帮忙------------一个简单的C++问题,我就是找不到错在那儿?
#include "stdafx.h"
#include <afx.h>
#include <afxcoll.h>
class CAction:public CObject
{
public:
CAction(int nTime)
{
m_nTime=nTime;
}
void PrintTime()
{
TRACE("time=%d/n",m_nTime);
}
private:
int m_nTime;
};
int main(int argc, char* argv[])
{
CAction* pAction;
CObList actionList;
int i;
for (i=0;i<5;i++)
{
pAction=new CAction(i);
actionList.AddTail(pAction);
}
while (!actionList.IsEmpty())
{
pAction=(CAction*)actionList.RemoveHead();
pAction->PrintTime();
delete pAction;
}
pAction=NULL;
return 0;
}
问题点数:20、回复次数:8Top
1 楼fire_up(飞跃星河)回复于 2004-12-01 21:43:02 得分 0
出错提示是什么?Top
2 楼fire_up(飞跃星河)回复于 2004-12-01 22:00:39 得分 4
问题是这样的,你选择了单线程版本的runtime library,请在菜单中选择多线程版本:
project->settings->c++选项卡->选择Gategory下拉菜单中Code Generation->拉下Use run-time Library组合框,选择Multithreaded或者Debug Multithreaded即可正确编译,后者是调试版本的runtime library.Top
3 楼mengjj(世界在变)回复于 2004-12-01 22:02:09 得分 2
因为你只定义了一个指针pAction,但你定义了5个CAction的对象,所以会有问题的,最好也定义个指针数组;你出错的地方应该在
delete pAction;这一句
Top
4 楼fire_up(飞跃星河)回复于 2004-12-01 22:05:24 得分 0
楼上错解,楼主是用while循环删除的。Top
5 楼ponydph(pony)回复于 2004-12-01 22:15:20 得分 0
是TRACE语句有问题,不如换做coutTop
6 楼ponydph(pony)回复于 2004-12-01 22:21:43 得分 4
问题是这样的,你选择了单线程版本的runtime library,请在菜单中选择多线程版本:
project->settings->c++选项卡->选择Gategory下拉菜单中Code Generation->拉下Use run-time Library组合框,选择Multithreaded或者Debug Multithreaded即可正确编译,后者是调试版本的runtime library????????????????????
This macro is available only in the debug version of MFCTop
7 楼mengjj(世界在变)回复于 2004-12-01 22:52:36 得分 0
看错了,收回我的话Top
8 楼hushuangyan74()回复于 2004-12-01 23:33:38 得分 10
你的程序基本上没有问题,我稍微改了一下,有一个要改的重要地方是:
点Project->Setting->Genenal->点Microsoft Foundation Classes:组合框下面的Use MFC in a Shared Dll,就可以编译成功,如还有问题,加我QQ:361577203联系!
#include "stdafx.h"
#include <afx.h>
#include <afxcoll.h>
#include "iostream.h"
class CAction:public CObject
{
public:
CAction(int nTime)
{
m_nTime=nTime;
}
void PrintTime()
{
// TRACE("time=%d/n",m_nTime);
cout<<"time="<<m_nTime<<endl;
}
private:
int m_nTime;
};
int main(int argc, char* argv[])
{
CAction* pAction;
CObList actionList;
int i;
for (i=0;i<5;i++)
{
pAction=new CAction(i);
actionList.AddTail(pAction);
}
while (!actionList.IsEmpty())
{
pAction=(CAction*)actionList.RemoveHead();
pAction->PrintTime();
delete pAction;
}
pAction=NULL;
return 0;
}
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