以下程序的运行结果是#include<iostream.h> void sub(int x,int y,int *z){*z=y-x;}void main()
以下程序的运行结果是 #include<iostream.h> void sub(int x,int y,int *z) { *z=y-x;} void main() { int a,b,c; sub(10,5,&a) ; sub(7,a,&b) ; sub(a,b,&c) ; cout << a <<","<< b <<"," << c << endl;}
A.5,2,3
B.-5,-12,-7
C.-5,-12,-17
D.5,-2,-7