如何获取当前目录? [英] How to get Current Directory?
问题描述
我一直在C#和Delphi中这样做,但C ++是邪恶的。目的是在当前目录(可执行文件正在运行)中创建一个文件。
I've been doing this in C# and Delphi ,but C++ is evil.The purpose is to create a file in the current directory(where the executable is running).
我的代码:
LPTSTR NPath = NULL;
DWORD a = GetCurrentDirectory(MAX_PATH,NPath);
HANDLE hNewFile = CreateFile(NPath,GENERIC_WRITE,0,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
我在GetCurrentDirectory()获得异常。
I get exception at GetCurrentDirectory().
请告诉我为什么我得到一个异常,如何使它更容易在C + +?
Please tell me why I get an exception and how do I make it easier in C++?
推荐答案
在C ++上书之前,你要走得更远,因为这将有助于得到一个更坚实的基础。 Accelerated C ++ by Koenig and Moo is excellent。
I would recommend reading a book on C++ before you go any further, as it would be helpful to get a firmer footing. Accelerated C++ by Koenig and Moo is excellent.
获取可执行路径使用 GetModuleFileName :
char buffer[MAX_PATH]
GetModuleFileName( NULL, buffer, MAX_PATH );
这里有一个C ++函数获取没有文件名的目录:
Here's a C++ function that gets the directory without the file name:
#include <windows.h>
#include <string>
#include <iostream>
using namespace std;;
string ExePath() {
char buffer[MAX_PATH];
GetModuleFileName( NULL, buffer, MAX_PATH );
string::size_type pos = string( buffer ).find_last_of( "\\/" );
return string( buffer ).substr( 0, pos);
}
int main() {
cout << "my directory is " << ExePath() << "\n";
}
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