有以下程序#includevoidfun(int*a，int*b){int*c;c=a;a=b;b=c;}main(){intx=，y=，*p=&x，*q=&y;fun(p，q);printf(“%d，%d，”，*p，*q);fun(&x，&y);printf(“%d，%dn”，*p，*q);}程序运行后的输出结果是()A，，，B，，，C，，，D，，，