所有问题

When I try to run the code in debug mode everything works fine, but when I try to run it in release mode I get the error "file_name != nullptr"(the error comes from fopen). I know what the error means, but I don't know why I get the error and how to fix it

Error Message:

所以这是一个有趣的问题。我的一些客户报告了发布数据的问题，没有进行任何更改，但所有报告问题的 10 个客户都使用最新版本的 firefox（版本 64）。

此外，当您检查

但文本框实际上显示 2018 年 12 月 17 日（仅限火狐）

所以我得到了一个额外的 - 任何想法为什么？

一个以导入其他 Sass 文件为唯一目的的 Sass 文件应该如何命名？

是否有任何适用于此的规则或一般“行业标准”？

假设我们有以下文件结构：

并且file.sass下global/仅包含

应该怎么file.sass命名？

是bootstrap.sass还是bootstrap-loader.sass？或者是其他东西？

我找不到任何相关的帖子或文档来解决这个问题，除了这个 Stack Overflow 线程： Sass @Import 规则和命名有点相似，但它不包括我的问题。

如果可能的话，请用论据/例子来支持你的回答。

我的老师通过在访问中测试它并创建一个查询数据库的表单来测试这个结构。它以错误的形式返回，我不介意它是否无法修复，但我需要知道它有什么问题。谢谢

我需要查询不到 10 秒的时间。

我有这张桌子：

谢谢

我正在使用 FFMPEG 录制一个窗口，如下图所示。在所有情况下，记录窗口的右侧都会被裁剪。我给出的命令是

非常感谢任何有关如何解决此问题的建议。

以下是一些附加信息：

• 运行 Windows 10
• 使用 ffmpeg-20181215-011c911-win64-static，但我在使用其他版本的 FFMPEG 时遇到同样的问题
• 桌面分辨率为 3200x1800（dpi 缩放问题？）

这是上面示例中记录区域的样子

更新1：

记录整个桌面工作正常，但是，当使用 x 和 y 偏移记录区域时，捕获的区域是正确的，但指示的区域是错误的。我在下图中说明了这一点，它显示了录制期间桌面的屏幕截图。背景图像是一个网格，任务栏已被隐藏。

要捕获的区域大小指定为 1280x720，但指示的区域为 1600x900。此外，x 偏移量指定为 400 像素，但指示的区域从 500 像素开始。

记录的区域是正确的！下图是vlc回放时录制的截图，注意可以看到“错位”区域指示符

更新 2：

我注意到从桌面捕获时光标（鼠标）未正确放置，请参见下面的记录。录制过程中一切看起来都很好，但在播放时光标放错了位置。

为上述记录发出的命令是：

Windows 10 / ffmpeg-20181215-011c911-win64-static

I'm using Python requests 2.19.1 . But I'm facing an intermittent issue where I get no response at all when I post to a specific url.

I'm trying to check if the LDAP is giving me the expected output for invalid credentials. Here's the format:

that I'm posting

Almost everytime, it works fine. But sometimes, it doesn't give any response for that. Even network issues gives us some response. Right? Why am I not getting any response for the above call.

Is there any existing bug in requests?

Somebody please point me in correct direction.

如何控制docker buildWindows 上的命令使用多少个逻辑处理器？

我有这个dockerfile：

当我构建图像时，我看到以下输出：

请注意，我的计算机有 4 个逻辑处理器，当我使用--cpus 4选项运行容器时，我得到了预期的结果：

让我困惑的是为什么docker build不支持--cpus选项，因为它在创建图像层时运行容器。

码头工人信息：

有一个无序的n整数数组。我想找到 O(n) 中两个元素之间的最短距离。

谢谢！

注意：由于时间复杂性，基数排序不适合。

in my PagesController::display() i have this code :

That's almost the same as the standard pages controller, I added the last two lines.

My home.ctp template contains:

When I access the site, this outputs:

Which is confusing because debug kit shows that this variable was set:

Why is the test variable not available in the home.ctp template?

My table has 4 columns:

This is my database.

I'm trying to write a function which query the database to return a specific record and 2 next records with highest ID.

What I've done so far is:

mac and level are parameters that decide which records I want to get from the query.

For instance, take a look at the sample data provided. I want to get all records that have ab:cd:17 in BSSID column and -68 in RSSI column (records 2, 6, 518), and 2 next records with the highest ID (records 3, 4, 7, 8, 519, 520).

The problem is, this function returns result like this:

Whereas the result I'm looking for should be like this:

I have a container that uses a volume in its entrypoint. for example

I moved this to compose but it only works if my compose points to a Dockerfile in the build section if I try to write the same line in the command section is not acting as I expect and throws file not found error.

I also tried to use docker-compose run <specific service> bash /some/volume/bash_script.sh which gave me the same error.

The question is - Why dont I have this volume at the time that the docker-compose 'command' is executed? Is there anyway to make this work/ override the CMD in my dockerfile?

EDIT: I'll show specifically how I do this in my files:

docker-compose:

volumes: code:

BaseDockerfile:

Dockerfile:

This works.

But if I try to add to docker-compose.yml this line:

Then this file doesnt exist at the command time. I was expecting this to behave the same as the CMD command

I would like to set the transparency / opacity of the vertices in a graph to alpha = 0.5, except for some chosen ones.

I can alter the transparency with

But this will change the transparency / color for all the vertices. How can I change the alpha value for single vertices?

我正在使用 angular 6 从事电子商务工作，但遇到以下问题。

我正在使用拦截器为请求设置自定义标头。此自定义标头是存储在 LocalStorage 中的哈希，由 CartService 提供。

我还有一个 AuthService ，它带有一个 observable ，它会发出用户是否登录。

在 CartService 中，它使用依赖注入接收 AuthService 并订阅该 observable 以查看用户是否登录，并在用户登录或退出时从后端重新加载购物车。

问题是：当我在拦截器中注入 CartService 时，会出现死循环，因为 CartService 的构造函数再次运行，因此购物车被重新加载，并发出请求，因此拦截器再次运行。但是， CartService 不应该是一个单例，它的构造函数应该只运行一次吗？

注意： CartService 和 CartHttpService 都带有 @Injectable({providedIn:'root'}) 注释

代码 ：

购物车服务：

CartHash拦截器：

购物车服务Http

I have a dataframe with data for each hourly period for a year, and I would like to create a new row with a zero in all the rows that are between 9:00 and 17:00 and in that same row add the data from another row if it is not in this time range

I believe that I want something like;

This is not yet working, the first reason is that at the moment it is missing the full date. Is there some way I can get around that? The first line sort of works if I use;

Is there a way I can get around this.

For reference the first 5 data points are;

您好，我想知道如何打开一个在运行时Release模式下与正在执行的文件位于同一目录中的文件dll。更具体地说，我正在部署.NET Core应用程序，docker并且我已经在复制publish文件夹。在这个文件夹中，我还将复制我的file.

所以运行时的文件夹将如下所示：

我想从代码中获取file。到达它的路径是什么？我需要System.Reflection吗？

Dockerfile

I want to invoke a slot of MyWidget

But because in my case boost::asio use, with threads I don't want to have to do anything with Qt, I want to invoke this slot from a thread different from the main thread but a random thread I don't control. (On of the threads I let run boost::asio of course)

How can I do this? QCoreApplication::postEvent seems to be a nice choice, but the docs don't point out a nice way, on how to create the necessary QEvent. QMetaObject::invokeMethod with Qt::QueuedConnection seems nice too, but isn't documented as thread safe.

So how can I safely invoke a qt slot from a non qt managed thread?

(Although the title of Boost asio with Qt suggests this could be a duplicate, the question seems completely different to me, this questions is not necessarily connected to boost::asio)

我有等级 3 的张量和等级 2 的另一个张量，我想使用 tf.tensordot 但它给了我这个错误..??

我正在使用 tensorflow 0.12.0 并且正在导入 math_ops

请问有人可以帮忙吗？

def self_attention（输入，attention_size）：

I have an Azure function that queries a CosmosDB for the documents it contains in a collection:

This query brings back everything, where I'm just looking for a specific item to be returned. How can I refactor this to just pull back certain elements? I've tried things like using:

Here is the json structure of the sql api configured cosmosdb:

Instead of doc but this does not return anything. I'm also trying to use the @azure/cosmos npm module but it seems a bit overkill and does not seem to use the input defined in the function directly. Any ideas?

如您所见，k 最初是 1，我在控制台中打印 k++，我的第一个输出是 1 而不是 2！这背后的原因是什么？

我正在尝试使用 package.json 从命令行运行我的量角器测试。

我的 package.json 如下所示 -

当我执行以下命令时 -

npm run start从 Project 目录中，Selenium Standalone 服务器已启动，但最后一个命令未执行。这意味着，浏览器没有打开。

要执行测试/打开浏览器，我被迫npm run protractor在另一个命令窗口中单独执行。

我的 package.json 中是否有任何错误导致我无法同时执行所有三个命令？

请帮忙。

这是我的代码：

似乎有什么问题，但无法弄清楚。主函数中的while循环循环并且不中断。即使条件是错误的，它也会消失...欢迎帮助，谢谢。

I am trying to obtain the value where the top 10% and bottom 10% of observations lie. When I plot the density, I want to identify the observations at the bottom 10% and top 10% - I then want to either assign a "-1" to all observations that are below the bottom 10% and a "+1" to all observations to the top 10% and everything else just a "0".

This code does what I want but only for observations less tan 0.5 and greater tan 0.5, I want to convert these into "percentages".

Data:

There is an EditText on the activity, I click on that EditText, and the input method pops up. Then

1. I press on the back button, the onBackPressed method defined in the activity is not called, but the input method is hidden now.
2. I press on the back button again, the onBackPressed method is called this time.

My question is, why is onBackPressed method not called for the first time? And how can I make it work?

Here is my code.

MainActivity.java

activity_main.xml

Hey guys i am new to MEAN stack and i am trying to make a post request using Postman but it throws the error username not defined.. Connection with mongodb is done successfully and and works fine but it prompts undefined identifier username for user.username I'm unable to debug the error. I tried throwing post request using browser also but didn't help.

Code: