在VS2015的MFC项目中对的 ADO数据库连接不成功

Question

//在ADO操作中建议语句中要常用try...catch()来捕获错误信息
try
{
//打开本地SQL数据库Book.mdf
m_pConnection->Open("Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=F:\Summer Holiday homework\Test\Book.mdf;Integrated Security=True;Connect Timeout=30","","",adModeUnknown);

}

catch (_com_error e)
{

    AfxMessageBox(L"数据库连接失败，确认数据库“Book”是否在当前路径下!");
    return;
}

数据库的路径是正确的，为什么连接不上呢
提示错误信息“数据库连接失败，确认数据库“Book”是否在当前路径下!”

![图片说明](https://img-ask.csdn.net/upload/201608/13/1471088274_944313.png)

Answer 1

连接字符串设置为
strConnection = @"Data Source=.\SQLEXPRESS;" +
@"AttachDbFilename=F:\Summer Holiday homework\Test\Book.mdf';" +
@"Integrated Security=True;User Instance=True";