if 'names' not in locals(): names = yaml_load(data)['names'] if data else [f'class{i}' for i in range(999)] if names[0] == 'n01440764' and len(names) == 1000: # ImageNet names = yaml_load(ROOT / 'data/ImageNet.yaml')['names'] # human-readable names
时间: 2024-02-06 07:04:41 浏览: 191
这段代码主要是对变量 `names` 进行了一系列的操作。下面是每行代码的注释:
```python
# 如果变量 `names` 没有定义在本地变量中
if 'names' not in locals():
# 如果有数据,则从数据中读取 `names`,否则创建一个长度为 999 的类名列表
names = yaml_load(data)['names'] if data else [f'class{i}' for i in range(999)]
# 如果变量 `names` 的第一个元素是 'n01440764' 且 `names` 的长度为 1000,则表明其为 ImageNet 数据集
if names[0] == 'n01440764' and len(names) == 1000: # ImageNet
# 将 `names` 替换为人类可读的名称
names = yaml_load(ROOT / 'data/ImageNet.yaml')['names'] # human-readable names
```
总体来说,这段代码用于检测数据集的类型,并将其转换为人类可读的名称。如果 `names` 变量没有被定义在本地变量中,则创建一个默认的类名列表。如果 `names` 变量的第一个元素为 `n01440764`,长度为 1000,则说明该数据集为 ImageNet 数据集,需要将其转换为人类可读的名称。
相关问题
def index(request): if Team.objects.count() == 0: init() data_list = Team.objects.all() # teamname = request.GET.get('teamname') print(teamname) if teamname: data_list = data_list.filter(teamname__icontains=teamname) else: teamname = '' data_list = data_list.order_by("-winrate") return render(request, 'index.html', locals())
这段代码的作用是:定义一个名为“index”的函数,该函数接收一个名为“request”的参数。如果数据库中的Team对象数量为0,则调用init()函数进行初始化。然后将所有Team对象查询出来,并赋值给名为“data_list”的变量。
解释一下这段代码def price(request): if request.method == "GET": contact_list = models.zufang.objects.values_list().order_by('id') contact_list = [i for i in contact_list] new_contact_list = random.sample(contact_list, 3) user_name = models.Collection.objects.get(name=request.session.get('user_name')) if user_name.count > 0: collection = user_name.collection collection = collection.split(",") collection = [int(i) for i in collection] find_index = [] for item in collection: find_index.append(models.zufang.objects.values_list().filter(id=item)[0]) find_index = [i for i in find_index] else: collection = [] find_index = [] if request.GET.get("update_item") == "ok": return JsonResponse({"new_contact_list": new_contact_list, "find_index": find_index}, safe=False) return render(request, 'price.html', locals()) else: user_name = models.Collection.objects.get(name=request.session.get('user_name')) count = user_name.count if user_name.count > 0: collection = user_name.collection collection = collection.split(",") else: collection = [] if request.POST.get("new") == "true": count += 1 new_collection = request.POST.get("data_id") collection.append(new_collection) collection = ','.join(collection) new = models.Collection.objects.get(name=request.session.get('user_name')) new.collection = collection new.count = count new.save() else: count -= 1 new_collection = request.POST.get("data_id") collection.remove(new_collection) collection = ','.join(collection) new = models.Collection.objects.get(name=request.session.get('user_name')) new.collection = collection new.count = count new.save() return JsonResponse({}, safe=False)
这段代码是一个 Django 后端函数,名为 price,它处理 GET 和 POST 请求。对于 GET 请求,它从数据库中获取租房信息,并随机选取3个展示,并根据用户是否登录和是否已经收藏,返回对应的信息。对于 POST 请求,它根据用户的行为,将租房信息添加到或删除到用户的收藏列表中,并返回一个空的 JSON 响应。
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