C++遍历文件夹

C++遍历文件夹的代码如下：

                    

  #include<iostream>   
  #include<string>   
  #include<io.h>  
  using namespace std; 

  void   visit(string path,int layer)   
  {   
          struct _finddata_t   filefind;   
          string  curr=path+"\\*.*";   
          int   done=0,i,handle;   
          if((handle=_findfirst(curr.c_str(),&filefind))==-1)return;     
          while(!(done=_findnext(handle,&filefind)))   
          {   	
              printf("%s\n",filefind.name);    
              if(!strcmp(filefind.name,"..")){
		 continue;
              }
              for(i=0;i<layer;i++)cout<<"     ";	    	    	
              if((_A_SUBDIR==filefind.attrib)) //是目录
                  {           
		    printf("----------%s\n",filefind.name);    
                    cout<<filefind.name<<"(dir)"<<endl;   
                    curr=path+"\\"+filefind.name;   
		 }   
             else//不是目录，是文件     
                {   
                          cout<<path+"\\"+filefind.name<<endl;  
               }   
          }           
          _findclose(handle);               
  }   
  int   main()   
  {           
          string   path; 
          cout<<"请输入目录"<<endl;   
          cin>>path;
          visit(path,1);   
          system("PAUSE");   
          return   0;     
  }