CFile 读hex文件发生错误， 访问xxx时发生未知错误
代码
CString fileName;
char* strText = "";
CString data;
fileName = "D:\\HEX\\a1";
//"C:\\Users\\Administrator\\Desktop\\a1"
CFile openfile(fileName, CFile::modeRead);
int i = 0;
openfile.SeekToBegin();
while(openfile.Read(strText, 40) != 0)//调试在这里出问题
{
data.Format("%s", strText);
AfxMessageBox(data);
i++;
openfile.Seek(40*i, CFile::begin);
}
openfile.Close();
在Read时跳转到wincore.cpp文件的LRESULT AFXAPI AfxCallWndProc(CWnd* pWnd, HWND hWnd, UINT nMsg,
WPARAM wParam = 0, LPARAM lParam = 0) 这个函数中lResult = AfxProcessWndProcException(e, &pThreadState->m_lastSentMsg);这句后弹出对话框如图
9 个解决方案
#1
char* strText = "";的长度没有分配 你先分配一个指定大小的空间就没啥了
或者干脆用CString吧
或者干脆用CString吧
#2
正解
用CString 怎么用
用CString 怎么用
#3
#4
CString也有这个问题 就定义个固定大小的指针数组吧 我以前也碰到过 最近学QT MFC有点生疏了块
#5
CFile openfile(fileName, CFile::modeRead);
int len = openfile.GetLength();
strText = new char[len+1];
.
.
delete strText;
int len = openfile.GetLength();
strText = new char[len+1];
.
.
delete strText;
#6
char* pszFileName="C://myfile.txt";
CStdioFile myFile;
CFileException fileException;
if(myFile.Open(pszFileName,CFile::typeText|CFile::modeReadWrite),&fileException)
{
myFile.SeekToBegin();
CString str1;
myFile.ReadString(str1);
CString str2;
myFile.ReadString(str2);
AfxMessageBox(str1+str2);
}
else
{
TRACE("Can't open file %s,error=%u/n",pszFileName,fileException.m_cause);
}
myFile.Close();
CStdioFile myFile;
CFileException fileException;
if(myFile.Open(pszFileName,CFile::typeText|CFile::modeReadWrite),&fileException)
{
myFile.SeekToBegin();
CString str1;
myFile.ReadString(str1);
CString str2;
myFile.ReadString(str2);
AfxMessageBox(str1+str2);
}
else
{
TRACE("Can't open file %s,error=%u/n",pszFileName,fileException.m_cause);
}
myFile.Close();
#7
try
{
CFile openfile(fileName, CFile::modeRead);
while(1)
{
char strText [41] = {0};
if(openfile.Read(strText, 40))
{
CString data(strText);
AfxMessageBox(data);
}
else
{
break;
}
}
openfile.Close();
}
catch(CFileException *e)
{
e->ReportError();
e->Delete();
}
#8
char* strText = "";没有分配空间
#9
char* pszFileName = "C://a1.txt";
CStdioFile myFile;
CFileException fileException;
CString str1 = _T("");
CString temp;
if (myFile.Open(pszFileName, CFile::typeText | CFile::modeReadWrite), &fileException)
{
myFile.SeekToBegin();
while (myFile.ReadString(temp)) {
str1 += temp;
}
}
else
{
TRACE("Can't open file %s,error=%u/n", pszFileName, fileException.m_cause);
}
MessageBox(str1);
myFile.Close();
智能推荐
注意！
本站转载的文章为个人学习借鉴使用，本站对版权不负任何法律责任。如果侵犯了您的隐私权益，请联系我们删除。