爱本泡沫多脆弱

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爱本泡沫多脆弱 2025-02-20 20:48:53

您似乎在这里进行映射操作。在这种情况下,您可以使用MAP并返回asyncmapsequece

func blurredFaces() -> AsyncMapSequence<AsyncStream<SourceImage>, BlurredImage> {
    sourceImages().map { image in
        await withCheckedContinuation { continuation in
            blurrImage(image) { blurred in
                continuation.resume(returning: blurred)
            }
        }
    }
}

如果您可以进行Blurrimage async,则可以更短:

func blurredFaces() -> AsyncMapSequence<AsyncStream<SourceImage>, BlurredImage> {
    // you can even inline this, and get rid of blurredFaces
    sourceImages().map(blurrImage)
}

You seem to be doing an mapping operation here. In that case, you can use map and return an AsyncMapSequence:

func blurredFaces() -> AsyncMapSequence<AsyncStream<SourceImage>, BlurredImage> {
    sourceImages().map { image in
        await withCheckedContinuation { continuation in
            blurrImage(image) { blurred in
                continuation.resume(returning: blurred)
            }
        }
    }
}

If you can make blurrImage async, then this can be even shorter:

func blurredFaces() -> AsyncMapSequence<AsyncStream<SourceImage>, BlurredImage> {
    // you can even inline this, and get rid of blurredFaces
    sourceImages().map(blurrImage)
}

如何实现返回异步序列的函数,其结果依赖于另一个异步序列

爱本泡沫多脆弱 2025-02-20 18:04:38

您应该使用:

output = Concatenator.run(*my_list)

You should use :

output = Concatenator.run(*my_list)

在行中调用所有列表元素以放入函数

爱本泡沫多脆弱 2025-02-20 17:41:34

您可以使用WebDriver仿真浏览,也可以像这样调用GraphQl API:



import requests

headers = {
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0',
    'Accept': '*/*',
    'Accept-Language': 'en-US,en;q=0.5',
    'x-gql-country': 'US',
    'x-gql-access-token': '7422fb01-fe49-11ec-b208-a93cbb385750',
    'x-gql-guid': 'GA1.2.1984313165.1657235201',
    'x-gql-language': 'en',
    'x-gql-operation-name': 'CategoryProductSearch',
    'Origin': 'https://www.sigmaaldrich.com',
    'Sec-Fetch-Dest': 'empty',
    'Sec-Fetch-Mode': 'cors',
    'Sec-Fetch-Site': 'same-origin',
    'Referer': 'https://www.sigmaaldrich.com/US/en/products/materials-science/biomedical-materials/polymerization-tools?country=GB&language=en&cmsRoute=products&cmsRoute=materials-science&cmsRoute=biomedical-materials&cmsRoute=polymerization-tools&page=1%22%27',
    'Connection': 'keep-alive',
}

json_data = {
    'operationName': 'CategoryProductSearch',
    'variables': {
        'searchTerm': None,
        'page': 1,
        'perPage': 20,
        'sort': 'relevance',
        'selectedFacets': [
            {
                'key': 'facet_web_product_area',
                'options': [
                    'S281',
                ],
            },
        ],
        'facetSet': [
            'facet_product_category',
            'facet_web_polymer_arch_functionality',
            'facet_web_polymer_arch_shape',
            'facet_fwght',
            'facet_web_greener_alternative_principles',
            'facet_web_markush-class',
            'facet_web_markush-group',
            'facet_melting_point',
            'facet_physical_form',
            'facet_web_react_suitability_reagent_type',
            'facet_brand',
        ],
    },
    'query': 'query CategoryProductSearch($searchTerm: String, $page: Int!, $perPage: Int!, $sort: Sort, $selectedFacets: [FacetInput!], $facetSet: [String]) {\n  getProductSearchResults(input: {searchTerm: $searchTerm, pagination: {page: $page, perPage: $perPage}, sort: $sort, group: product, facets: $selectedFacets, facetSet: $facetSet}) {\n    ...CategoryProductSearchFields\n    __typename\n  }\n}\n\nfragment CategoryProductSearchFields on ProductSearchResults {\n  metadata {\n    itemCount\n    page\n    perPage\n    numPages\n    __typename\n  }\n  items {\n    ... on Product {\n      ...CategorySubstanceProductFields\n      __typename\n    }\n    __typename\n  }\n  facets {\n    key\n    numToDisplay\n    isHidden\n    isCollapsed\n    multiSelect\n    prefix\n    options {\n      value\n      count\n      __typename\n    }\n    __typename\n  }\n  __typename\n}\n\nfragment CategorySubstanceProductFields on Product {\n  name\n  productNumber\n  productKey\n  isMarketplace\n  marketplaceOfferId\n  marketplaceSellerId\n  attributes {\n    key\n    label\n    values\n    __typename\n  }\n  brand {\n    key\n    erpKey\n    name\n    color\n    __typename\n  }\n  images {\n    altText\n    smallUrl\n    mediumUrl\n    largeUrl\n    __typename\n  }\n  description\n  paMessage\n  __typename\n}\n',
}

response = requests.post('https://www.sigmaaldrich.com/api', headers=headers, json=json_data)
data = response.json()

您可能不需要所有的标头键,有些键可能在一段时间后可能不会有效。但这将为您提供所需内容的数据对象。

一旦有了指向化合物的链接:
可能有更好的方法来做到这一点...

import requests
from bs4 import BeautifulSoup
headers = {
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8',
    'Accept-Language': 'en-US,en;q=0.5',
    'DNT': '1',
    'Upgrade-Insecure-Requests': '1',
    'Sec-Fetch-Dest': 'document',
    'Sec-Fetch-Mode': 'navigate',
    'Sec-Fetch-Site': 'none',
    'Sec-Fetch-User': '?1',
    'Connection': 'keep-alive',
}

response = requests.get('https://www.sigmaaldrich.com/US/en/product/aldrich/o7805', headers=headers)
sp = BeautifulSoup(response.text)
#find the data script
str_data = sp.find('script',{'id':'__NEXT_DATA__'}).text
#assign values so eval works correctly
false = False
true = True
null = None
#evaluate the string to python dict
d = eval(str_data)
#take what you need
cas = d['props']['pageProps']['data']['getProductDetail']['casNumber']
attrs = d['props']['pageProps']['data']['getProductDetail']['attributes']
smiles = [attr_d['values'] for attr_d in attrs if attr_d['key']=='smiles string']

print(cas,smiles)

输出:

112-90-3 [['[H]\\C(CCCCCCCC)=C(/[H])CCCCCCCCN']]

You can either use a webdriver to emulate browsing, or you can call the graphql api like so:



import requests

headers = {
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0',
    'Accept': '*/*',
    'Accept-Language': 'en-US,en;q=0.5',
    'x-gql-country': 'US',
    'x-gql-access-token': '7422fb01-fe49-11ec-b208-a93cbb385750',
    'x-gql-guid': 'GA1.2.1984313165.1657235201',
    'x-gql-language': 'en',
    'x-gql-operation-name': 'CategoryProductSearch',
    'Origin': 'https://www.sigmaaldrich.com',
    'Sec-Fetch-Dest': 'empty',
    'Sec-Fetch-Mode': 'cors',
    'Sec-Fetch-Site': 'same-origin',
    'Referer': 'https://www.sigmaaldrich.com/US/en/products/materials-science/biomedical-materials/polymerization-tools?country=GB&language=en&cmsRoute=products&cmsRoute=materials-science&cmsRoute=biomedical-materials&cmsRoute=polymerization-tools&page=1%22%27',
    'Connection': 'keep-alive',
}

json_data = {
    'operationName': 'CategoryProductSearch',
    'variables': {
        'searchTerm': None,
        'page': 1,
        'perPage': 20,
        'sort': 'relevance',
        'selectedFacets': [
            {
                'key': 'facet_web_product_area',
                'options': [
                    'S281',
                ],
            },
        ],
        'facetSet': [
            'facet_product_category',
            'facet_web_polymer_arch_functionality',
            'facet_web_polymer_arch_shape',
            'facet_fwght',
            'facet_web_greener_alternative_principles',
            'facet_web_markush-class',
            'facet_web_markush-group',
            'facet_melting_point',
            'facet_physical_form',
            'facet_web_react_suitability_reagent_type',
            'facet_brand',
        ],
    },
    'query': 'query CategoryProductSearch($searchTerm: String, $page: Int!, $perPage: Int!, $sort: Sort, $selectedFacets: [FacetInput!], $facetSet: [String]) {\n  getProductSearchResults(input: {searchTerm: $searchTerm, pagination: {page: $page, perPage: $perPage}, sort: $sort, group: product, facets: $selectedFacets, facetSet: $facetSet}) {\n    ...CategoryProductSearchFields\n    __typename\n  }\n}\n\nfragment CategoryProductSearchFields on ProductSearchResults {\n  metadata {\n    itemCount\n    page\n    perPage\n    numPages\n    __typename\n  }\n  items {\n    ... on Product {\n      ...CategorySubstanceProductFields\n      __typename\n    }\n    __typename\n  }\n  facets {\n    key\n    numToDisplay\n    isHidden\n    isCollapsed\n    multiSelect\n    prefix\n    options {\n      value\n      count\n      __typename\n    }\n    __typename\n  }\n  __typename\n}\n\nfragment CategorySubstanceProductFields on Product {\n  name\n  productNumber\n  productKey\n  isMarketplace\n  marketplaceOfferId\n  marketplaceSellerId\n  attributes {\n    key\n    label\n    values\n    __typename\n  }\n  brand {\n    key\n    erpKey\n    name\n    color\n    __typename\n  }\n  images {\n    altText\n    smallUrl\n    mediumUrl\n    largeUrl\n    __typename\n  }\n  description\n  paMessage\n  __typename\n}\n',
}

response = requests.post('https://www.sigmaaldrich.com/api', headers=headers, json=json_data)
data = response.json()

You may not need all of the header keys, some may not longer be valid after a period of time. But this will give you a data object with what you need.

Once you have the links to compound:
There may be a better way to do this...

import requests
from bs4 import BeautifulSoup
headers = {
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8',
    'Accept-Language': 'en-US,en;q=0.5',
    'DNT': '1',
    'Upgrade-Insecure-Requests': '1',
    'Sec-Fetch-Dest': 'document',
    'Sec-Fetch-Mode': 'navigate',
    'Sec-Fetch-Site': 'none',
    'Sec-Fetch-User': '?1',
    'Connection': 'keep-alive',
}

response = requests.get('https://www.sigmaaldrich.com/US/en/product/aldrich/o7805', headers=headers)
sp = BeautifulSoup(response.text)
#find the data script
str_data = sp.find('script',{'id':'__NEXT_DATA__'}).text
#assign values so eval works correctly
false = False
true = True
null = None
#evaluate the string to python dict
d = eval(str_data)
#take what you need
cas = d['props']['pageProps']['data']['getProductDetail']['casNumber']
attrs = d['props']['pageProps']['data']['getProductDetail']['attributes']
smiles = [attr_d['values'] for attr_d in attrs if attr_d['key']=='smiles string']

print(cas,smiles)

output:

112-90-3 [['[H]\\C(CCCCCCCC)=C(/[H])CCCCCCCCN']]

我可以从网站下载我需要的信息

爱本泡沫多脆弱 2025-02-20 17:31:09

似乎可以通过在我的答案中使用相同的逻辑来解决此处的问题 - 关于路线匹配的匹配 - 限制 - cartitems-app”>问题。它并未明确称为问题或其他需要解决/固定的,我以为您想您使用过代码,并且在其他地方遇到了一个问题),因此在此处为特定的Axios问题和解决方案添加答案。

看起来像导航到“/cart”将导致 productid QTY是未定义/无效的值,useffect挂钩无条件地派遣操作以添加项目&amp;数量。 productidaxios.get(`/products/$ {productid}`)中未定义。

如果有有效的产品ID和要添加的数量,则只能派遣addtocart操作。

const CartScreen = () => {
  const { search } = useLocation();
  const { productid } = useParams();
  const qty = search ? Number(search.split('=')[1]) : 1;
  const dispatch = useDispatch();
  const cart = useSelector((state) => state.cart);
  const { cartItems } = cart;

  useEffect(() => {
    if (productid && qty > 0) {
      dispatch(addToCart(productid, qty)); // <-- only dispatch if valid
    }
  }, [dispatch, productid, qty]);

  return ( 
    <Row>
      <Col md={8}>
        {!cartItems.length
          ? (
            <Message variant="info">
              <Link to="/">
                Go Back To Home Page
              </Link>
            </Message>
          ) : (
            <ListGroup>
              {cartItems.map((x) => (
                <ListGroup.Item key={x.product}>
                  {x.name} , {x.qty}
                </ListGroup.Item>
              ))}
            </ListGroup>
          )
        }
      </Col>
      <Col md={4}></Col>
    </Row>
  );
};

It seems the issue here might be resolved by using the same logic in my answer here to your other question regarding route matching. It wasn't explicitly called out as an issue or something the needed to be addressed/fixed (in other words, I thought you'd used the code and had an issue elsewhere), so adding an answer here for the specific axios issue and resolution.

It looks like navigating to "/cart" will result in both productid and qty being undefined/invalid values, and the useEffect hook is unconditionally dispatching the action to add the item & quantity. productid is undefined at axios.get(`/products/${productid}`) in the action creator.

You should only dispatch the addToCart action if there is a valid product id and a quantity to add.

const CartScreen = () => {
  const { search } = useLocation();
  const { productid } = useParams();
  const qty = search ? Number(search.split('=')[1]) : 1;
  const dispatch = useDispatch();
  const cart = useSelector((state) => state.cart);
  const { cartItems } = cart;

  useEffect(() => {
    if (productid && qty > 0) {
      dispatch(addToCart(productid, qty)); // <-- only dispatch if valid
    }
  }, [dispatch, productid, qty]);

  return ( 
    <Row>
      <Col md={8}>
        {!cartItems.length
          ? (
            <Message variant="info">
              <Link to="/">
                Go Back To Home Page
              </Link>
            </Message>
          ) : (
            <ListGroup>
              {cartItems.map((x) => (
                <ListGroup.Item key={x.product}>
                  {x.name} , {x.qty}
                </ListGroup.Item>
              ))}
            </ListGroup>
          )
        }
      </Col>
      <Col md={4}></Col>
    </Row>
  );
};

使用React-Router-Dom V6的Cartitems路由误差

爱本泡沫多脆弱 2025-02-20 12:08:41

您没有用上限写最后一端。不应该结束吗?

you did not write the last end in caps. Shouldn't it be END ?

为什么使用机器人框架的循环错误结束错误

爱本泡沫多脆弱 2025-02-20 10:56:48

您可以将步骤流到以下

  • 1.更改str(word)以列出str(字母)
  • 2。使用循环检查并更改列表中的str(字母)一一乘
  • 3.MERGE列表oft str(字母)到str(word)

代码 :

word = list(word)

for position in range(len(word)):
    letter = word[position]
    if letter == 'i':
        word[position] = '1'

''.join(word)

you can flow the step below

  • 1.Change str(word) to list off str(letter)
  • 2.Use loop check and change str(letter) in list one by one
  • 3.Merge list off str(letter) to str(word)

Code :

word = list(word)

for position in range(len(word)):
    letter = word[position]
    if letter == 'i':
        word[position] = '1'

''.join(word)

Python:循环和编辑字符串字符

爱本泡沫多脆弱 2025-02-20 09:43:23
  1. 如果您不了解简单的英语写的内容,则应该花一些时间来学习这种语言,即 https:https:https:https: //www.duolingo.com/ 是一个不错的选择

  2. 如果您不了终极线程组文档和支持材料:

  3. 如果您需要某人为您完成工作,这不是一个正确的地方,请考虑自由职业者市场 fiverr UPWORK

  4. 等效的终极线程组配置将是:

    “在此处输入图像描述”

  1. If you don't understand what's written in plain English you should invest some time into learning this language, i.e. https://www.duolingo.com/ is a good option

  2. If you don't understand how to implement what's written in English in Ultimate Thread Group you should invest some time to get familiarized with the Ultimate Thread Group documentation and supporting materials:

  3. If you need someone to do you job for you this is not a right place, consider freelancer marketplaces like fiverr or upwork

  4. The equivalent Ultimate Thread Group configuration would be something like:

    enter image description here

使用Jmeter中的Ultimate线程组重新创建负载跑步者方案

爱本泡沫多脆弱 2025-02-19 12:08:31

#EACH_WITH_OBJECT方法在这里可能很有用。在这种情况下,我们将传递h,该哈希在array中为每个元素更新。然后由#EACH_WITH_OBJECT方法返回哈希。

注意:|| =如果左侧侧为nilfalse,则将右侧分配给左侧。

array.each_with_object({}) { |x, h| (h[x[:ID]] ||= {}).update(x) }

收益率:

{"aaa"=>{"ID"=>"aaa", "step3"=>70, "step1"=>160, "step2"=>80}, 
 "bbb"=>{"ID"=>"bbb", "step1"=>80}}

然后,我们只需要使用#values即可获取我们想要的数据。

array
  .each_with_object({}) { |x, h| (h[x[:ID]] ||= {}).update(x) }
  .values

收益率:

[{"ID"=>"aaa", "step3"=>70, "step1"=>160, "step2"=>80}, 
 {"ID"=>"bbb", "step1"=>80}]

但是您希望缺少用0填充的密钥。为此,我们必须知道所有密钥是什么,然后我们可以再次使用#each_with_object

grouped = array
           .each_with_object({}) { |x, h| (h[x[:ID]] ||= {}).update(x) }
           .values

all_keys = grouped.map(&:keys).flatten.uniq

grouped.map! { |h| all_keys.each_with_object(h) { |k, _h| _h[k] ||= 0 } }

现在分组是:

[{"ID"=>"aaa", "step2"=>80, "step1"=>160, "step3"=>70}, 
 {"ID"=>"bbb", "step1"=>80, "step2"=>0, "step3"=>0}]

The #each_with_object method may be useful here. In this case we'll pass along a hash h that gets updated for each element in array. That hash is then returned by the #each_with_object method.

Note: ||= assigns the right hand side to the left hand side if the left hand side is nil or false.

array.each_with_object({}) { |x, h| (h[x[:ID]] ||= {}).update(x) }

Yields:

{"aaa"=>{"ID"=>"aaa", "step3"=>70, "step1"=>160, "step2"=>80}, 
 "bbb"=>{"ID"=>"bbb", "step1"=>80}}

Then we need only use #values to get the data we want.

array
  .each_with_object({}) { |x, h| (h[x[:ID]] ||= {}).update(x) }
  .values

Yields:

[{"ID"=>"aaa", "step3"=>70, "step1"=>160, "step2"=>80}, 
 {"ID"=>"bbb", "step1"=>80}]

But you want missing keys filled in with 0. For this we have to know what all of the keys are, and then we can use #each_with_object again.

grouped = array
           .each_with_object({}) { |x, h| (h[x[:ID]] ||= {}).update(x) }
           .values

all_keys = grouped.map(&:keys).flatten.uniq

grouped.map! { |h| all_keys.each_with_object(h) { |k, _h| _h[k] ||= 0 } }

Now grouped is:

[{"ID"=>"aaa", "step2"=>80, "step1"=>160, "step3"=>70}, 
 {"ID"=>"bbb", "step1"=>80, "step2"=>0, "step3"=>0}]

如何在一系列哈希中与不同的密钥/值对合并?红宝石

爱本泡沫多脆弱 2025-02-19 07:38:13

对我来说,似乎我只需要在&lt; script&gt;标记中指定lang属性为“ ts”

<script>
...
</script>

<script lang="ts">
...
</script>

For me, it seems I just had to specify the lang attribute in the <script> tag as "ts".

<script>
...
</script>

To

<script lang="ts">
...
</script>

Svelte/Tystecript错误:“意外令牌”在类型声明期间

爱本泡沫多脆弱 2025-02-18 20:50:11

因此,这是我阅读以下问题的方式:

开销位是不计入被缓存的实际数据的位。&nbsp;它们是跟踪缓存的维护状态的位,并帮助缓存命中,写回和驱逐策略。&nbsp;以某种方式查看它,如果一个字节被缓存(8位)在缓存中有多少个非数据位,以帮助管理它(或至少对于所有实际数据位在那里)。

这是数学上的,所以我希望我没有犯错,但是即使我也许您可以通过推理看待自己的方式。

让我们获取一些其他信息:

写下策略意味着缓存需要为每个数据块存储“脏”信息:肮脏是1位:是的,肮脏的-or-否,清洁。

对于2向套件的关联缓存,“完美” LRU算法也是1位(是:第一个块-or-否:第二块),但是每个索引位置的1位成本(即每行) - 不是每个块是每个索引两个块。

我们不知道是否有一个有效的位,这也是每个数据块,但是我在课程中看到的大多数缓存都有有效的位,因此我们可能会假设他们拥有它。

最后,有标签位的标签位:但是,在考虑索引位和块偏移位后,地址空间位剩下许多位。

因此,开销的公式可能是:

位于位的开销=索引位置 *(1 x lru bit + block开销位),

其中块上的头顶位= 2 [方式]

我们还知道标签位=地址空间位 - 索引位 - 块位

,因此我们有:

  • 4352 [bits in bits in Bits] =索引位置 *(1 + 2 *(2 + tag lits))

    - 和 -

  • tag bits =地址空间位 - 索引位 - 块偏移位

    - 和 -

  • 索引位置= 2 索引位

    - 和 -

  • 我们还知道,标签,索引和块偏移位的数量必须是一个整数(无位分数)。

因此,我们可以通过替换来开始减少这两个公式:

4352 =索引位置 *(1 + 2 *(2 +地址空间位 - 索引位 - 索引位 - 块位 - 块位)

也通过:

4352 = 2 index lit /sup> *(1 + 2 *(2 + 16-索引位 - 块位)

求解块位我们有:

- ((4352/2 index bits -1)/2-18 +索引位)=块位,

我不知道如何直接数学地解决这个问题,鉴于变量必须是整数必须是整数,因此,只需直接求解/搜索不同的值:

如果索引位是7公式,块位是分数的,因此,

索引位为9,则块位是分数,因此不起作用。

如果 ,除:

如果索引位为8,则通过此公式,块位为2,因此:

16 =标签位 + 8 + 2,表示标记位为6,索引位为8,而块偏移为2。

由于块偏移为 2 然后,块大小为2 2

So, here's how I read this question:

Overhead bits are the bits that don't count toward the actual data that is being cached.  They are bits that track maintenance state of the cache, and help the cache implement hits, write back, and eviction policy.  To some way of looking at it, if one byte is being cached (8 bits) how many non-data bits are in the cache to help manage that (or at least for all the actual data bits how many non-data/overhead bits are there).

This is mathematical, so I hope I haven't made an error, but even if I have maybe you can see your way through the reasoning.

Let's derive some additional information:

A write-back policy means the cache needs to store "dirty" information for each data block: dirty is 1-bit: yes, dirty -or- no, clean.

For 2-way set associative cache, a "perfect" LRU algorithm is also 1 bit (yes: first block -or- no: second block) but this 1 bit costs per index position (i.e. per line) — not per block as there are two blocks per index.

What we don't know is if there is a valid bit, which would also be per data block, but most caches I see in coursework have the valid bits, so we might assume they have it.

And lastly, there's the tag bits where tag bits are: however many bits are leftover in the address space bits after accounting for index bits and block offset bits.

So, a formula for overhead might be:

overhead in bits = index positions * (1 x LRU bit + block overhead bits)

where block overhead bits = 2 [ways] * (1 x Dirty bit + 1 x Valid bit + tag bits)

We also know that tag bits = address space bits - index bits - block bits

So, we have:

  • 4352 [overhead in bits] = index positions * (1 + 2 * (2 + tag bits))

    -and-

  • tag bits = address space bits - index bits - block offset bits

    -and-

  • index positions = 2index bits

    -and-

  • We also know that the number of tag, index, and block offset bits has to be an integer (no fractions of bits).

So, we can begin to reduce those two formulas by substituting:

4352 = index positions * (1 + 2 * (2 + address space bits - index bits - block bits)

by reduction also then:

4352 = 2index bits * (1 + 2 * (2 + 16 - index bits - block bits)

Solving for block bits we have:

-((4352/2index bits - 1)/2 - 18 + index bits) = block bits

I don't know how to solve this directly mathematically, given the constraint that the variables must be integers, so, instead of solving directly, simply try/search different values:

If index bits is 7 then by this formula, block bits is fractional, so that doesn't work.

If index bits is 9 then by this formula, block bits is fractional, so that doesn't work.

No other values between 0 and 16 result in an integer number of bits, except:

If index bits is 8 then by this formula, block bits is 2, so:

16 = tag bits + 8 + 2, meaning tag bits is 6, index bits is 8, and block offset is 2.

Since block offset is 2 then block size is 22.

如何从开销中计算高速缓存大小?

爱本泡沫多脆弱 2025-02-18 16:51:33

文本 textspan中的参数可以省略。因此,对于您想要的东西,您只需使用children参数,然后让第一个孩子成为一个字符。

RichText(
  text: TextSpan(
    children: [
      TextSpan(
        text: 'L',
        style: TextStyle(
          fontWeight: FontWeight.bold,
        ),
      ),
      const TextSpan(text: 'ike this?')
    ],
  ),
),

The text parameter in a TextSpan can be omitted. So for what you want, you can just use the children parameter and have the first child be a single character.

RichText(
  text: TextSpan(
    children: [
      TextSpan(
        text: 'L',
        style: TextStyle(
          fontWeight: FontWeight.bold,
        ),
      ),
      const TextSpan(text: 'ike this?')
    ],
  ),
),

是否可以在单词中写出特定字母,以成为扑朔迷离的自定义字体?

爱本泡沫多脆弱 2025-02-18 06:22:57

pdfmake仍然尚未开发垂直的功能。 strong>

但是,如果您的页面内容的高度(徽标,文本和表格)不会改变,我建议使用这样的保证金属性:

 ___________________
|                   |
| [Office Copy]     |
| [Text]     [Logo] |
| [     table     ] | // has margin bottom to lower line
|                   |
| [your line here]  | // has margin bottom to lower other copy
|                   |
| [Other Copy]      |
| [Text]     [Logo] |
| [     table     ] |
|___________________|

使用 canvas elem ,并添加底部余量,并添加底部余量

// in table elem for example    
{table: {body: [YOUR CONTENT], margin: [0, 0, 0, 20]}}

Pdfmake still hasn't developed a vertical-align feature yet.

However if your page content's height (the logo, text and table elems) is not going to change, I would suggest using the margin attribute like so :

 ___________________
|                   |
| [Office Copy]     |
| [Text]     [Logo] |
| [     table     ] | // has margin bottom to lower line
|                   |
| [your line here]  | // has margin bottom to lower other copy
|                   |
| [Other Copy]      |
| [Text]     [Logo] |
| [     table     ] |
|___________________|

Draw a line using the canvas elem, and add bottom margin like :

// in table elem for example    
{table: {body: [YOUR CONTENT], margin: [0, 0, 0, 20]}}

Hope it was clear, cheers

如何在两侧的内容中水平分成一半的页面?

爱本泡沫多脆弱 2025-02-18 01:37:27

如果我正确理解您的问题,我认为您不需要案例声明。

SELECT age, genre, count(rating) total_rating
from User u
inner join Data d on u.userId = d.userId 
inner join Item i on i.itemId = d.itemId
WHERE age >= 40
Group by age, genre;

我也尝试使用案例语句,但这有点丑陋。

SELECT age, 
       genre, 
       sum (CASE WHEN age>=40 
            then 1 
            ELSE 0 
            end)  as 'UNDER40'
       
from User u
inner join Data d on u.userId = d.userId 
inner join Item i on i.itemId = d.itemId
where age >=40
Group by age, genre

db fiddle

If I understand you question correctly, I don't think you need a CASE statement.

SELECT age, genre, count(rating) total_rating
from User u
inner join Data d on u.userId = d.userId 
inner join Item i on i.itemId = d.itemId
WHERE age >= 40
Group by age, genre;

I did also try to use a case statement, but it's a bit more ugly.

SELECT age, 
       genre, 
       sum (CASE WHEN age>=40 
            then 1 
            ELSE 0 
            end)  as 'UNDER40'
       
from User u
inner join Data d on u.userId = d.userId 
inner join Item i on i.itemId = d.itemId
where age >=40
Group by age, genre

db fiddle

在类型之间,哪种电影似乎更受年龄段的评价?

爱本泡沫多脆弱 2025-02-17 13:49:29

您要做的就是使用torch.arange()初始化一个具有所有可能索引的多维数组。之后,使用布尔面膜从每个张量中不想要的索引索引。

import torch

a = torch.Tensor([0, 1, 2, 1, 2, 0])
n = 3
b = [torch.arange(n) for i in range(len(a))]
c = [b[i]!=a[i] for i in range(len(b))]
# use the boolean array as a mask to apply on b
d = [[b[i][c[i]] for i in range(len(b))]]

print(d) # this can be converted to a list of numbers or torch tensor

这将打印输出 - [[张量([1,2]),张量([0,2]),张量([0,1]),张量([0,2]),张量([0) ,1]),张量([1,2])]],您可以轻松地转换为int/numpy/torch阵列/张量。

这也可以扩展到多个维度。

All you have to do is initialize a multi-dimension array with all possible indices using torch.arange(). After that, purge indices that you don't want from each tensor using a boolean mask.

import torch

a = torch.Tensor([0, 1, 2, 1, 2, 0])
n = 3
b = [torch.arange(n) for i in range(len(a))]
c = [b[i]!=a[i] for i in range(len(b))]
# use the boolean array as a mask to apply on b
d = [[b[i][c[i]] for i in range(len(b))]]

print(d) # this can be converted to a list of numbers or torch tensor

This prints the output - [[tensor([1, 2]), tensor([0, 2]), tensor([0, 1]), tensor([0, 2]), tensor([0, 1]), tensor([1, 2])]] which you can convert to int/numpy/torch array/tensor easily.

This can be extended to multiple dimensions as well.

创建一个序列的pytorch张量,该序列不包括指定值

爱本泡沫多脆弱 2025-02-17 12:19:49

您不应该尝试直接指定Incluber和Library目录,而是将root Directory(有时称为安装前缀)作为查找呼叫的提示。

您当前执行-dboost_includedir =/opt/opt/boost/lib/code>,但是/opt/opt/boost/lib实际上不包含任何标头文件,而是图书馆目录。虽然可以同时指定库并明确指定目录,但是这样做很易于且容易出错,因此不建议使用。

相反,您应该为库提供 root目录。安装库时,您最终将获得类似的目录结构:

/opt
  + boost
     + include
       + <all header files in here>
     + lib
       + <all library (.a and .so) files in here>

根目录是包含Incluble和Library Directories的目录,因此在这种情况下,它将是/opt/opt/boost

在Cmake版本3.12及更高版本中,find_package考虑 &lt; packageName&gt; _ root cmake variable &lt; packageName&gt; _root root 系统环境环境变量作为搜索shints。此外, boost toin> boost fin boost_rootboostroot cmake变量是搜索提示,因为几乎永远。

因此,您的命令行确实应该像这样:

cmake -DBOOST_ROOT=/opt/boost -DCMAKE_BUILD_TYPE=Debug .. -G "Unix Makefiles"

如果仍然不起作用,这很可能意味着您正在处理非标准目录布局。咨询 findboost的文档为了弄清楚如何在这种情况下传递其他提示,但实际上,我强烈建议您改用目录布局。

You should not try and specify the include and library directories directly, instead, give the root directory (sometimes called installation prefix) as a hint to the find call.

You currently do -DBOOST_INCLUDEDIR=/opt/boost/lib/, but /opt/boost/lib does not actually contain any header files, so it's not a valid include directory, but rather the library directory. While it is possible to specify both library and include directories explicitly, doing so is fiddly and error-prone and therefore not recommended.

Instead you should provide the root directory for the library. When installing the library you will eventually end up with a directory structure like this:

/opt
  + boost
     + include
       + <all header files in here>
     + lib
       + <all library (.a and .so) files in here>

The root directory is the directory that contains both the include and library directories, so in this case it would be /opt/boost.

In CMake versions 3.12 and higher, find_package considers the <PackageName>_ROOT CMake variable and the <PackageName>_ROOT system environment variable as search hints. Additionally, the Boost find script that ships with CMake supports the BOOST_ROOT and BOOSTROOT CMake variables as search hints since pretty much forever.

So your command line really should look like this:

cmake -DBOOST_ROOT=/opt/boost -DCMAKE_BUILD_TYPE=Debug .. -G "Unix Makefiles"

If that still doesn't work, it most probably means that you're dealing with a non-standard directory layout. Consult the documentation for the FindBoost script to figure out how to pass additional hints for such a situation, but really, I would strongly recommend to switch the directory layout instead.

Cmake找不到从Centos 7中安装的Boost

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