c ++ 编写一个汽车类, 包含车辆的宽度、长度、高度、重量信息，可以设 定车辆的速度(包括速度的大小和方向, 为了编写方便, 假定只有前后 左右四个方向, 每次改变方向只能左转或者右转).
前后左右可以定义为枚举类型。重点就是改变方向函数么......
#include <iostream>
using namespace std;
typedef enum _movedir
{
move_q = 0, //前
move_r = 1, //右
move_h = 2, //后
move_l = 3 //左
}movedir;
class car
{
private:
movedir md;
float speed;
float width;
float length;
float height;
float weight;
public:
car() {}
car(float s,movedir m,float w,float l,float h,float t)
{
speed = s;
md = m;
width = w;
length =l;
height = h;
weight = t;
}
void turnright()
{
int d = (md+1)%4;
md = (movedir)d;
}
void turnleft()
{
int d = (md+3)%4;
md = (movedir)d;
}
void print()
{
cout<<"车宽:"<<width<<endl;
cout<<"车长:"<<length<<endl;
cout<<"车高:"<<height<<endl;
cout<<"车重:"<<height<<endl;
cout<<"速度:"<<speed<<endl;
cout<<"方向:" ;
switch(md)
{
case move_q:
cout<<"向前";
break;
case move_r:
cout<<"向右";
break;
case move_h:
cout<<"向后";
break;
case move_l:
cout<<"向左";
break;
}
cout<<endl;
}
};
int main()
{
car c(50,move_q,1.9,4.8,1.2,1000);
c.turnright();
c.turnright();
c.turnleft();
c.print();
return 0;
}