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424 views

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matblazor - Controlling width of MatTable Column

How can I control the width of the columns in MatBlazor MatTable I have fiddled a bit around, and by disabling the css ... </MatDialogActions> </MatDialog> Any idea what I can do?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vagrant - preseed.cfg file for auto install ubuntu 20

I try to auto-install and create a packer vagrant VM box with Ubuntu 20. I use this preseed.cfg file for auto ... my old preseed file ran very well for old version of ubuntu....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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TP框架使用TCPDF这个生成PDF文件的类出现错误？？

TCPDF ERROR: Some data has already been output, can't send PDF file 想问下为什么会这样啊我在控制器 public function guaranteeAgreement(){ ..........// ... PDF file 控制器继承的父类也没有什么问题啊，请问还有什么可能的原因啊...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Firebase displayName is only shown after Re-login not at the first login

I have 2 methods. One that creates user called signUp and other that adds display name to user profile called updatesUser. During ... , onError.message)); } What am I doing Wrong?!...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

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求模糊搜索下拉组件相关

有没有比较好的模糊搜索下拉组件不是一般的那种不是这种需要这样的效果鼠标点一下可以出来这样的应该怎么去做新人请指导一下谢谢...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django rest framework social oauth2 causing unexpected error with Djongo for mongoDB conversion of django app

I am using Django rest framework social oauth2 for authentication in one Django app. For development purposes ... DatabaseError Thanks for your consideration. Really appreciate it....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to handle: Warning MSB3182: File name 'Resources....File.txt' exceeds 100 characters

I have a WPF project with a couple large strings in it. So I decided to clean it up a bit and move my strings ... , clean way to handle my large strings. Help will be appreciated....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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写页面遇到个布局问题，求大佬们帮解答，在线等，急！~

这是要做的div 中间六边形图我有周围小球的图片也有六边形和小球连在一起的图也有图片随便弄关键是要求：这五个小球是a标签有跳转链接的用的开发框架是bootstrap 我写的时候用了绝对定位,然后在1200px宽度以上是 ... 老板不想让我在1200px左右的宽度出现滚动条...所以...我很迷茫... 想问问有没有老哥能解决这个布局问题的...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

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assembly - Printing square triangular numbers not excpected value

So, I want to print a square triangular numbers, you can see at here. This is code I wrote : global main extern printf ... is wrong) So you can help me to fix this if possible ?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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560 views

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r - rlang double curly braces within lm() formula

Is it possible to use the rlang tidy evaluation operator {{ within an lm formula? I know that you can use the double curly braces to ... {xvar}} , data = df) } my_lm(mpg, cty, hwy)...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - instruct std::list.push_back() to make use of the heap allocated memory address

As far as I know std::list stores it's elements internally in a doubly linked list format which means heap memory is allocated. ... << &St_list.back() << std::endl; return 0; }...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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postman API调试接口，在哪能下载啊？

网上的下载地址都是坑人的，...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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451 views

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jquery 的 animate background-position-y 在IE上每次会从0开始

http://jsbin.com/yolexeqidu/1... jquery 的 animate background-position-y IE9以上每次会从0开始 IE8以下 Chrome和Firefox没有这个现象要 ... ).animate({ backgroundPositionY: '60px' }) }); }); </script>...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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479 views

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这种没有if的判断语句怎么理解

$data ['ToUserName'] == 'gh_3c884a361561' || $this->init_follow ( $data );...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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python - Multiprocessing: Assign values to N-dimensional array/matrix parallelly

I was trying to convert for-loop to multiprocessing.Pool().map function. Here, I have created an empty ... Multiprocessing? or how to do this task using multiprocessing?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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500 views

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关于双向绑定v-model的疑问

刚刚接触vue，对于其中v-model有几个疑问，比如在子组件中使用v-model，最终也是通过this.$emit('input', value) ，将数据返回给父组件那么对于双向绑定是否有限制啊？比如可以对父组件 ... /td> </tr> checkbox组件就是一般的checkbox按钮，对样式进行了统一控制，最终返回的就是true和false...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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css的vertical-algin:middle出现怪异现象的解释？

HTML代码： <div class="coder"> <img src="images/code2.png" style="vertical-align:middle;">x <span>打开微信，扫描二维码,<br>用手机观看视频</span> </div> css代 ... 涉及这么深，而百度的博客，我浏览了，有的是太抽象看不懂，有的是没讲解到这种细节...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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lumen使用laravel/passport的问题

lumen使用laravel/passport，按照官方文档调用oauth/token可以生成token，但是调用别的路由会报错，比如调用oauth/clients会报500错误并提示然后我找到了CreatesUserProviders这个文件但是不知道这个下面应该去返回什么是调用什么中间件吗...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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380 views

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mongodb连接localhost数据库问题

本地已经可以连接到数据库； import * as mongoose from 'mongoose'; /** * 连接 */ mongoose.connect(`mongodb://127.0.0.1:27017`); /** * 连接成功 ... 据库连接断开'); }); module.exports = mongoose; 通过上面的代码连接却提示：...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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344 views

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Weex Android 扩展Component 空白

Android 扩展Component v-for 空白,不使用v-for 可以显示 public class RichText extends WXComponent { public RichText(WXSDKInstance instance, WXDomObject ... return { list:[1,2,3] } } } </script>...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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526 views

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inline-block 会影响同一行元素的位置么

遇到过几次类似的问题，一直没找到合适的解答来提问一下，结构如下图下面是两种效果这是没有加float: left;的效果，明显看到按钮往下掉了一点；这个是加了float的效果，按钮位置正常。不太清楚这是因为什么原因导致的，希望能帮忙解答一下。还有就是如果是要实现这样的效果是用block还是inline-block。...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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241 views

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为什么传进去一个object，axios会在ajax请求中转化成form data？

config.js /** * Created by root on 2017/4/22. **/ import Qs from 'qs' export default { // 请求方法同上 method: 'post', ... api.showMsg('success',data.msg) } }).catch(function () { }); }...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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290 views

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node升级报错

想升级node,结果显示无法执行脚本？然后在想问一下，类似这种npm安装命令行报错怎么看错误的关键点？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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358 views

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RxJava 中有根据条件执行不同函数的操作符吗？

rxjava新手，搜索了下没有发现相关的操作符（只是我没有找到）我想在onNext 中对获取到的数据进行判断，根据活动到数据携带的type 刷新不同的界面，目前的做法是在onNext中switch + case 代码很难看，想请问下有这样的操作符吗？（我想了下好像可以主动抛出一个异常哎，但是这样做不好)...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

1 answer

php domdocument 使用一个url来读取文档应该怎么读

因为项目需要，我需要使用php对xml上的值进行修改使用的DOMdocument来做代码如下 $xmlpatch ='http://www.*****.com/vr/wtest/vtour/tour.xml'; $xml = ... 大神帮帮忙~不胜感激~能告诉我simplexml怎么修改属性，或者domdocument怎么用url来读都好 ...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

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Code re-usability (inheritance) in ReactJs

I want to design two reactjs classes. Most of the code contained in the two classes is the same. An example is ... of my knowledge reactjs does not support C++ kind inheritance....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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363 views

1 answer

小白请教各位大神：能不能在Weex中使用VUX库

本人刚开始接触weex不久，想把vux作为UI库来整合到weex里面使用，不知道是否可行？谢谢各位大神解答，提问得不对请各位多多包涵。...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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460 views

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通过jquery动态的设置video src的值无法播放视频？

<div id="video-box"> <video style="object-fit: fill;width: 200px;height: 50px;" controls> <source src=""> </video> </div> <a class="dj" ... 相应的视屏，但是通过jquery成功的给src赋值了，但是不知道为什么播放不了？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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