for(i= 3; i<n; i++) I if (primecount = A size A resize(primecount 10) if(i%2==0) continue j=3 while(j<=i/2&&i %j!=0) j+=2 if (j>1/2)AL primecount++ for(i=0;i< primecount;i++)/输出质数 i cout<<setw(5<<ALi if(i+1)%10==0)//每输出10个数换行一次 cout < endl coutsendlfor(i = 3; i < n; i++) { if (primecount == A.size()) A.resize(primecount + 10); if (i % 2 == 0) continue; j = 3; while (j <= i/2 && i % j != 0) j += 2; if (j > i/2) A[primecount++] = i; } for (i = 0; i<primecount; i++)//输出质数 { cout<<setw(5)<<A[i]; if ((i+1) % 10 == 0) //每输出10个数换行一次 cout << endl; } cout<<endl; } 16