cocos2d-x 实现跨平台的目录遍历

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#ifdef _WIN32#include <io.h>#else#include <unistd.h>#include <stdio.h>#include <dirent.h>#include <sys/stat.h>#endif

win32平台引用io.h里面的信息。

主要定义了一个void dfsFolder(string folderPath, int depth = 0);方法对其进行递归遍历。

具体的实现为

 1 void dfsFolder( string folderPath, int depth) 2 { 3 #ifdef WIN32 4     _finddata_t FileInfo; 5     string strfind = folderPath + "\\*"; 6     long Handle = _findfirst(strfind.c_str(), &FileInfo); 7  8     if (Handle == -1L) 9     {10         cerr << "can not match the folder path" << endl;11         exit(-1);12     }13     do{14         //判断是否有子目录15         if (FileInfo.attrib & _A_SUBDIR)    16         {17             //这个语句很重要18             if( (strcmp(FileInfo.name,".") != 0 ) &&(strcmp(FileInfo.name,"..") != 0))   19             {20                 string newPath = folderPath + "\\" + FileInfo.name;21                 dfsFolder(newPath);22             }23         }24         else  25         {26             string filename = (folderPath + "\\" + FileInfo.name);27 28             cout << folderPath << "\\" << FileInfo.name  << " " << endl;29         }30     }while (_findnext(Handle, &FileInfo) == 0);31 32     _findclose(Handle);33 #else34     DIR *dp;35     struct dirent *entry;36     struct stat statbuf;37     if((dp = opendir(folderPath.c_str())) == NULL) {38         fprintf(stderr,"cannot open directory: %s\n", folderPath.c_str());39         return;40     }41     chdir(folderPath.c_str());42     while((entry = readdir(dp)) != NULL) {43         lstat(entry->d_name,&statbuf);44         if(S_ISDIR(statbuf.st_mode)) {45 46             if(strcmp(".",entry->d_name) == 0 ||47                 strcmp("..",entry->d_name) == 0)48                 continue;49             printf("%*s%s/\n",depth,"",entry->d_name);50             dfsFolder(entry->d_name,depth+4);51         } else {52             string filename = entry->d_name;53 54             printf("%*s%s\n",depth,"",entry->d_name);55         }56     }57     chdir("..");58     closedir(dp);59 #endif61 }

chdir 是C语言中的一个系统调用函数（同cd），其中对目录"."及".."进行特殊的判断，因为"."是表示当前目录,".."表示父目录。

如果不进行特殊判定的话则进入死循环。

转自：http://www.cnblogs.com/tickdream/p/3315726.html