mAP = mean_ap(distmat, query_ids, gallery_ids, query_cams, gallery_cams)
print('Mean AP: {:4.1%}'.format(mAP))           # 这个地方的mAP是对的

if (not cmc_flag):
    return mAP

cmc_configs = {
    'market1501': dict(separate_camera_set=False,
                       single_gallery_shot=False,
                       first_match_break=True)
            }
cmc_scores = {name: cmc(distmat, query_ids, gallery_ids,
                        query_cams, gallery_cams, **params)
              for name, params in cmc_configs.items()}

print('CMC Scores:')
for k in cmc_topk:
    print('  top-{:<4}{:12.1%}'
          .format(k,
                  cmc_scores['market1501'][k-1]))
return cmc_scores['market1501'][0], mAP   # 这个地方的mAP就变成了多维向量，貌似没有作均值处理