程式碼如下：

#include<sys/stat.h>
int CParseJson::emptyDir(const char* destDir)
{
	int ret = 0;
	DIR* dp = NULL;
	struct dirent* entry = NULL;
	struct stat statbuf;
	
	if ((dp = opendir(destDir)) == NULL)
	{
		LOG4CXX_ERROR(logger, "cannot open directory, errno = "<<errno);
		return 2;
	}
	
	while ((entry = readdir(dp)) != NULL)
	{
		if("." == string(entry->d_name) || ".." == string(entry->d_name))
		{
			continue;
		}
		
		string dirT = string(destDir) + "/" + string(entry->d_name);
		lstat(dirT.c_str(), &statbuf);
		//if (!S_ISREG(statbuf.st_mode))
		if(!(statbuf.st_mode & S_IFDIR))
		{
			string temp = string(destDir) + "/" + string(entry->d_name);
			ret = remove(temp.c_str());
			if(ret)
			{
				LOG4CXX_ERROR(logger, "remove file fail, errno = "<<errno);
				closedir(dp);
				dp = NULL;
				return ret;
			}		
		}
		else
		{
			emptyDir(dirT.c_str());
		}
	}
	closedir(dp);
	dp = NULL;
	
	ret = remove(destDir);
	if(ret)
	{
		LOG4CXX_ERROR(logger, "remove dir fail, destDir = "<<destDir);
	}
	return ret;
}