error LNK2019, 寻求帮助！！！

[傻傻de点点]

#ifndef BUGMANAGER_H
#define BUGMANAGER_H

#include "Bug.h"
#include "Hunter.h"

#include "hge.h"
#include "hgesprite.h"

struct BugAttribute
{
BugAttribute();

BugAttribute( float _x, float _y, float _dx, float _dy, bool _alive )
{
x = _x;
y = _y;
dx = _dx;
dy = _dy;
alive = _alive;
}

float x,y;
float dx,dy;
bool alive;
};

class CBugManager
{
public:

CBugManager(HGE* hge);
~CBugManager();

bool Catch();

void Render();
void Update();


private:

HGE* m_pHge;

CHunter* m_pHunter;
BugAttribute* m_pAttribute;

CSlowBug* m_pSlowBug;
CFastBug* m_pFastBug;
CCleverBug* m_pCleverBug;
CBoss* m_pBoss;

int m_iControlNumber;
int m_iRandomNumber;

};

#endif //BUGMANAGER_H


1>BugManager.obj : error LNK2019: unresolved external symbol "public: __thiscall BugAttribute::BugAttribute(void)" (??0BugAttribute@@QAE@XZ) referenced in function "public: __thiscall CBugManager::CBugManager(class HGE *)" (??0CBugManager@@QAE@PAVHGE@@@Z)


寻求高手帮忙，谢谢了！

[wuyu637]

没有实现bugAttribute()这个函数，或者是实现了这个函数的.cpp文件没有包含到这个工程中。

[baihacker]

BugAttribute(); 
没有实现?

[9527他大爷]

BugAttribute(); 函数定义呢？

[king_water]

给struct BugAttribute 定义个对象，然后 对象.BugAttribute

[xkyx_cn]

// 如没有初始化工作，直接给个空函数体即可
BugAttribute() {} 

[K行天下]

BugAttribute() 没有定义