使用C++ CLI循环遍历所有系统文件和文件夹

Question

我发现C#代码可以遍历我们指定的任何目录，我试图将它转换为C++/CLI，并让它遍历所有的系统文件和文件夹。问题是代码让你确定需要扫描的深度级别！我需要的是让它循环所有文件和文件夹，不管深度.我就是这么做的..。有一些例外！

#include "stdafx.h"

using namespace System;
using namespace System::IO;

ref class Scan {
public:
    static int MaxPath=260000000;

    static void ScanMyDir( String^ SourceDir,int RecursiveLevel) {
        if(RecursiveLevel<=MaxPath) {
            array <String^> ^fileEntries = Directory::GetFiles(SourceDir);
            for each (String^ fileName in fileEntries) {
                Console::WriteLine(fileName);
            }
        }
        array<String^> ^SubDirEntries = Directory::GetDirectories(SourceDir);
        for each (String^ subdir in SubDirEntries)
            if ((File::GetAttributes(subdir) & FileAttributes::ReparsePoint)!= FileAttributes::ReparsePoint)
                ScanMyDir(subdir,RecursiveLevel+1);
    }
};

int main(array<System::String ^> ^args) {
    Scan::ScanMyDir("c://",1);
    Console::Read();
    return 0;
}

经过一些修改(仍然有一些错误)：

using namespace System;
using namespace System::IO;

static void ScanMyDir( String^ SourceDir) {
    array <String^> ^fileEntries = Directory::GetFiles(SourceDir);
    for each  (String^ fileName in fileEntries) {
        Console::WriteLine(fileName);
    }
    array<String^> ^SubDirEntries = Directory::GetDirectories(SourceDir);
    for each (String^ subdir in SubDirEntries)
        if ((File::GetAttributes(subdir) & FileAttributes::ReparsePoint)!= FileAttributes::ReparsePoint)
            ScanMyDir(subdir);
}

int main(array<System::String ^> ^args) {
    try {
        ScanMyDir("C://Windows"); 
    }
    catch {
        Console::WriteLine("Some Denied files or Folders");
    }
    return 0;
}

这些都是错误：

错误1错误C2059:语法错误：'{‘c：\Users\Ahmed\ 2010\Projects\eeee\eeee\eeee.cpp \visual studio 2010\Projects\eeee\eeee\eeee.cpp 31

错误6错误C2059:语法错误：'}‘c:\Users\Ahmed\documents\visual studio 2010\Projects\eeee\eeee\eeee.cpp 37

错误8错误C2059:语法错误：'}‘c:\Users\Ahmed\documents\visual studio 2010\Projects\eeee\eeee\eeee.cpp 37

错误5错误C2059:语法错误：‘返回’c:\Users\Ahmed\documents\visual studio 2010\Projects\eeee\eeee\eeee.cpp 36

错误4错误C2061:语法错误:标识符'WriteLine‘c：\Users\Ahmed\ 2010\Projects\eeee\eeee\eeee.cpp \visual studio 2010\Projects\eeee\eeee\eeee.cpp 32

错误7错误C2143:语法错误:缺失';‘之前'}’c:\Users\Ahmed\documents\visual studio 2010\Projects\eeee\eeee\eeee.cpp 37

错误2错误C2309: catch处理程序需要一个括号大小的异常声明c：\Users\Ahmed\ 2010\Projects\eeee\eeee\eeee.cpp \visual studio 2010\Projects\eeee\eeee\eeee.cpp 31

错误3错误C2319：'catch‘必须后面跟着一个复合语句。缺少“{”c：\User\Ahmed\documents\visual studio 2010\Projects\eeee\eeee\eeee.cpp 32

Answer 1

如果删除了该代码的递归级别部分，则应该得到所需的内容。你提到了3个例外，但我没有看到任何东西说明它们是什么。

static void ScanMyDir( String^ SourceDir)
{
array <String^> ^fileEntries = Directory::GetFiles(SourceDir);
for each  (String^ fileName in fileEntries)
{
Console::WriteLine(fileName);
}
array<String^> ^SubDirEntries = Directory::GetDirectories(SourceDir);
for each (String^ subdir in SubDirEntries)
if ((File::GetAttributes(subdir) & FileAttributes::ReparsePoint)!= FileAttributes::ReparsePoint)
            ScanMyDir(subdir);
}
};

Answer 2

为了爱所有神圣的事物，请不要使用递归。我回答了this question for C# here。向C++/CLI的转换是直接的。如果不想这样做，请将其编译到自己的程序集中(并可选择地将其压缩到您的程序集中)。