本地文件

-(NSMutableDictionary *)localFile {    NSString *path = [[NSBundle mainBundle] bundlePath];    NSFileManager *fm = [NSFileManager defaultManager];    NSDirectoryEnumerator *dirEnum = [fm enumeratorAtPath:path];    NSString *fileName;    NSMutableDictionary *R = [NSMutableDictionary dictionary];    while (fileName = [dirEnum nextObject]) {        NSLog(@"短路径:%@", fileName);        NSLog(@"全路径:%@", [path stringByAppendingPathComponent:fileName]);        if ([fileName hasSuffix:@".png"]) {            NSString *key = [fileName componentsSeparatedByString:@"/"].lastObject;            [R setObject:fileName forKey:key];        }    }    return R;}