明解C语言1-9

#include<stdio.h>#include<stdlib.h>int main() {     int a, b, c;     printf("请输入三个整数。\n");     printf("整数1:");     scanf("%d", &a);     printf("整数2:");     scanf("%d", &b);     printf("整数3:");     scanf("%d", &c);     printf("它们的和是%d\n", a + b + c);     system("pause");     return 0; }