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I have two tables A and B where the relationship is one to many (A -> many B). Table "A" contains columns id, ... item (B) which has is_off = false; Any help will be appreciated....

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

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466 views

1 answer

大佬们，script引入react-antd后，怎么把组件设置为中文啊？

好吧，终于搞清楚了首先引入转中文的js <script src="https://cdn.jsdelivr.net/npm/[email protected]/locale/zh-cn.js" ... TableList/> </antd.ConfigProvider> </div>, document.getElementById("container") )...

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

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223 views

1 answer

How to find column index on specific row with value in excel

Good morning, I have sheet1 with a column A containing specific codes on each line. In another sheet2 I have a table ... "x" mark without having to manually select sheet2!G7:BD7....

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

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338 views

1 answer

关于Input防抖处理问题 react

antd Input里面加了onChange事件，它就会监听用户输入的每一个字符导致不断setState，后面加上防抖，把value属性去掉，问题是已经可以解决，但是如果Input在弹窗里面输入内容，然后把弹窗关掉， ... 过dom去清除输入框的内容，暂时没找到更好的解决方法 document.getElementById('xxx').value='';...

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

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404 views

1 answer

这两个命令cd&ls和直接ls，为什么显示有区别啊？

萌新刚学linux.. cd /dev/fd;ls -Al ls /dev/fd -Al...

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

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417 views

1 answer

&& 和 || 执行顺序问题

优先级查看 && 执行顺序高于||，并且两者都是从左到右执行， 1 || 2 && console.log('result') 但是执行这段代码时，却没有打印result，这是为什么。...

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

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100 views

1 answer

为何无法用正则表达式提取html?

show.html 包含下面的内容： <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <style type='text/css'> ... .replace(reg,""); alert(onlyHtml); 上面可是可以提供出正确的结果的哈？！...

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

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860 views

1 answer

initialization discards 'const' qualifier 应该怎么处理？

图中变量path并没有被改变，只是被赋值到copy，怎么就丢失const修饰符了呢...

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

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319 views

1 answer

node.js - How to prevent float and negative input using Javascript?

I'm using readlineSync.questionInt and I need to prompt a message if the user types float or negative number. I used a limit, but it ... are you going with?', { limit: 0 - 9 });...

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

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244 views

1 answer

javascript - NextJS only renders homepage post build

I am making a website on [email protected], In pre-build scenario everything works fine but after running next build and ... _next/ 404.html index.html sports.html about.html Images/...

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

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692 views

1 answer

各位帮忙看一下这个跨域的问题如何解决，这是前端调用后端登陆接口时的错

同源策略禁止读取位于 https:///login 的远程资源（原因：CORS 头 'Access-Control-Allow-Headers' 中的令牌 'multipart/form-data' 无效）这是火狐浏览器报的错 has been blocked ... 的错但其他浏览器，如360 猎豹等就可正常解析实现跨域想问下这是怎么回事？？？...

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

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447 views

1 answer

八进制数字报错，可以写成这样，但是不让他自动转八进制吗？

只要800编译器就自动报错，其他的应该自动转成八进制了，这种写法是不行的是吗？...

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

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689 views

1 answer

iis - Set content-security-policy so that other sites could embed a specific pdf file in an iframe

On our IIS website, there is a PDF file that we need to allow other sites to show in an iframe. Currently the content ... "Content-Security-Policy", so that didn't work. Any ideas?...

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

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757 views

1 answer

email - using python to search folders in outlook mail

I am trying to use Python code to search the mail folders in Outlook for a particular email address. Here's a ... the search be made to run over all folders within outlook/gmail...

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

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420 views

1 answer

swift - iOS App pre-main time optimisation (app launch time)

I want to optimize the startup time of my application, but I ran into a problem that I can't solve through ... it will be possible to optimize this much. Using static libraries?...

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

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701 views

1 answer

微信小程序支付，查询订单接口如果返回trade_state不为 SUCCESS时，到底包含哪几个字段？

可能我理解能力不好，我总感觉文档没有写清楚文档说：如trade_state不为 SUCCESS，则只返回out_trade_no（必传）和attach（选传）这意思是，如果trade_state不为 SUCCESS，则返回的是以下哪个组合： A： ... A B还是C？如果是A，那相当于只告诉支付失败，不告诉失败的具体情况和原因 ...

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

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755 views

1 answer

nagiosxi - Issues With some Services on Nagios XI

I use Nagios Core to check the status from some services on client servers (on our client environment). I use NRDP ... the services are OK Nagios XI - Some services are pending...

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

0 votes

662 views

1 answer

Windows Docker 搭建nginx+php 访问框架应用极慢。如何解决磁盘IO问题？

最近在使用Docker For Windows 搞开发环境只是访问index.php是正常速度，但是访问框架应用时速度会变得极慢下面贴出我的yml文件以及php的Dockerfile docker-compose.yml version: ... 设置工作目录 WORKDIR /wwwroot 仅仅在路由输出一句话要用4s 加了cached好像不管用...

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

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779 views

1 answer

python - Rounding off to 2 decimal places for wtforms floatfield

I'm looking for a way to limit the floatfield in Flask to 2 decimal places. These are my codes: from wtforms import ... price = FloatField('Price ($)', [validators.DataRequired()])...

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

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518 views

1 answer

Create a table from one line CSV data on SAS

I try to import data from a csv with only one line data formatted like this : ... @@; run; Thank you for your help....

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

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827 views

1 answer

java代码提交到gitlab时能否校验代码规范再提交？

想在代码提交到git时能先检测代码规范，通过后才能提交git。有没有开源的插件或者软件能实现这种功能的？...

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

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597 views

1 answer

python - Pandas group by rersample aggregation with sum by date and index

I have a complicated problem with pandas.I would like to calculatea cumlative sum depending on the timestamp start_date concerning that we ... 7:10 4600.0 2015-04-18 8:00 6900.0...

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

0 votes

574 views

1 answer

how to remove Null:[] in Json in Python

I've been stuck in streaming insert .Json data into BigQuery but Null:[] in .json data causes error like this ... ("Encountered errors while inserting rows: {}".format(errors))...

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

0 votes

790 views

1 answer

SpringMVC与Servlet的比较

说是使用Servlet时需要为【用户模块】和【订单模块】分别创建分别创建名为【UserServlet】和【OrderServlet】的Servlet，而使用SpringMVC则可通过【DispatcherController】统一转发请求我的疑问是：使 ... 两个Servlet了，但不是还得创建两个Controller么？没看出来这里的优势在哪里，望赐教...

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

0 votes

779 views

1 answer

关于socketserver线程之间的通信

这程序主要是用socketserver监听2个端口，一个9999,一个10000 设计是不管哪个端口的连接，都放到类属性conn_pool中保存起来程序会将9999端口的连接，收到的数据，发送给10000端口的连接 ... 进程，server2无法启动 server1.serve_forever() # 主线程等待p线程的结束才退出程序 p.join()...

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

0 votes

978 views

1 answer

The remote name could not be resolved: '*****.sharepoint.com' in O365 Online Sharepoint in Powershell

I am uploading files from a specific drive in the host computer to a Sharepoint Site, for this I have used Microsoft ... I could prevent the script from crashing again? Thank you!...

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

0 votes

1.3k views

1 answer

es6 generator执行顺序

教程例子如下： function* dataConsumer() { console.log('Started'); console.log(`1. ${yield}`); console.log(`2. ${yield}`); return 'result'; } ... ，所以呈现为undefined 教程没详细解释整个流程，所以不清楚我思路错在哪里 ...

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

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844 views

1 answer

css如何设置block子元素平均分布，并指定个数

<div class="container"> <div class="block"></div> <div class="block"></div> <div class="block"></div> <div class="block"></div> <div ... 数就会出现两遍分布宽度不均等的问题例如width:33%，请问有没有完美的实现的方法...

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

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