scanf_s("%d", &a[i]); 注意数组也要加&
#include <stdio.h>
#include <stdlib.h>
int main() {
//int a[5] = 0;
//int a[5] = { 0,1,2,3,4 };
int a[5];
int i = 0;
scanf_s("%d", &a[i]);
while (i<4) {
i++;
scanf_s("%d", &a[i]);
}
for (i = 0;i < 5;i++) {
printf("%d ", a[i]);
}
//printf("%d", a[5]);//越界但不报错
return 0;
}