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Laravel orm多对多关系如何获得中间表的附加字段的内容？

table: users id questions id user_questions user_id question_id desc // 附加字段 unique(user_id, question_id)...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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mysql - Solr not returning all documents after importing with the Data Handler

I have a Solr 8.7.0 installation and I'm using the Data Handler importer plugin via a MySQLi connection. I have four entities ... item_id = c.id AND bt.id = ${tune.this_tune_id};">...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

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在信息录入页面之后追加一个最终确认页面要怎么实现？

在信息录入页面上输入相关信息点击确定按钮，弹出一个把之前输入的数据都显示出来的页面，供用户最终确认，确认通过再点击最终确认画面上的确定按钮数据传入数据库，点击取消则回到之前输入数据的页面，请问这个怎么实现？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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238 views

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reactjs - IonInput losing autofocus

I'm trying to implement an input with the autofocus attribute, it is working when I'm using it alone, but when I add an ... with <input type="button"> and I would like to use it....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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467 views

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请教virtualbox虚拟机桥接网络问题

本人在ubuntu系统中装了virtualbox，然后在virtualbox中装了一个系统也是ubuntu的虚拟机，网络连接方式选择了桥接，但是进入虚拟机之后无法连接上网络。我现在想要达到的效果就是能够使用主机通过ip访问到虚拟机，有大神有办法吗，请指教...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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213 views

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setInterval的问题

html结构 <ul> <ul id="x">li*20</ul> <ul>li*20</ul> </ul> 中间的2个ul内容完全相同,外部ul默认显示10个li,overflow:hidden. 效果就是每X秒向上滚动1次 ... :https://segmentfault.com/q/10... 但是我想寻求兼容IE8+,通过原生JS解决的办法.谢谢!...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Maven概念中的artifact该如何翻译才好？

Maven概念中的artifact该如何翻译才好？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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792 views

1 answer

java - Display a nested list with Primefaces dataTable

I have a problem to display a string as a header of an row and a list of strings, which are the propertys of the header. ... value="#{value}" /> </p:columns> </p:dataTable>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.2k views

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vue -router 跳转不刷新怎么解决（不刷新 window.onload中渲染画布的函数就不执行）

切换标签不显示但如果刷新页面就能显示出来切换的时候元素也都出来了 proSkill.vue <template> <div class="wrapper"> <span class="title">前端技 ... overflow: hidden; } ol{ color: aliceblue; font-size: .9rem; } </style>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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141 views

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javascript - Passing id to jquery function

I have a button and a hidden div. Button: <input type="button" id="myButton" name="answer" value="OPTIONS" style=" margin ... ="answer_list" > WELCOME</div> '; ?> //fin zona custom...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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339 views

1 answer

python - Image editing software with Tkinter and openCV, and how do make a button that reaches a function and displaying it

So as the title says, I'm working on a very basic image editor project using Tkinter and openCV with the ... and after that the function displays the edited value in panelDST...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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453 views

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image - how can I get properties of random points in Google Earth Engine?

I want to have random points across Peru and their properties (the band values of IMAGE) for statistical analysis in ... , and IMAGE bands as their properties? Thanks in advance!...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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554 views

1 answer

有没有大神知道国产的源代码静态扫描软件，主要是Java，C++？

找一款好用的国产的源代码静态扫描软件，需要购买要可以使用在Java和C++上，类似Parasoft一样的，但必须是国产的...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

1 answer

有没有适配移动页面的pdf转html工具？

客户那边给了几个保险条款的pdf，让我们在页面中显示，可是看了下网上的工具，可以将pdf转成html，但是在移动端显示效果很差，有没有什么好的解决方法吗？不想人力转pdf...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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127 views

1 answer

c# - Check for is Grounded

watched a lot of tutorials, but they are all "closed" in itself and are about platformers, and I just can't translate it ... .Impulse); tl.EndLine(); isGrounded = true; } } }...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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304 views

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vue父子组件通信

错误描述 Property or method "is not defined on the instance but referenced during render 父组件 < ... at D:WorkSpace6itoolssrccomponentsinputPageinputPage.vue) 为什么placeholder加冒号出错？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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412 views

1 answer

Webpack的Loader为什么是从右往左写？

比如说下面的Loader写法： style-loader!css-loader!sass-loader 我们一般都是习惯从左往右，为什么Loader的写法是从右往左呢？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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326 views

1 answer

jquery - How to get text file using .each method,

I have this html code: I want to $.get a .txt file with the same name as the div id and show in the respective divs But ... resourceContent = data; $('.parent').html(data)}) }) };...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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443 views

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网站的站内搜索怎么实现？

动态网站：后台用thinkphp写的 1、在网站内实现站内搜索，用什么技术？ 2、一般的站内搜索搜索的范围是特定的类型还是全站内所有的内容？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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152 views

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使用framework7.js的项目还能用jquery吗

有一个framework7和nodejs配合开发的项目，现有个用jquery开发的h5页面放到项目里jquery写的效果都无法使用，js引用文件和jq.appframework.js插件引用都试过了没有效果，怎么破，大神们...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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356 views

1 answer

关于webpack高版本向低版本切换如何切换？

关于webpack高版本向低版本切换如何切换？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

1 answer

android 顶部导航栏和底部导航栏结合的demo

新手，急需一个android 顶部导航栏和底部导航栏结合的demo，点击底部tabbar切换界面。顶部有返回按钮到第二层界面可以返回。...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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617 views

1 answer

如何获取优酷视频播放器的视频源地址?

比方说这个视频，播放器使用的是优酷的视频，如何获取优酷的原网页地址？ http://www.yaojiwu.com/v/8987......

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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298 views

1 answer

在Scrapy的Downloader Middleware中使用Selenium下载页面时，如何使用异步？

在下载中间件中，Request请求似乎是以同步的方式传入process_request方法的，而我在这里使用selenium下载页面并返回Response对象，就不会使用Scrapy的下载器。最后，全程只有一个浏览器实例在运行，每次只能处理一个请求，请问应该如何处理以提高爬取效率？非常感谢。...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

1 answer

关于this的指向

var a = 20; var obj = { a: 10, c: this.a + 20, fn: function () { return this.a; } } console.log(obj.c); //40 console.log(obj.fn());//10 第二个可以理解，第一个为什么是全局呢？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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161 views

1 answer

无法链接mongodb，附上错误log

MongoDB shell version v3.4.2 connecting to: mongodb://127.0.0.1:27017 2017-03-01T12:06:59.013+0800 W NETWORK [ ... shell/mongo.js:237:13 @(connect):1:6 exception: connect failed...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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221 views

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检测登陆情况

想问一下一般网站都会检测用户的登陆情况，如果用户浏览的页面没有登陆就会跳转到登陆页面是怎么做到的？我是每个页面都去判断登陆了没，怎样才能做到只判断一次呢？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

1 answer

postgresql - Need help to identify the actual date time format

I have been struggling since few days to identify correct format for sample input date: 2020-01-30 14:39:25.022000 +00:00 ... :39:25.022000 +00:00:00? Any help will be appreciated....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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