#include<stdio.h>int main(){int x; int y;y = x * x + 2 * x - 10;scanf("%d", &x);printf("%d", y);return 0;}
改成这个试试
#include<stdio.h> int main() { int x; int y; y = x * x + 2 * x - 10; scanf_s("%d", &x); printf("%d", y); return 0; }