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1.9k views

1 answer

ngxs - NullInjectorError: No provider for InjectionToken Window

I have been trying to debug this issue but I have had no success. I believe it's a lack of ... /_karma_webpack_/node_modules/@angular/core/__ivy_ngcc__/fesm2015/core.js:7825:1)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

1 answer

GUI怎么读取本地路径的数据写入到远程节点

在GUI中操作,已经通过add server添加了远程的数据节点,此时运行路径是读取远程服务器的路径,但是我想读取本地文件里的数据,然后写入到远程服务器上的数据节点里,应该怎么操作?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.2k views

1 answer

SAS ERROR: Subquery evaluated to more than one row - SQL query

I'm building a results table and need to do two subqueries to calculate some KPI's. When running the code without ... t1 WHERE t1.INFORCE_P=1 GROUP BY t1.TRAMO_CAP_FINAL; QUIT;...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.7k views

1 answer

signal processing - Is it possible to use Matlab Coder to get a C version of an inbuilt Matlab filter design function?

I'm specifically looking at something like Matlab's firpm function (I know there are C implementations of Remez available online in several sources)....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

1 answer

请问用vuecli4构建的项目是否需要安装css-loader呢？为什么无法导入外部的css文件呢？不生效

如图所示。不太懂css-loader具体是做什么的？有啥用啊？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.0k views

1 answer

c++ - Auto-Vectorization of Matrix Addition

I am trying simple matrix addition code to get auto vectorized. float A[100]; float A[100]; float C[100]; int n = ... I do to make it vectorized and what does this remarks mean ?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.7k views

1 answer

仿百度网盘小程序多级目录右滑返回上级目录有实现思路吗?

百度网盘小程序多级目录右滑返回上级目录效果好难做啊...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.2k views

1 answer

python - Assign List to Iterated Columns - OpenPYXL

I want to assign the below list to a range of cells using OpenPYXL. quarters = ['Q1', 'Q2', 'Q3', 'Q4'] I used ... is a snippet of what I'm trying to acheive: Thanks for your help!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.3k views

1 answer

如何从一段html代码中取出input里value的值？

我我想把水表口径后的那个input下的value值取出来，我该怎么实现呢？ let str_html = `<TABLE style="MARGIN: 0px auto" border=1 cellSpacing=0 ... text'))" value=15 alt=水表口径 name=Num1265448544></P></TD>`...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.1k views

1 answer

multithreading - Using pyaudio and Speech Recognition at the same time

I want to record the audio and get an audiofile while using Speech Recognition. For some reason my program always ... target=get_audio) thread2.start() time.sleep(5) status=False...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.0k views

1 answer

c - Continuously update watchpoint while traversing linked list gdb

Lets say I have the following simplified code to loop through a linked list. Each node has a data pointer and next ... somewhere without the latch and I want to find out where....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.3k views

1 answer

求教用echarts 怎么实现一个图表每个月都有一个峰值曲线图那种

横坐标是一月二月三月等，图形是每个月都有一个峰值曲线图，一月的就在一月那一块，二月在二月那一块，单独的...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.5k views

1 answer

git执行任何操作都特别慢，怎么解决？

不仅右键执行 git base here 特别慢，就连add pull commit push，反正只要执行命令就特别慢，不知道为什么，突然就慢了。搜索各种解决办法都不起效。什么关闭360（已经删除都不起作用），完全不知道咋回事，还望大佬能够帮助解决，非常感谢！~...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.7k views

1 answer

mariadb - Context of MySQL wildcards

I am trying to get a better understanding of the context in which MySQL interprets wildcards, especially the _ underscore wildcard, which ... +-----+ 1 row in set (0.00 sec)...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.9k views

1 answer

c# - ASP.NET MVC 4: Error received when trying to insert datetime field in Sql Server Database from input text box

I am working on a web application that will insert data into a row in a table when clicked. When I try to insert ... /script> <script type="text/javascript" src="http://ajax.cdnj...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

询问关于yii2命名空间及config配置引入问题

yii2自建目录命名空间不生效，我知道需要在这文件引用前使用Yii::setAlias命令设置别名或者在config/main.php的aliases里设置，目前我尝试过在aliases或者项目index.php使用Yii:: ... setAlias相关函数，如果我想使用bootstrap.php配置是否需要在index.php进行配置或者引入就可？...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.9k views

1 answer

oracle中并没有TB_IM_MESSAGEINFO表，可是sql查询TB_IM_MESSAGEINFO为什么可以查的出信息？

只有TB_IM_MESSAGEINFOA与TB_IM_MESSAGEINFOB，并且TB_IM_MESSAGEINFO还不是视图为什么执行sql查出的信息还是TB_IM_MESSAGEINFOA的信息...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.2k views

1 answer

服务端渲染react-redux 报错 Invalid hook call. Hooks can only be called

### 问题描述 server error Error: Invalid hook call. ? Hooks can only be called inside of the body of a function component. ? This could happen for ... 解决服务端使用Redux的同构渲染问题问题已解决：解决方法看这里...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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5.0k views

1 answer

javascript - CKEditor 5 and Symfony 4 Form integration

I have to integrate the new CKEditor 5 instead of the old CKEditor 4 in symfony, with CKEditor 4 the form was submitted ... (), ], UrlGeneratorInterface::ABSOLUTE_URL ); }, ], ])...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

问一个element-ui 分页组件的问题

我想页面进来的时候默认选中50条/页，而不是10条/页，该怎么操作呢？我试了一下改变page-size绑定的数组为：[50,10,100]首先顺序会错乱不好看，而且组件竟然默认还是显示10条，见了鬼了：...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.9k views

1 answer

reactjs - How to catch react errors like use className instead of class or key missing for a loop while linting without ejecting cra

How to catch react errors like use className instead of class or key missing for a loop while linting without ... and control these checking via pre-commit hooks like husky....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.3k views

1 answer

When a 64bit int is cast to 64bit float in C/C++ and doesn't have an exact match, will it always land on a non-fractional number?

When int64_t is cast to double and doesn't have an exact match, to my knowledge I get a sort of best-effort-nearest- ... like gcc's -Ofast are known to break any of this....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.7k views

1 answer

css样式总是在jquery ajax请求返回之后才会应用到页面，请问该怎么处理？

jquery 1.10.2 版本，想在 ajax 上传文件之前搞个 loading 效果，现在出了个奇怪的问题，通过以下代码： $('body').append('<div id="loadingBg"></div>'); $('#loadingBg'). ... 招，谢谢！我发现普通的 ajax 请求是没有问题的，我这个是一个上传文件的 ajax 请求 ...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.2k views

1 answer

circuit - How to select a multi-bit output from n possible outputs without Multiplexer (Logisim)

I have the assignment to create a simple storage (Logisim) with storage cells of 8 bit each that can be written to and ... how this could be done. Thank you very much in advance!...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

vue-element 如何实现切换分页表格滚动条置顶功能?

Rt. 大概界面就张这样自己封装了一个自定义指令代码如下 /** * @desc 仅支持 element 表格的回到顶部 * @param 'top'-回到顶部 'bottom'-回到底部默认 top */ Vue.directive('table- ... 对应的参数不现实...)** 理想效果: 只有点击分页的时候表格才会置顶,其他一概区域无效...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.9k views

1 answer

encryption - Assembly 8086 - Subtracting in x86

I'm working on a program to encrypt / decrypt data using the Vigenère Cipher. All is well except the decrypt part. The logic ... 26d or 1Ah = 8'. Could be really wrong about it....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.7k views

1 answer

reactjs - Value of type 'PromiseConstructor' is not callable. Did you mean to include 'new'? React TypeScript

.then not working in typescript. interface Props { type: string; user: object; setUserAuth: Promise<any>; } const handleSubmit = (e: ... ; 26 | } else { How can it be resolved...?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.8k views

1 answer

循环渲染的时间输入框，时间范围限制？

### 循环渲染出的时间框，开始时间和结束时间用的是同一个输入框，怎么判断时间范围 ### 相关代码 ### 后台接口返回的数据 ### 我期待的结果 ### 现在的结果...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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