visual studio2022执行代码时按enter键没有反应，只是换行怎么回事

Question

#include<stdio.h>

int main()
{
int number;
int sum = 0;
int count = 0;
scanf_s("%d", &number);
while (number != -1)
{
sum += number;
count++;
scanf_s("%d", &number);
}
printf("%f\n", 1.0 * sum / count);
}

Answer 1

while (number != -1)
循环终止条件是等于-1