#include <stdio.h> main(){ int x, y, m; printf("please input x and y\n"); scanf("%d%d", &x, &y); m = x * y; printf("%d*%d=%d\n", x, y, m);}初次运行失败,提示C6031:返回值被忽略“scanf”,后查找解决办法来自以下链接,三种方法都可以https://blog.csdn.net/weixin_42417585/article/details/104859754