void CFFDlg::OnBnClickedButton2()
{
CString out;
CString s = "ACBV<啦饿啊>ASDA"; int start = 0;
int count = 5;USES_CONVERSION;
WCHAR* wc = A2W((LPSTR)(LPCSTR)s);
WCHAR* wd = new WCHAR[];
wcsncpy(wd,wc+start,count);
wd[count] = '\0';
CString ss(wd); AfxMessageBox(ss);
}AfxMessageBox是对的,结果对话框退出的时候出错
{
CString out;
CString s = "ACBV<啦饿啊>ASDA"; int start = 0;
int count = 5;USES_CONVERSION;
WCHAR* wc = A2W((LPSTR)(LPCSTR)s);
WCHAR* wd = new WCHAR[];
wcsncpy(wd,wc+start,count);
wd[count] = '\0';
CString ss(wd); AfxMessageBox(ss);
}AfxMessageBox是对的,结果对话框退出的时候出错
意味着你已经出现野指针了,应该改成:
WCHAR* wd = new WCHAR[50];
最后加上:
delete []wd;
这样才能正确释放内存!