c - 这段代码如何解决？

Question

输入说明:

Your program will be tested on one or more test cases. Each test case is made of a single positive number (0 < n0 < 1, 000, 000).

The last line of the input file has a single zero (which is not part of the test cases.)

我刚刚输入了这样的代码:

int main()
{
    int n0;

    while((scanf("%d", &n0)) != 0)
    {
    ..........
    }

但是为什么输入 0 仍然被处理呢？

Answer 1

while (1) {
  scanf("%d", &n0);
  if (n0==0) break;
  ...
}