Question

我发现C＃代码可以循环遍历我们指定的任何目录，我试图将其转换为C ++ / CLI并使其循环遍历所有系统文件＆amp;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＆amp;文件夹无论深度水平......这就是我所做的......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;
}

这些是错误：

错误1错误C2059：语法错误：'{'c：\ Users \ Ahmed \ documents \ 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：'return'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 \ documents \ visual studio 2010 \ Projects \ eeee \ eeee \ eeee.cpp 32

错误7错误C2143：语法错误：缺少';'在'}'c：\ Users \ Ahmed \ documents \ visual studio 2010 \ Projects \ eeee \ eeee \ eeee.cpp 37
之前
错误2错误C2309：catch处理程序期望带括号的异常声明c：\ Users \ Ahmed \ documents \ visual studio 2010 \ Projects \ eeee \ eeee \ eeee.cpp 31

错误3错误C2319：'catch'后面必须跟一个复合语句。缺少'{'c：\ Users \ Ahmed \ documents \ visual studio 2010 \ Projects \ eeee \ eeee \ eeee.cpp 32

Answer 1

如果删除该代码的递归级别部分，则应该拥有所需的内容。你提到了3个例外，但我没有看到任何澄清它们的内容。

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

为了所有圣洁的爱，请不要使用递归。我回答this question for C# here。转换到C ++ / CLI很简单。如果您不想这样做，请将其编译为自己的程序集（并可选择将其组合到您的程序集中）。

循环遍历所有系统文件＆amp;使用C ++ CLI的文件夹

2 个答案: