zipArchive

 ZipArchive *unZip = [[ZipArchive alloc]init];

  if ([unZip unzipOpenFile:savePath]) {

        BOOL ret = [unZip unzipFileTo:createDic overwrite:YES];

        if (ret == YES) {

             NSLog(@"zip success");

          [unZip closeZipFile];

        }

}    

注意：zipArchive不支持中文文件名，图片