在Document下再创建一个文件夹

EntityPool存储位置
 

*/
#define K_ENTITYPOOLSAVEFILE [NSHomeDirectory()stringByAppendingPathComponent:@"Documents/EntityPool"]

#define K_XMLDATACACHEFILE [NSHomeDirectory()stringByAppendingPathComponent:@"Documents/XMLCache"]



//创建存储EntityPool的文件夹
         NSError *error;
         [[NSFileManager defaultManager]removeItemAtPath:K_ENTITYPOOLSAVEFILE error:nil];//清除对象缓存文件
         [[NSFileManager defaultManager]createDirectoryAtPath:K_ENTITYPOOLSAVEFILE
                            withIntermediateDirectories:NO
                                         attributes:nil
                                             error:&error];
         
         //创建缓存文件夹
         [[NSFileManager defaultManager]createDirectoryAtPath:K_XMLDATACACHEFILE
                            withIntermediateDirectories:NO
                                         attributes:nil
                                             error:nil];