Recent questions in Technique[技术]

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font awesome - Vertically aligning two FontAwesome icons

I have some simple code which includes two font icons from FontAwesome. They render like this in my browser: Note that although both ... class="fad fa-fw fa-calendar"></i> </p>...

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

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reactjs - Properly LogOut button React

can't get the logout button to work properly. I'm using React and Firebase. Here is a portion of the code from App.js, ... </section> ) } export default Hero; What I'm doing wrong?...

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

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python - Weird behavior of subprocess with Pyinstaller compiled on ubuntu and run on SuSe 12 SP4

I am noticing some weird behavior of subprocess compiled using pyinstaller on Ubuntu 16 which works fine on ubuntu 16 but fails ... on SO seems to be no match to this problem....

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

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372 views

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Flutter apk doesn't work in android device

I try to generate apk file for my flutter app, I used flutter build apk --release command after flutter clean ... different android version. Please help me to solve my problem....

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

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react的样式问题。

var React = require('react') module.exports = React.createClass({ handleClick:function () { console.log(this.props.id+1 + " id") console.log(this ... 后打开发现图片没有加载在审查元素那提示说无法载入此图像？...

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

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467 views

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hdfs 配制HA，只能访问到本地文件系统，为什么访问不到hdfs系统？

1.在bin/hdfs dfs 下执行命令访问到的是本地文件系统，正常来讲应该是hdfs文件系统 2.HA配置文件 <?xml version="1.0" encoding="UTF ... > <name>dfs.permissions</name> <value>false</value> </property> </configuration>...

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

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394 views

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python - Deleting messages that start with certain prefix [discord.py]

I want my bot to delete all messages that are not starting with the prefix .. I wrote this code so far in discord. ... ('.'): return else: await message.delete() Thanks in advance...

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

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hexo页面永久链接配置

我想要达成这样的效果，如果页面中没有配置permalink属性，则使用主配置文件里的链接格式，如果配置了该属性，则用该属性作为永久链接 hexo主配置文件_config.yml中有permalink这个配置项，默认值为:year ... 是2017/03/05/diary/hello.html.html 不知道该怎么配置才能达到这样的效果，请教各位大神谢谢...

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

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398 views

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redux的state范式化的一个疑问？

redux的state范式化的文档：http://cn.redux.js.org/docs/r... 其中有这么一段话需要注意的是，范式化的 state 意味更多的组件被 connect，每个组件负责查找自己的数据，这和小部分的组件 ... 子组件了吗？让尽可能多的组件成为智能组件吗？大家有没有使用normalize范式化state，实践是怎么样的？...

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

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How to install fenics in Ubuntu using PIP for a particular python environment?

I want to install fenics in Ubuntu 20. First I made a python environment using: sudo apt install python3-venv Then ... I want to install fenics in a python virtual environment....

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

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c# - .net using YouTube Content ID API Manual Claims

Using the Youtube data API, I created a playlist, uploaded a video, but after uploading it, I couldn't manage rights. ... examples of .net. Is there anyone who can help? Thank you...

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

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521 views

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python爬虫时，抓取网页遇到的问题？

我在爬虫抓取网页阶段输入代码后，没有结果，还报错，希望大神们能帮忙解答一下。代码和问题如下：...

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

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352 views

1 answer

webpack多页应用中的打包问题

在一个多页应用中使用webpack 假设有10个页面，每一个页面都要单独打包成一个js，一个css 这10个css中都引用了一个相同的css模块现在这个共同的css模块变化了，除了这10个页面都调用webpack重新打包一次，还 ... 因为在webpack的使用中，还是用的单入口，并不是有10个入口可以让webpack一并打包求大神解答！跪谢！！！...

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

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175 views

1 answer

问一个关于Backbone的问题

var App = { Collection : {}, Model : {}, View : {} }; App.Model.Item = Backbone.Model.extend({ //.... }) App.View.Item = Backbone. ... 取，疑问的地方是如图view和model都不在一个父对象里，应该说this指针是不一样的 ...

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

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jq如何判断含有某个子元素节点

假如我一个div;里面有三个节点；现在我要用jq来判断节点样式名为class的节点是否存在怎么判断...

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

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How to share the Particular SQLITE audio file to Gmail in android?

I am working audio recording app, in which the audio is recorded and stored inside the app and that path is stored in ... work. Can any one help me to share this audio file ?...

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

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232 views

1 answer

没有苹果Mac电脑怎么上传APP？

开发了一个APP，但没有苹果机，可以在Windows系统下直接上传的方法吗？...

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

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453 views

1 answer

项目用的grunt，在npm install的时候报这个错误请大神帮我看看

...

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

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107 views

1 answer

python modified printing function

I made 5 lists which represents tokens (lexical classes) - identifiers, constants, operators, keywords and separators. ... (all identifiers are printed first, then operators...)...

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

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771 views

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xslt - Conditionally displaying data from XML using XSLT1?

Here is a XML snippet: <div class="headingZoom"> <xsl:text>Congregation Meeting Schedule for </xsl:text> <xsl:value-of ... have both in teh relevant nodes, just one or the other....

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

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ios - LazyVGrid Items Overlap

I need some help with understanding why there is overlap in landscape with my Swift LazyVGrid. This is mentioned as an issue ... /3 } Thank you in advance! Any help is appreciated....

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

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255 views

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html - How to find the right node in Rselenium to press load more buttom on dynamic webpage

I want to click the [more recipes](in german: [mehr Rezepte]) Button via Rselenium on the following webpage: https:/ ... button clicked via Rselenium? Thank you a lot and BR David...

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

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1 answer

weex目前发现的几个问题

版本：weex：v1.0.3 weex-builder : v0.2.4 weex-previewer : v1.3.4 1.ios下面，绑定数据不会自动更新，如下： <text @click="onTest">{{test}}</text> data () ... ) value里面只要带%符号，在安卓下面就挂了，感觉只要有%符号安卓下面就有问题...

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

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276 views

1 answer

oop - I wrote a java program but it seems to be an infinite loop

import java.util.Scanner; public class FirstJava { public static void main(String args[]) { final int NUMBER_OF_QUESTIONS = 5 ... user gets it right. Can someone help me with this?...

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

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257 views

1 answer

PHP验证上传文件

$finfo = finfo_open( FILEINFO_MIME ); $mimetype = finfo_file( $finfo , $this->fileInfo['tmp_name'] ); if ( $mimetype == "audio/mpeg; charset=binary" ... 否安全，或者怎样进一步验证上传的文件是安全的音频文件？...

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

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311 views

1 answer

node.js - mongodb autodelete in 24 hours does not work

expire_at: { type: Date, default: Date.now, index: { expires: '24h' }, }, this expires only in 2 minutes it does not wait for 24 hours. Why this behaves like this ?...

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

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185 views

1 answer

json数据量大,前端能做什么

百度地图上的点，希望一次性标注到地图上，ajax请求的数据量很大，保存为txt文件都有30多m，前端在性能优化上能做什么？...

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

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406 views

1 answer

apache spark - Convert RDD to DataFrame using pyspark

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

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