c++对文件进行操作之遍历双层文件结构

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/*本代码实现遍历双层次层次的目录结构*/
#include<stdio.h>
#include<iostream>
#include<io.h>
#include<cstring>
using namespace std;
const char path[100]="F:/OCR/*";
int main()
{
	struct _finddata_t fileinfo;
	char rootname[100];
	long handle;
	handle=_findfirst(path,&fileinfo);
	if(handle==-1)
	{
		cout<<"文件路径错误..."<<endl;
		return 0;
	}
	else
	{
		do{
			if((fileinfo.attrib & _A_SUBDIR) && (strcmp(fileinfo.name,".")!=0) && (strcmp(fileinfo.name,"..")!=0) ) //用来判断一个文件是不是文件夹
			{
				int num=0;
				long subhandle;//子文件夹的句柄
				char subpath[100];//子文件夹的路径
				strcpy(subpath,path);  subpath[strlen(path)-1]='\0'; //把path中的*去掉
				strcat(subpath,fileinfo.name); strcat(subpath,"/*"); //生成新的子路径
				struct _finddata_t subinfo;//子文件夹下用来遍历的结构体
				subhandle=_findfirst(subpath,&subinfo);
				if(subhandle==-1)
				{
					cout<<"子文件"<<fileinfo.name<<"打开失败"<<endl;
				}else
				{
					do{
						num++;
						cout<<subinfo.name<<endl;
					}while(_findnext(subhandle,&subinfo)==0);
					_findclose(subhandle);
					cout<<"如上所示文件"<<fileinfo.name<<"共有"<<num-2<<"个文件"<<endl<<endl;/*因为我在
					遍历子文件夹的时候没有去判断 .和..这两种特殊文件，原谅我有点偷懒了*/
				}
			}
			else
			{
			   if(!fileinfo.attrib & _A_SUBDIR)	
				  cout<<fileinfo.name<<endl;
			}	
		}while(_findnext(handle,&fileinfo)==0);
		_findclose(handle);
	}
	return 0;
}