Hot questions

0 votes

514 views

1 answer

Spark connection to slave on standalone cluster

So I have my master node on my Mac and I can check on the webserver my master url as spark://private_ip_address: ... not connect properly and show on the webserver the slave node....

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

0 votes

765 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)

0 votes

748 views

1 answer

echarts 制作多坐标系的问题

我想要在一个 echarts 图形中显示两个坐标系的图形，达到下面的效果我的源码如下，没有实现也没有报错，不知道什么问题 <!DOCTYPE html> <html> <head> <meta charset= ... 'row', xAxisIndex: 1, yAxisIndex: 2 } ] }); </script> </body> </html>...

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

0 votes

952 views

1 answer

前端游击队想要知道正常的开发流程，小公司就是一个人从0到1,连测试都没有，产品都是畸形的，好恐怖

前端游击队想要知道正常的开发流程，小公司就是一个人从0到1,连测试都没有，产品都是畸形的，好恐怖...

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

0 votes

1.1k views

1 answer

python - Django import Error(from extras.plugins import PluginConfig)

I'm new to Django and I try to develope a plugin for NextBox using this framework. To get familliar with it ... installing the package, .plugins is unkown as well as PluginConfig...

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

0 votes

1.2k views

1 answer

nuxt2.x 开发环境在IE11下报“对象不支持“entries”属性或方法“错，请问下大家怎么解决呢？

对象不支持“entries”属性或方法有些页面又可以正常打开。...

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

0 votes

328 views

1 answer

Access Denied with LDAP and C#

Using LDAP with DirectoryEntry or PrincipalContext in C# worked fine, I could read AD, change properties, yet when creating ... create groups/users... So what is going wrong here?...

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

0 votes

963 views

1 answer

c# - In mvc I have this dropdown list. How can I give a empty default value to my dropdown? this is the code i use

This is my code now, it displays all emails from my database but the begin value of my dropdown should be nothing. <div class= ... .Email" class="text-danger"></span> </div> </div>...

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

0 votes

804 views

1 answer

angular - Where to place *ngIf directive?

Is there any difference between <ng-container *ngIf="flag"> <child-component></child-component> </ng-container> or ... /child-component> And what is the best practice for that?...

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

0 votes

693 views

1 answer

正则表达式如何匹配两个相邻数字不一样？

想匹配链两个字符：MN M和N都是0-9之间的数字，但是M不等于N，这个正则表达式应该怎么写呢？...

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

0 votes

633 views

1 answer

How to create python 2.7 virtual environment using python 3.7

I have Python 3.7 && I would like to create a python 2.7 virtual environment to run some code that only works on ... I create this python 2.7 virtual environment? python3 -m venv ?...

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

0 votes

4.6k views

1 answer

python - How add keyboard shortcut where one is missing from standard button on PyQT5 QMessageBox?

Upon creating a message box with standard buttons in PyQT5, I find that only some of them have keyboard shortcuts. How ... .Yes ) M.setDefaultButton( QMessageBox.No ) M.exec()...

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

0 votes

834 views

1 answer

docker - Is there a way to provide a default project and token configuration for sonarqube from the first start?

I want to setup a Docker-based installation of SonarQube with a default project and token. This guide describes how to setup a ... I do not need to access the UI for setting them?...

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

0 votes

693 views

1 answer

android - How to receive calls/messages real-time when the application is closed

I am developing a VoIP application with SIP as the signaling protocol. I have implemented the messaging and calling ... . Could anybody please point me in the right direction?...

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

0 votes

662 views

1 answer

如何只获取分布式表的句柄而不用载入数据?

db=database("dfs://db1",RANGE,0 20 50 101) n=100000 id=rand(100,n) val=rand(100.0,n) t=table(id,val) pt=db.createPartitionedTable(t,`pt,`id ... 于新增数据之外,怎么能只获取pt句柄而不用载入数据,毕竟表内数据量巨大....

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

0 votes

1.2k views

1 answer

节点内存控制原理是怎样的?

如图所示,maxMemSize已经改成100G(服务器内存有200G),并且已经重启节点. tt这个表只有2.7G,第一次正常载入,再运行一次就出现bad_alloc(应该是内存oom吧),这样看100G内存的设置没有起作用?...

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

0 votes

655 views

1 answer

cron - Selinux blocking crontab file changes from PHP

I'm using PHP 7 on CentoOS 7 system. The following line exec('echo "'.$some_cron_content.'" | crontab -'); ... permissions should I set for the apache file to solve that problem?...

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

0 votes

1.0k views

1 answer

vue用列表渲染的组件，如何设置其中某一个的样式？

<template> <div class="list-wrapper"> <div class="list-block" v-for="item in 3" :key="item" > <div class="block" v-for="sub in 3" : ... ], }; }, 比如 position是我选择的那个元素，怎么给这个元素设置样式？...

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

0 votes

705 views

1 answer

python - json array to pandas dataframe and write it to csv

I have a json array like below and i wanted to convert into a pandas dataframe and write it into a csv finally. I have ... results/0101/a.csv', mode='a', index=False, header=True)...

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

0 votes

870 views

1 answer

useEffect依赖多个

const {id, name, visible} = this.props useEffect(() => { const getData = async ()=>{ const res = await fetch({id, name}); } getData( ... 请求三次接口，这个怎么解决？如果只依赖visible，lint会报错，提示缺少依赖项...

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

0 votes

631 views

1 answer

bioconductor - install packages in R

Before to ask your help I search on StackOverflow for a possible solution. Unfortunately, they do not work for ... , installing in different ways manually and not...please...

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

0 votes

708 views

1 answer

Hbuilderx编译成小程序后乱码

我用Hbuilderx新建了一个uni-app工程，然后点击运行-->运行到小程序模拟器-->微信开发者工具，会自动打开微信开发者工具，但是不会打开项目工程，手动打开后，里边的文件全都是显示【此文件是二进制文件或使用了不支持的文件 ... 】在Hbuilderx里打开也是一样的如果点击打开，就全部是乱码在文本编辑器里打开是正常不乱码的请问怎么解决？...

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

0 votes

715 views

1 answer

andorid 8.1系统webview升级后webview性能不升反降？

智能设备，用的是android 8.1系统，最近对webview搞性能优化，因此升级了android系统的webview，系统本身默认的webview版本是58，现在计划升级成85版本，但是在85版本的webview性能基准测试中发现， ... org/Speedometer2.0 有谁知道原因吗？或者说有哪位大佬知道哪个版本的webview比较适合升级吗？...

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

0 votes

384 views

1 answer

PHP可以实现将PPT转成缩略图吗？

比如PPT有10页，就转成10张缩略图，PHP能否做到，或者用第三方的相关的API能否实现（PHP语言），谢谢指导...

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

0 votes

1.5k views

1 answer

iframe - Embedding html page and removing divs

Good Morning, I am in need of assistance, I am not a programmer and I am venturing to create a website for my ... have any solution to solve this problem? Thank you in advance!...

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

0 votes

622 views

1 answer

javascript - Edit words in Zapier

Im trying to reverse words in Zapier. For example "word"-->"drow". I already looked for an app which I can connect ... words with Code by Zapier (Javascript/Python). Not sure why....

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

0 votes

644 views

1 answer

为何docker里su到mysql居然无效

我docker的启动容器脚本是这样： `docker run -itd --name my-new -v /mydir:/mydir -v /etc/localtime:/etc/localtime -v /filesys:/filesys --net=host -- ... 后，依然是原来的用户这是什么玄学问题？是不是docker里要特殊操作？...

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

0 votes

237 views

1 answer

javascript - Wht is wrong with my code? How to get my new value

I have a form and calculation formula. I need to get my result in inpute string. my table <table class="vel_sum_table ... $('#quantity_product_input').val(meterM2); } }} </script>...

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

Categories

Just Browsing Browsing

Most popular tags