軟件設計師案例分析當天每日一練試題地址：m.xiexiliangjiufa.com/exam/ExamDayAL.aspx?t1=4

往期軟件設計師每日一練試題匯總：m.xiexiliangjiufa.com/class/27/e4_1.html

軟件設計師案例分析每日一練試題（2024/10/20）在線測試：m.xiexiliangjiufa.com/exam/ExamDayAL.aspx?t1=4&day=2024/10/20

點擊查看：更多軟件設計師習題與指導

軟件設計師案例分析每日一練試題內容（2024/10/20）

試題五（15分）
闖讀下列說明和c++代碼，將應填入(n)處的字句寫在答題紙的對應攔內。
【說明】
欲開發(fā)一個繪圖軟件，要求使用不同的繪圖程序繪制不同的圖形。以繪制直線和圓形為例，對應的繪圖程序如表5-1所示。
表5-1不同的繪圖程序



該繪圖軟件的擴展性要求，將不斷擴充新的圖形和新的繪圖程序。為了避免出現類爆炸的情況，現采用橋接( Bridge)模式來實現上述要求，得到如圖5-1所示的類圖。



圖5-1 類圖
【c++代碼】
class DPl{
public:
static voiddraw_a_line(double  xl ,double  yl ,double x2,double  y2){/*代碼省略*/}
static void draw_a_circle(double x,double y,double r){/*代碼省略*/}
};
ciass DP2{
public:
static void drawline(double xl,double x2,double y1,double y2) {/*代碼省略*/}
static void drawcircle(double x,double y,double r) {/*代碼省略*/}
};
class Drawing{  //簡歷
public:
(1);
(2);
};
classV1Drawing:public Drawing{
public:
void drawLine(double xl,double yl,doublex2，double y2) {/*代碼省略*/}
void drawCrcie(double x, double y, double r){(3);}
classV2Drawing:public Drawing{
public:
void drawLine(double xl,double yl,double x2, double y2) {/*代碼省略*/}
void drawCircle(double x, CIOUbie y,double r{(4);}
};
class Shape{
public:
(5);
Shape(Drawing  * dp}{ _dp = dp;}
void drawLine(double xl, double yl,double x2, double y2){
_dp->drawLine(xl ,y1,x2,y2);}
void drawCircie(double x, double y, double  r){
_dp->drawCircle(x,y,r);}
Private:  Drawing * _dp;
};
class Rectangle:public Shape{
public:
VOid draw() {/*代碼省略*/}
//其余代碼省略
};
ciassCircle:public Shape{
private:  double _x,_y,_r;
public:
Circle(drawing  * dp,double  x, double y, double   r);(6)_{_x = x; _y =y; _r =r;}
void draw(){ drawCircle(_x, _y ,_r);}
};
int main(){
Resume * a = new Resume(“張三” );
a->SetPersonInfo(“男" , "29" );
a-> SetWorkExperience(“1998-2000”, "XXXX公司 " );
Resume * b = (5);
b-> setworkExperience(“2001-2006”, "YYY公司 "  );
return O;
}