C++检测字母字符串中各元音字母数量

#include iostream
#include vector
#include Windows.h
#include conio.h

#define KEY_DOWN(vk_c) GetAsyncKeyState(vk_c)&0x8000

using namespace std;

void main()
{
cout  this program works for finding aeiou from any word offered  endl;
vectorchar str;
char a;
int i;
bool notletter;
bool empty;
bool quit;
int counter[5];
while (1)
{
notletter = false;
empty = false;
str.clear();
for (int k = 0; k  5; k++)counter[k] = 0;
cout  ======input a word ended by enter,or press esc to exit=======  endl;
quit = false;
while (!quit)
{
if (KEY_DOWN(VK_ESCAPE))quit = true;