下面程序的执行结果是( )。
#include＜iostream＞
using namespace std;
class building
public:
building（　）
building(unsigned stories, float breadths, float lengths)
story = stories; breadth = breadths; length = lengths;
void getstory(void)
cout＜＜"story is:"＜＜story＜＜endl;
void getarea(void)
area = length*breadth*story;cout＜＜"area is:"＜＜area＜＜endl;
private:
unsigned story;
float length;
float breadth;
float area;
;
void main(void)

building b1,b2;building b3(10u,16.6,58.8);
b1.getstory（　）;
b1.getarea（　）;
b2.getstory（　）;
b2.getarea（　）;
b3.getstory（　）;
b3.getarea（　）;

题库:计算机等级考试 类型:最佳选择题 时间:2017-07-03 15:45:55 免费下载:《单项选择》Word试卷

下面程序的执行结果是( )。
#include＜iostream＞
using namespace std;
class building
public:
building（　）
building(unsigned stories, float breadths, float lengths)
story = stories; breadth = breadths; length = lengths;
void getstory(void)
cout＜＜"story is:"＜＜story＜＜endl;
void getarea(void)
area = length*breadth*story;cout＜＜"area is:"＜＜area＜＜endl;
private:
unsigned story;
float length;
float breadth;
float area;
;
void main(void)

building b1,b2;building b3(10u,16.6,58.8);
b1.getstory（　）;
b1.getarea（　）;
b2.getstory（　）;
b2.getarea（　）;
b3.getstory（　）;
b3.getarea（　）;

A.story is:0
area is:0
story is:0
area is:0
story is:10
area is:9760.8
B.story is:null
area is:null
story is:null
area is:null
story is:10
area is:9760.8
C.前两个对象输出的结果是不定的，后一个对象的结果正确
D.前两个对象没有初值，因此程序编译时出错

本题关键词:行为结果,面试程序,行为结果评价,竣工结算程序,行政诉讼程序,结果,执行过程组,程序,结果均,下果藤;