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天气好吗我好吗 2025-02-21 01:31:28

如果您想在PHP中获取页面的样式。
尝试一下

<!--Styles included -->
<style>
<?php include '/blue.css'?>
</style>

If your trying to fetch styles for a page in php.
Try this

<!--Styles included -->
<style>
<?php include '/blue.css'?>
</style>

使用WordPress子文件夹的自定义CSS?

天气好吗我好吗 2025-02-20 11:25:04

在找到其下的元素之前,您需要切换到&lt; iframe&gt; 。您可以使用 frame_to_be_available_and_switch_to_it 为此,

WebDriverWait(driver, timeout=10).until(EC.frame_to_be_available_and_switch_to_it((By.TAG_NAME,'iframe')))

您还可以使用 ID 或 name name by by

WebDriverWait(driver, timeout=10).until(EC.frame_to_be_available_and_switch_to_it('MLVALUEDFT_dielectric_total'))

,现在使用 > driver.find_element(...)找到元素。

要退出&lt; iframe&gt; 使用 driver.switch_to.default_content()

You need to switch to the <iframe> before locating elements under it. You can use frame_to_be_available_and_switch_to_it for that

WebDriverWait(driver, timeout=10).until(EC.frame_to_be_available_and_switch_to_it((By.TAG_NAME,'iframe')))

You can also use the id or name attributes without By

WebDriverWait(driver, timeout=10).until(EC.frame_to_be_available_and_switch_to_it('MLVALUEDFT_dielectric_total'))

And now use driver.find_element(...) to locate the element.

To switch back out of the <iframe> use driver.switch_to.default_content()

使用Python的Selenium库从网站访问此值

天气好吗我好吗 2025-02-20 02:50:31

您需要解析H264是相机正在发送H264输出:

gst-launch-1.0 -vvv v4l2src device=/dev/video2 ! video/x-h264,width=1920,height=1080,framerate=30/1 ! h264parse ! autovideosink

如果MJPEG流:

gst-launch-1.0 -e v4l2src device="/dev/video0" ! "image/jpeg,width=1920,height=1080" ! jpegdec ! videoconvert ! autovideosink

You need to parse the h264 is the camera is sending a H264 output:

gst-launch-1.0 -vvv v4l2src device=/dev/video2 ! video/x-h264,width=1920,height=1080,framerate=30/1 ! h264parse ! autovideosink

In case of a mjpeg stream:

gst-launch-1.0 -e v4l2src device="/dev/video0" ! "image/jpeg,width=1920,height=1080" ! jpegdec ! videoconvert ! autovideosink

GSTREAMER USB摄像机H264管道

天气好吗我好吗 2025-02-19 23:17:39

您提供的代码是这样的:

给定一些被禁止的字符串,例如[“ a”,“ b”,“ c”],如果我的字符串包含这些字符串,请替换所有“

“检查零件是多余的(我的意思是此部分 seq(...)。存在(...)),在字符串包含那些被禁止的字符串的情况下,它的复杂性增加了一倍。如果您想使用Scala功能和UDF进行操作,我建议您这样做:

str
  .replaceAll("[{,\\\\,\"\"]", "-") // this means if you found either of {, \\, ", replace it with -
  .replaceAll("\"", "") // and if you found ", replace it with empty string

您还可以链2 Regexp_replace 来自Spark API的调用,您可以在这2个中的任何一个之间进行选择。

The code you provided is some thing like this:

Given some banned strings such as ["a", "b", "c"], if my string contains either of these string, go replace all the "a"s and "b"s and "c"s

So actually the checking part is redundant (I mean this part Seq(...).exists(...)), it doubles your complexity in cases that your string contains those banned strings. If you want to do it using scala functions and UDFs, I suggest you do this:

str
  .replaceAll("[{,\\\\,\"\"]", "-") // this means if you found either of {, \\, ", replace it with -
  .replaceAll("\"", "") // and if you found ", replace it with empty string

You can also chain 2 regexp_replace calls which is from spark APIs, you can choose between either of these 2.

过程字符串逃脱的最有效方法-Scala

天气好吗我好吗 2025-02-19 14:32:54

在寻找几天的答案后,我找不到解决问题的解决方案。
只是发现这是一个PM2问题,以某种方式停止纱线来生成一些文件。事实证明,当我停止PM2进程时,它仍在背景上运行。

以下是您可以检查是否遇到相同问题的方法:

  1. pm2 stop -name pm2停止PM2
  2. 进程使用 PM2删除-name PM2删除所有(如果您没有其他进程运行)
  3. 运行 pm2 ls 确认没有,则没有其他运行
  4. 日志的 过程当前用户使用其他用户
  5. 运行 PM2 LS 登录。如果仍有进程正在运行,请停止它们。
  6. 纱构建 PM2开始

After searching for answers for days, I couldn't find the solution to my problem.
Only to find out that it's a pm2 issue somehow stopping yarn to generate some files. It turns out that when I stopped pm2 processes, it was still running on the background.

Here's how you can check if you have the same problem:

  1. Stop pm2 process with pm2 stop --name or pm2 stop all (if you have no other processes running)
  2. Delete the process using pm2 delete --name or pm2 delete all (if you have no other processes running)
  3. Run pm2 ls to confirm that there is no other process running
  4. Log your current user out and login using a different user
  5. Run pm2 ls. If there are still processes running, stop them.
  6. Redeploy with yarn build and pm2 start

在YARN构建后,从.nuxt/dist/client文件夹中丢失一个.js资源

天气好吗我好吗 2025-02-19 13:36:09

切勿使用 = 在使用日期/时间属性时 - 即使值(日期时间)与现有消息的值匹配,条件也将永远无法满足。 - 错误错误。

始终使用范围(&lt; &gt; ),或(如果您正在处理当前日期,并且假设没有任何较新日期的消息) ,将&gt; = 如 @0m3r建议。

Never use = when working with date/time properties - the condition will never be satisfied even if the value (both date and time) matches that of an existing message because of round-off errors.

Always use a range (< and >), or (if you are dealing with the current date and assume there won't be any messages with a newer date), use >= as @0m3r suggested.

当前日期的Outlook邮件限制

天气好吗我好吗 2025-02-19 02:45:43

该标准指定仅当任何定义程序的行为不明显影响的行为时,才可以执行优化变换。序列点规则的编写是为了允许以不跨序列点的方式重新排序动作,即使可以观察到这种重新排序的效果,也可以通过将不确定的行为归类为任何动作,任何使得能够影响效果的动作可以观察到允许的转换。

不幸的是,这种规则制作方法的结果是,即使在没有关系的情况下,也必须明确地强制采取行动的测序。例如,Java可以在不使用任何内存屏障的情况下缓存字符串的哈希代码;缺乏内存屏障可能会导致线程感知哈希代码没有缓存,即使在另一个线程实际缓存之后,也可以执行冗余的哈希值计算,但是偶尔的额外计算的成本通常会大大显着。低于在每个访问中添加内存障碍的成本。但是,在C中,试图读取缓存的哈希代码字段,而另一个线程正在修改它将产生不确定的行为,即使在平台上,读取尝试的唯一可能效果将是产生旧值(表明哈希代码是' t缓存)或写的最后一个值(这始终是正确的哈希代码)。

The Standard specifies that optimizing transforms may be performed if any only if they do not observably affect the behavior of any defined program. The sequence-point rules are written to allow reordering of actions in ways that don't cross sequence points, even if the effects of such reordering might be observable, by classifying as Undefined Behavior any actions that would make it possible for the effects of an allowable transformation to be observed.

An unfortunate consequence of this approach to rule making is that it makes it necessary for programs to explicitly force the sequencing of actions even in cases where it wouldn't matter. For example, Java can cache strings' hash codes without using any memory barriers; the lack of memory barriers may cause a thread to perceive that the hash code isn't cached, even after another thread has actually cached it, and thus perform a redundant hash value computation, but the cost of the occasional extra calculations will generally be significantly below the cost of adding a memory barrier on every access. In C, however, attempting to read the cached hash code field while another thread is modifying it would yield Undefine Behavior, even on platforms where the only possible effects of the read attempt would be to yield the old value (indicating the hash code wasn't cached) or the last value written (which would always be the correct hash code).

什么是序列点,它们与未定义的行为有何关系?

天气好吗我好吗 2025-02-18 19:34:20

这是因为范围,如果您提前声明变量并将编辑器放在那里,一切都很好

it was because of the scope, if you declare a variable in advance and put the editor there, everything is fine

quill do do do noce of text-change&#x27;

天气好吗我好吗 2025-02-18 16:07:43

您使用 age()的行为是因为 extract()仅提取天数,但它不会为您转换几个月和几年提取之前。

在SQL Server上,您可以使用datediff(),但是在gedre中,您必须通过提取日期来自己计算它,如 this 答案。

几乎没有时间单位在这里

The behavior that you've got with using age() is because extract() only extract the amount of days but it won't convert months and years into days for you before extraction.

On a SQL Server you could use DATEDIFF() but in Postgre you have to compute it yourself by substracting dates, as shown in this answer.

There's also few examples with all the time units here.

计算达到特定日期的天数-PostgreSQL

天气好吗我好吗 2025-02-18 12:38:59

如果添加 Ember-Auto-Import ,则应该能够从 d3-graphviz 中导入。 Ember-Auto-Import设置了WebPack,并允许事物从NPM“工作”,并且是所有Ember应用程序中的标准配置,因为Ember-CLI 3.16

此外,如果您启动了新应用程序,则可能需要更新 ember-cli 因此,您可以获得最新的蓝图。

npm install -g ember-cli@latest

If you add ember-auto-import, you should be able to import from d3-graphviz. ember-auto-import sets up webpack and allows things to "just work" from npm, and is standard in all ember apps since ember-cli 3.16

Also, if you're starting a new app, you may want to update ember-cli so you get the latest blueprint.

npm install -g ember-cli@latest

项目无法找到导入的D3-Graphviz模块

天气好吗我好吗 2025-02-18 09:49:11

为了补充其他答案 - 如果您不了解有关编译中发生的事情的某些内容,则可以使用诸如分解器之类的工具 - 例如在线 - https://sharplab.io/ 。在其他功能中,它提供了能够看到将分解为see ,在这里也不是非常有用的)和语法树(对于此 - 请参见),在这种特殊情况下,这很有用。我使用了下一个代码(因此可以在发行模式中进行编译,而无需优化常数):

public class C {
    public void M(int? i) {
        if (i !!= 5)
            Console.WriteLine("vvvvvv");
    }
}

如果您展开compilationunit-&gt;
classDeclaration-&gt; method -declaration-&gt;身体 - &gt;
ifstatement-&gt;条件 - &gt;左您会看到它实际上是 suppressnullableWarningExpression ,而操作数为 i

”

此处代码的一部分由选定的语法节点表示。因此,正如其他人所描述的那样,您可以看到编译器以 4 的方式解析您的代码,然后是无效操作员。

To complement other answers - in case you don't understand something about what is happening in terms of compilation you can use tools such decompilers - for example an online one - https://sharplab.io/. Among the others capabilities it provides ability to see the decompiled to IL(not very useful here), C# (basically desugared version of the code, for this one - see, also not very useful here) and also syntax tree (for this one - see), which can be useful in this particular case. I've used next code (so it can be compiled in release mode without optimizing constants out):

public class C {
    public void M(int? i) {
        if (i !!= 5)
            Console.WriteLine("vvvvvv");
    }
}

If you expand CompilationUnit ->
ClassDeclaration -> MethodDeclaration -> Body ->
IfStatement -> Condition -> Left you will see that it is actually SuppressNullableWarningExpression with operand being i:

enter image description here

enter image description here

With sharplab.io kindly highlighting the part of the code which is represented by selected syntax node. So as others described you can see that compiler parses your code as 4 followed by null-forgiving operator.

当我使用时,为什么代码会被编译!! = C#

天气好吗我好吗 2025-02-18 05:03:51

通过使用 vstack_mut> vstack_mut 而不是

. ,因为根据文档:

vstack 将块从其他块添加到此dataFrame的块

/code>起作用而不是扩展 从其他到基础内存位置的数据,因此可能导致重新分配。

可以在上面链接的文档中找到更多信息。

Fixed by using vstack_mut instead of extend

vstack_mut works instead of extend because as per the documentation:

vstack adds the chunks from other to the chunks of this DataFrame

Whereas extend appends the data from other to the underlying memory locations and thus may cause a reallocation.

More info can be found in the docs linked above.

删除最后一行并扩展数据框以使用已删除的行打印数据框

天气好吗我好吗 2025-02-18 02:12:41

它们似乎是解决此问题的公关
添加到global.css

.quill > .ql-toolbar:first-child {
  display: none !important;
}

,它将解决

They seem to be a PR to fix this issue but until then a workaround is to
add to the global.css

.quill > .ql-toolbar:first-child {
  display: none !important;
}

and it will fix

React Quill in NextJs具有重复选项卡

天气好吗我好吗 2025-02-17 15:50:02

是的。应该有可能。例如,我从Python的错误和例外文档中找到了这一点。

在此示例中,例外已放在列表中。 并且例外是一个一个

class B(Exception):
    pass

class C(B):
    pass

class D(C):
    pass

for cls in [B, C, D]:
    try:
        raise cls()
    except D:
        print("D")
    except C:
        print("C")
    except B:
        print("B")

该列表已在for循环中迭代,

class Userdoesnotexist(Exception):
    def __init__(self, message):            
        # Call the base class constructor with the parameters it needs
        super().__init__(message)

class Userexists(Exception):
    def __init__(self, message):            
        # Call the base class constructor with the parameters it needs
        super().__init__(message)

def lambda_handler(event, context):

    verif = boto3.resource('iam')
    client_iam = boto3.client('iam')
    user = verif.User('Tom')
    try:
        user.load()
        if verif.exceptions.NoSuchEntityException:
            raise Userdoesnotexist("user does not exist.")
        if ex.response['Error']['Code'] != 'NoSuchEntityException':
            raise Userexists("user exist.")

。 stackoverflow.com/questions/1319615/proper-way-to-declare-custom-exceptions-in-Modern-python"> thread 。

Yes. it should be possible. as an example i found this from the Errors and Exceptions documentation of python.

In this example the exceptions are put on a list. The list is iterated in the for loop and the exceptions are raised one by one..

class B(Exception):
    pass

class C(B):
    pass

class D(C):
    pass

for cls in [B, C, D]:
    try:
        raise cls()
    except D:
        print("D")
    except C:
        print("C")
    except B:
        print("B")

For your purpose maybe it would look something like:

class Userdoesnotexist(Exception):
    def __init__(self, message):            
        # Call the base class constructor with the parameters it needs
        super().__init__(message)

class Userexists(Exception):
    def __init__(self, message):            
        # Call the base class constructor with the parameters it needs
        super().__init__(message)

def lambda_handler(event, context):

    verif = boto3.resource('iam')
    client_iam = boto3.client('iam')
    user = verif.User('Tom')
    try:
        user.load()
        if verif.exceptions.NoSuchEntityException:
            raise Userdoesnotexist("user does not exist.")
        if ex.response['Error']['Code'] != 'NoSuchEntityException':
            raise Userexists("user exist.")

Probably it is not perfect but you could take a look to this thread.

如何根据if语句的条件提出特定的例外?

天气好吗我好吗 2025-02-17 03:57:45

如果您遵循此URL上的 aws管理consol e中指定的要求,则可以使用:

https://us-east-1.console.console.aws.amazon.com/textract/home?region=us-east-1 #/demo

上传,例如,您的PNG文档。文档必须少于11页,小于5 MB,以及以下格式之一:JPEG,PNG或PDF。

This works if you follow the requirements as specified in the AWS Management console at this URL:

https://us-east-1.console.aws.amazon.com/textract/home?region=us-east-1#/demo

Upload, for example a PNG of you document. Documents must be fewer than 11 pages, smaller than 5 MB, and one of the following formats: JPEG, PNG, or PDF.

AWS是否支持扫描驾驶许可证和护照?

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