#include <stdio.h>
int main()
{
printf("Hello World!\n");
return 0;
}
# include <stdio.h>
int main(){
printf("%d\n",23+43);
}
# include <stdio.h>
int main(){
printf("23+43=%d\n",23+43);
}
#include <stdio.h>
int main()
{
int price = 0;
printf("请输入金额(元):");
scanf("%d", &price);
int change = 100 - price;
printf("找您%d元。\n", change);
return 0;
}