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c# - Is there anything similar to WPF-DataTrigger in WinUI UWP project?

I want to change the style based on binding values, for this I used DataTriggers in WPF. Now I'm trying ... VisualStateManager only includes common states I can't apply that here....

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

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1.2k views

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webrtc gclient sync

操作系统是乌班图，下载的是webrtc，使用的是声网的镜像 $ gclient sync line 32: bootstrap-3.8.0.chromium.8_bin/python3/bin/ ... workspace -ensure-file /tmp/tmp_VMpuD.ensure' returned non-zero exit status 4...

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

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431 views

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windows 10 无法从外部访问 WSL2 docker MySQL

我的 docker container 数据如下 , 有开 3306 port $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ... 10 gui 工具测试得到 Connection failed - 102(connection_refused)...

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

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525 views

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vue项目中的public里的HTML引入js一直报错,但是路径又没问题

这是报的错这是vue.config.js的配置...

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

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262 views

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html - How to align the content shown in the image using JavaScript along with redirecting to another page

I am bit troubled in aligning the content as shown in the image. Along with that I need to redirect to page 1 ... clicking the icon separately. How can I solve it using javascript?...

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

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328 views

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python - law of exponents Sympy

I am using Sympy library python on jupyter notebook I want to do law of exponents and get the correct results instead I am getting ... I am getting x^3*x^2 which I don't want it...

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

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怎么通过计算属性让父组件传给子组件的值，再从子组件传回去时为响应式的。

三个页面，index,render,render下的组件点击能打印出来数据，但是功能没法实现，我看有说用计算属性来做，这种该怎么做（这个是组件计算属性实现的方法，我vuex那个方法实现也有问题）大致流程，侧边栏通过汉堡包关 ... //////////////////////////////// 设置过setter,getter后数据就一直不改了 ...

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

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tensorflow - Can I have opencv-python installed on a python virtual environment with tensorflow_macos?

I am on macos with apple M1 silicon chip (arm64) and I created a virtual environment with native python3.8 to be able ... awesome to have the same solution :D Thanks for your help!...

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

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276 views

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ios - What is the use of in label of utf16Offset(in: )

I can't understand the in label of utf16Offset(in:) statement what the use of this label. And can ... textString.range(of: hyperText)?.lowerBound.utf16Offset(in: textString)...

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

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1.6k views

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elementui tree使用懒加载功能后，不能使用过滤节点

懒加载，过滤节点，分开使用没有问题懒加载不用自带的lazy，:load="loadNode"，而是通过node-click事件去判断，手动懒加载，这种懒加载方式filter可以过滤到节点。而用自带的这两个，就触发不了了，不懂为啥，过滤节点总是说暂无数据。...

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

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327 views

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python - Safely evaluate simple string equation

I'm writing a program in which an equation is inputted as a string, then evaluated. So far, I've come up ... a mathematical expression from a string, as if inputting a number?...

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

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363 views

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一道算法题跪求解答

假设有一批数字 0~100000，有80个set，每个set都会从0～10000挑选出m_i个数字，m_0,m_1,...m_79不一定相同，现在需要从0~100000找1000个数，使得每个set都至少有100个数在这1000个数中，仅找到一种可行解就行了...

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

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1 answer

怎么将数据库表的数据转成这样的链接形式显示？

需要连接微信公众号，将内容转给公众号里，怎么将数据库表的数据转成这样的链接形式显示？...

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

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259 views

1 answer

python - How to swap two widgets' x position in tkinter?

I need to create a function that takes as a parameter two widgets and the frame they are placed. I want to swap their ... the right way of doing this? Is this the right approach?...

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

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235 views

1 answer

Haskell 中 maximum minimum 的一点迷惑

ghci> maximum "[1,2,3,4]" ']' ghci> minimum "[1,2,3]" ',' 为什么是这样的结果？...

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

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160 views

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android - How do I use document reference to add field (prevent overwriting) in my document in Firestore?

First of all, I hope anyone could help adjust my code line using document reference as below. As you can see from my firebase console ... (TAG, "onFailure: " + e.toString()); } });...

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

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echarts 南丁格尔图值为0的时候添加默认背景色

我想给0%的缺口那给个默认背景色，有人知道如何设置么？...

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

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162 views

1 answer

How do I make python read a CSV file that has been turned into an excel file?

I was trying to make a program that would read a CSV file that I downloaded from the WorldBank about every countries GDP over ... exist.' Ps- pls don't judge the name of the file...

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

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369 views

1 answer

有啥办法把EG1、 EG2、 EG3 这些字段，都合并到一个EG字段

一个表有ID、EG1、EG3、EG3共4个字段，想变成ID、EG2个字段，使得行数变成原来三倍，列数从4列变成2列，请问在DolphinDB有什么办法？...

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

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248 views

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jest如何可以不验证项目的.babelrc文件

项目逐渐庞大，目前需要引入jest，但jest会和项目原有的.babelrc配置冲突，所以我在寻找运行测试时忽略读取.babelrc的方法...

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

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281 views

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webrtc使用navigator.mediaDevices.getUserMedia获取的流是反的

使用环境安卓的webview加载h5网页，网页调用navigator.mediaDevices.getUserMedia获取到的流是反的上下颠倒通过设置video的 transform只能解决自己的显示，，解决不了推流给别人的流(上下颠倒的) 流程用笔 ... 这个场景会出现，，请问各位大佬有谁遇到过么，，我确定不是代码流程问题，就不贴代码了 ...

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

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266 views

1 answer

Cross Compile V8 using Buildroot toolchain

Is anyone able to offer advice on cross-compiling V8 using a Buildroot toolchain? I need to embed the V8 monolith ... builroot based project or in defining a "custom toolchain" ?...

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

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212 views

1 answer

java - QueryDSL filtering with a label table

I have a table which is queried for a grid view using labels as filters. Schema: project: id, col_a label: ... ().and(subExpression).getValue() : expression.and(subExpression); }...

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

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254 views

1 answer

如何去掉<figcaption>之前空白？

在写网页的时候发现浏览器会在figcaption和它前面的元素之间留出一段空白，源代码如下和页面显示效果如下所示请问如何把这段空白去掉？ <!doctype html> <html> <head> ... ="linux.png" /> <figcaption>Linux操作系统</figcaption> </figure> </body> </html>...

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

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347 views

1 answer

haskell - list to either of list

Say I have the following parser function: validateA :: MyMonad m => TypeA -> TypeB validateA a = (fmapLT Service $ getB $ bId ... A -> ExceptT Error B and [A] to ExceptT Error [B]...

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

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427 views

1 answer

WSL2安装ubuntu20.04后，如何设置DNS？

我的win10，按照官方教程用WSL2安装Ubuntu 20.04，但是发现连接http://mirrors.aliyun.com出现问题，经过一番排查发现需要修改/etc/resolv.conf文件的nameserver，修改成nameserver ... 没有这个dns的设置又不能正常连接http://mirrors.aliyun.com了，求助各位大神...

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

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133 views

1 answer

uni-app富文解析的问题

在uni-app上我用这个插件解析富文本，在web端，就说在浏览器上显示没有问题。但是用手机调试，或者云打包成app就显示不出来了。在手机调试的时候，看到控制台打印出这个问题。。求助大佬，这是哪里出来问题，有没有什么解决方法...

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

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402 views

1 answer

axios中post请求参数有问题

各位大佬好，我想请教下图一处的写法是支持的吧，但是请求不到参数是为啥啊？...

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

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