C语言 输入3个数后,求它们的平均值,然后输出其中与平均值之差的绝对...答:{ return (a+b+c)/3;} main(){ double a, b, c, ave, difA, difB, difC;printf("Input 3 numbers, seperated by space and finished by Enter:\n");scanf( "%lf %lf %lf", &a, &b, &c );ave = average( a, b, c );/*如果不需要打印平均数,就把下面这行注释掉*/ ...