OStack Q&A-Knowledge Sharing Community

0 votes

229 views

1 answer

各位大虾好！小弟使用阿里云cnetos 7的虚拟服务器，目前在挂载上出了一点问题，请问这种mount system call failed，应该怎么办？如图。小弟在http://bbs.csdn.net/topics/39...里看到有人说" 修改/etc/sysconfig/nfs文件将版本3和4的注释放开，就可以了",请问版本3和版本4是哪部份呢？...

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

0 votes

220 views

1 answer

vuejs2.0怎么开发一个重用的提示弹框？

vuejs弹窗组件怎么开发呢？网上的都是webpack开发的，看不懂，类似这样的：标题，提示语可以控制，按钮上的事件可以控制，怎么写，有没有简单的demo让我参考一下？最好不用webpack，就使用最普通的组件开发，谢谢各位了希望大 ... 供一下思路，这个是用来全站通用的，算是个美化的confirm弹窗在线等，特别着急，项目延期了，公司要裁人呢 ...

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

0 votes

250 views

1 answer

java - Write generic method which takes enum and string as arguments

Please suggest. Suppose I have two enums as shown below. I'm performing tasks if enum values match my string. public enum Action { ... .out.println(sp); Some work to do here } } );...

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

0 votes

363 views

1 answer

如何在浏览器上启动本地的应用程序？

如题↑ 场景：在浏览器上打开一个page页面，然后点击page上的一个button，就可以启动一个本地的应用程序。业界比较流行的实现方式有哪些呢？...

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

0 votes

357 views

1 answer

Docker hub image fails but building its Dockerfile works. What is happening?

I have used Docker-compose a lot recently, but this time I found a container I really want to use but the ... achieve a container that updates via Watchtower ? Many thanks :)...

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

0 votes

399 views

1 answer

WebStorm 双击单词，匹配到所有的一样的，但是修改单词，匹配到的都修改了？

WebStorm 双击单词，匹配到所有的一样的，但是修改单词，匹配到的都修改了。能不能和其他编辑器一样，双击单词，相同的单词高亮，但是修改这个击中的单词的时候，只是这个修改，而不是查找替换的功能...

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

0 votes

337 views

1 answer

JS滚动的一个问题。求助。急！

先附上地址：http://rrd.me/b742N 我的这个是用Vue 写的，非常简单就是ul 里面如果准备没数据了，就添加一条数据让他继续滚动出现的问题：打开的时候，然后你去浏览其他网页，过20多秒回来看这个就会发现直接滚动到上 ... 看是不会有问题的滚动都是正常的求大神在我原有的代码修改跪求了我都不知道什么原因感激不尽！...

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

0 votes

380 views

1 answer

hibernate中每次修改数据都开关session还是只开不关session好?

就是我用ssh搭了一个web服务器，客户端请求修改数据的话我知道是每次都开关一个session的。但是在web服务器内部修改数据库中的数据的话应该还是这样么？还是开一个session并不关闭它，每次都修改数据都用这个session？这两种方式哪种好一点？...

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

0 votes

390 views

1 answer

Node 复制文件怎么同名不覆盖原有文件？

例如: 文件夹里面有 a 文件，往该文件夹里面写入 a 文件，生成 a 1 文件，再往该文件夹里面写入 a 文件，生成的是 a 2 文件请问有什么比较好的方式去实现呢？...

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

0 votes

510 views

1 answer

如何解决微信上微网页图标库未加载导致的乱码？

框架是vue,图标库用的是fontello,首次登录时加载网页必定是乱码退出重新点开网页之后显示正常考虑是图标库文件未加载完成网页先渲染了，这种情况有什么好的解决方法吗？ ----------------上面问题已经解决-------- ... （只是目前）这个情况有地域倾向，集中发生在浙江，这种随机性，偶然性很难让人觉得是代码有问题，各位有什么看法吗？...

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

0 votes

334 views

1 answer

Is there Python function equivalent to fibermetric in MATLAB?

I'm trying to translate a MATLAB code to Python. I have this line in MATLAB: B1 = fibermetric(Iblur,65,' ... function equivalent to "fibermatric" in python. thank you in advance...

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

0 votes

478 views

1 answer

微信小程序如何通过带参数的url调用方法处理数据？url写在app.json里吗？对应的方法写在哪里？

刚学微信小程序，前端勉强写了点，但是到了处理数据的就不太懂了，之前写springMVC，js学的很差，看不懂小程序怎么调用方法的， app.json 的pages 里面写了跳转的URL，处理数据的url ... }) } }) }, fail: function(res) { console.log(res.errMsg) } }) },...

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

0 votes

625 views

1 answer

pyspider 数据库redis,ES混搭是否合适？

1.database中已有对ES的支持，但文档中并没有介绍 2.database中有对redis的支持，但只有taskdb,是否是建议taskdb放到redis中？ 3.projectdb使用mysql,taskdb使用redis,resultdb使用ES这样的组合是否合理？ 4.对于分布式部署有什么好的建议？...

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

0 votes

294 views

1 answer

amazon web services - At what OSI layer do AWS Network Access Control List operate?

I've read couple of articles about AWS Network Access Control Lists (NACLS): Network ACLs Internetwork traffic privacy ... can help me understand at which OSI layer they operate?...

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

0 votes

241 views

1 answer

java - XSD Validation on integer 0001 or 000

In my application, we use XSD validation to check whether the given text input is a number greater or equal to 0. This ... type or restriction for it? How can we solve this issue?...

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

0 votes

385 views

1 answer

sql中填补空缺时间，用了master..spt_values表和isnull（），查询出来的结果还是缺了时间，怎么解决？

select b.RecordDate,isnull(view_EN_TagHis.MeterName,'-') MeterName,isnull(view_EN_TagHis.Value,null) Value,isnull(view_EN_Tag.TagName,'-') TagName from ... 点的数据，但是要求缺的时间数据以 - 填补上 ...

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

0 votes

331 views

1 answer

dataframe - Renaming multiple cells in a data frame in R at once

I want to group each police station in the UK based on its region, however being a newbie I don't know how ... rbind",lapply(crimedata19_20,FUN=function(files){ read.csv(files)}))...

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

0 votes

99 views

1 answer

隐藏了index.php再写重定向怎么写

隐藏了index.php 现在我还需要做一个URL重写功能。将http://localhost/goods.php?id... 定向或跳转http://localhost/goods/100 apache 重写如何实现，nginx　重写如何实现？如图所写，不起作用...

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

0 votes

485 views

1 answer

计算机专业，未毕业，自己买了一套Java视频看，打算花两个月时间，到时出去找份实习的，算是自己自学吗？

计算机专业，未毕业，自己买了一套Java视频看，打算花两个月时间，到时出去找份实习的，算是自己自学吗？...

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

0 votes

238 views

1 answer

ng-clas的使用问题

$scope.someVariable = true; <div ng-class="{true :'text-success', false :'text-danger'}[someVariable]"></div> 没有效果，看了好长时间，还是没有找到问题在哪里？...

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

0 votes

170 views

1 answer

python - Searching for a range

I have a list of integers in ascending order and a target value. And I would like to return the index of the first and ... desired output should be [2,4]. ANY HELP WOULD BE GREAT!...

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

0 votes

255 views

1 answer

python - iterate row by row in two dataframes based on conditions

I have a dataframe named as dataframeA which contains following data, ID Date From TO Type Price 1 01/01/2020 C D ... the part of duplicate row in dataframeA and change the price....

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

0 votes

321 views

1 answer

Questions regarding the algorithm question in LeetCode - Remove Duplicates from Sorted Array using Java

I am working on an algorithm problem on Leetcode. But first I wrote my answer on my own local compiler. When ... } } And the feedback from LeetCode: enter image description here...

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

0 votes

399 views

1 answer

关于node模板引擎的问题

有俩问题，想问问： 1 想知道在什么样的场景下，会使用node模板引擎进行页面的渲染，而不是通过前后端分离的方式通过ajax请求后台数据来渲染前端的静态页 2 如果用模板引擎渲染（比如jade或ejs），是否对页面上很多的js交互支持不好？换句话说是不是模板引擎其实更适用于业务的展示，而对于CRUD这类的并不适合？谢谢了先...

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

0 votes

498 views

1 answer

BeautifulSoup指定lxml作为解析器报错？

环境： windows 10 PyCharm 2016.3.2 遇到问题：刚开始学python，想用BeautifulSoup解析网页，但出现报错： UserWarning: No parser was explicitly specified, so I'm ... 示BeautifulSoup已经导入了请问我要怎么做才能解决这个问题呢？万分感谢！...

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

0 votes

163 views

1 answer

python 3.x - Creating a table based on a Pandas dataframe

import pandas as pd data = pd.DataFrame({ 'id' : [1,2,3,4], 'text' : ['Sample1', 'Sample2', 'Sample3' ... create a table in postgres using this dataframe in python as a reference?...

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

0 votes

333 views

1 answer

html - When I increase the line-height of inline-block or block-level element, why does the text inside remains centered in the middle?

span { display:inline-block; background-color: red; line-height:100px; vertical-align: ; } <span>Testing</span>...

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

0 votes

438 views

1 answer

Pandas Python - Groupby multiple columns into separate lists

I am currently using pandas, and I am trying to group my data by two columns, the first is 'class_name', and the ... (['class_name', pd.Grouper(key='assessment_time',freq='W')])...

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

Categories

Recent questions

Just Browsing Browsing

Most popular tags