#include<fstream>打开输入文件

#include<fstream>
using namespace std;
int main()
{ifstream ins;
ins.open("D:\Program Files\Microsoft Visual Studio\sue\sue.dat");
ins.close();
return 0;
}
======================这是程序
=========================================================
Loaded 'ntdll.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\kernel32.dll', no matching symbolic information found.
The thread 0xD1C has exited with code 0 (0x0).
The program 'D:\Program Files\Microsoft Visual Studio\game\Debug\Cpp1.exe' has exited with code 0 (0x0).
======================这是DEBUG

为什么会这样呢？我想要用 ifstream 创个文件 以后好练习读取。。
大家来帮我看看。。

#include <iostream> #include<iostream.h 关于 #include<> #include<vector> #include<algorithm>是什么意思啊？ #include<stdio.h> #include<format.h> #include <graphics.h> C++的#include<> #include <iostream.h> #include<windows.h>