
}
}
m=0;
for (i=2;i<v;i++)
{
if (a[i]!=0)
{
printf("%5d\n",a[i]);
m++;
}
}
printf("total:%d\n",m);
}