求助： 对路径“C:\Documents and Settings”的访问被拒绝。

#include<iostream>
using namespace System;
using namespace System::IO;
using namespace System::Collections::Generic;

bool Seek_Harddisk_Partition(List<String^>^ list) //查找硬盘有几个分区
{
    char diskpart[4] = { 'C',':','\\','\0' };
    String^ _disk = gcnew String(diskpart);
    if(!Directory::Exists(_disk))
        return false;
    while (Directory::Exists(_disk))
    {        
        list->Add(_disk);
        diskpart[0] += 1;
        _disk = gcnew String(diskpart);
    }
    return true;
}
int CharOccurrenceNumber(String^ Str, String^ Ch) //查找路径中‘\’出现次数，来判断当前是第几层目录
{
    int Ret = 0;
    while(Str->IndexOf(Ch) != -1)
    {
        Ret++;
        Str = Str->Substring(Str->IndexOf(Ch) + 1);
    }
    return Ret;
}
void Seek_Directory(String^ _path)
{
    if (Directory::GetFiles(_path, "*.sln") != nullptr) //如果目录中，同时有.sln文件和.VS子目录，就删除.VS子目录
    {
        if (Directory::Exists(_path + "\.VS"))
            Directory::Delete(_path + "\.VS");
    }
    if (CharOccurrenceNumber(_path, "\\") < 5)                //寻找5层目录，
    {
        array<String^>^ PathList = Directory::GetDirectories(_path);
        for each (auto i in PathList)
            Seek_Directory(i);
    }
}
int main()
{
    List<String^>^ DiskList = gcnew List<String^>();
    if (!Seek_Harddisk_Partition(DiskList))
        return -1;
    for each (auto i in DiskList)
        Seek_Directory(i);

    return 1;
}