本文实例类似遍历一个文件夹然后获得该文件夹下的文件列表,可以随意切换文件目录,本来是用在我们小组写的简易ftp服务器上的一个给客户端显示的一个小插件,总之单拿出来应该没啥含量,调用了windows的一些API。
实例代码:
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#include<iostream>
#include<stdlib.h>
#include<windows.h>
#include<fstream>
#include<stdio.h>
#include<vector>
#include<string>
#pragma comment (lib, "winmm.lib")
using namespace std;
void MainMenu()
{
printf ( "请选择操作\n" );
printf ( "1.显示当前文件夹的所有文件\n" );
printf ( "2.返回上一级\n" );
printf ( "3.进入文件夹\n" );
printf ( "4.进入指定文件夹\n" );
printf ( "5.退出\n" );
}
void ShowFileList(string filename)
{
WIN32_FIND_DATAA p;
vector<string> filelist;
HANDLE h = FindFirstFileA(filename.c_str(), &p);
filelist.push_back(p.cFileName);
while (FindNextFileA(h, &p))
{
filelist.push_back(p.cFileName);
if (filelist.back() == "." || filelist.back() == ".." )
{
filelist.pop_back();
}
}
for ( int i = 0; i < filelist.size(); i++)
{
cout << filelist[i] << endl;
}
}
void ShowLastFileList(string & filepath)
{
string filepath2 = filepath;
string tmp = "../" ;
tmp += filepath2;
filepath = tmp;
ShowFileList(tmp);
}
void ShowSelectFileList(string filepath)
{
string yourchoose;
cin >> yourchoose;
yourchoose += '/' ;
string filepath2 = filepath;
yourchoose += filepath2;
ShowFileList(yourchoose);
}
void case4(string filepath)
{
string filename;
cin >> filename;
filename += '/' ;
filename += filepath;
ShowFileList(filename);
}
int main()
{
string filepath;
filepath = "*.*" ;
string filePath = filepath;
while (1)
{
system ( "CLS" );
MainMenu();
int n;
cin >> n;
switch (n)
{
case 1:
system ( "CLS" );
ShowFileList(filePath);
system ( "pause" );
break ;
case 2:
system ( "CLS" );
ShowLastFileList(filePath);
system ( "pause" );
break ;
case 3:
system ( "CLS" );
ShowSelectFileList(filePath);
system ( "pause" );
break ;
case 4:
system ( "CLS" );
case4(filepath);
system ( "pause" );
break ;
case 5:
exit (0);
break ;
default :
break ;
}
}
return 0;
}
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以上就是C++遍历文件夹的相关操作,希望对大家的学习有所帮助。