谁能告诉我为什么在程序运行完时提示有错误,请发表一点意见?

[zhoubo1234]

在我每次运行完程序,当要结束程序时提示
Microsoft Visual C++ Debug Library 错误 下面我吧错误添出来请大家指教
发表一点意见,能否解决次问题或这样解决或克服这类问题.

错误一:
Microsoft Visual C++ Debug Library

Debug Assertion Fialed!
Program:...FT VISUAL\VC98\新建文件夹\DY1800\DEBUG\DY1800.EXE
File: strcore.cpp
line: 154
For information on how you program can cause an assertion
failure,see the Visual C++ documentation on asserts.
(Press Retry to debug the application)
终止(&A) 重试(&R) 忽阅(&I)

错误二:

Debug Assertion Fialed!
Program:...FT VISUAL\VC98\新建文件夹\DY1800\DEBUG\DY1800.EXE
File:dbgheap.c
line:1017

Expression:_BLOCK_TYPE_IS_VALID(pHead->nBlockUse)

For information on how you program can cause an assertion
failure,see the Visual C++ documentation on asserts.
(Press Retry to debug the application)
终止(&A) 重试(&R) 忽阅(&I)

错误三:
Microsoft Visual C++ Debug Library
Debug Error!
Program:...FT VISUAL\VC98\新建文件夹\DY1800\DEBUG\DY1800.EXE

DAMAGE:before Free block(#0) at 0X007F8AB0.

(Press Retry to debug the application)
终止(&A) 重试(&R) 忽阅(&I)

[explorer007]

只从出错信息上看，应该是内存分配与回收上的问题。

没有原码吗？

[zhoubo1234]

void CKsView::OnButton4()
{
CString s;
if (m_grid1.GetFocusRect()==1)
{
AfxMessageBox("请选择要修改的题目");
return;
}
m_combo1.GetWindowText(s);
if(s=="")
{

AfxMessageBox("请选择要添加的试卷名");
return;
}
if(m_bTableOpened)
{
CloseTable();
}
_RecordsetPtr m_Recordset2;
CREATEINSTANCE(m_Recordset2, Recordset);
CString strSelect;
int istxh,itmbm,iscore;
istxh=1;
itmbm=1;
iscore=10;
strSelect=CString("INSERT INTO wzsjb ")
+ "(stxh,"
+ "tmbm,"
+ "score,"
+ "sjh)"
+ "VALUES(%d,%d,%d,'%s')";
strSelect.Format(CString(strSelect),istxh,itmbm,iscore,s);



try{
m_Recordset2->putref_ActiveConnection(m_piConnection);
m_Recordset2->Open(_bstr_t(strSelect),vtMissing,adOpenDynamic,adLockOptimistic,adCmdText);

}
catch(_com_error &e)
{
_bstr_t bstrSource(e.Source());
_bstr_t bs=_bstr_t("Error:")+_bstr_t(e.Error())+_bstr_t("Msg:")
+_bstr_t(e.ErrorMessage())+_bstr_t("Description:")
+_bstr_t(e.Description());
m_bDataOpened=false;
MessageBox(bs,bstrSource);
return;
}
}

根据我刚才分析是这段子程序用问题 应该是m_combo1.GetWindowText(s);
但是我把s="aa";照样有问题,只有原来程序和界面不加如组合框这控件时无问题.

[rick29]

不妨F10单步调试一下，看看是哪一行的问题。十有八九是内存分配出错。

[zhoubo1234]

程序编译没错,时运行完结束程序时提示有错

[zhoubo1234]

如果我不运行上面原程序的OnButton4() 事件当我关闭程序时不会弹出
Microsoft Visual C++ Debug Library 错误提示
如果我屏蔽上面的void CKsView::OnButton4()
{
/*
..........
*/
}
再运行程序时施行 OnButton4{} 这段空事件. 当结束程序时也弹出另一个错误

Microsoft Visual C++ Debug Library
Debug Error!
Program:...FT VISUAL\VC98\新建文件夹\DY1800\DEBUG\DY1800.EXE
DAMAGE:after Client block(#621) at 0x007FBD40.
(Press Retry to debug the application)
终止(&A) 重试(&R) 忽阅(&I)

本人刚学VC不久,还不知道在程序中也没运用什么内存分配在定义变量时也是常见的几种.
希望大家帮帮小弟.

谢谢!!!!!!!!!!!!!

[AlphaOne]

调试一下看看

[explorer007]

应该是GetWindowText(&s)