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938 views

1 answer

flutter - Record and Play and play a local audio file in one page

I want to be able to present the user, on the same page, with a simple recorder which plays the recording back and an audio ... '), ), body: makeBody(), ); } }enter code here...

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

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1.1k views

1 answer

hexo使用next主题，出现这个问题，主题不能显示。

使用hexo init安装后，通过hexo s启动服务可以看到是对的了然后安装next git clone https://github.com/iissnan/he... themes/next theme: next 启动 hexo s 这是后localhost:4000显示的不是next官网上说的页面，这是怎么回事呀 package.json...

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

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2.1k views

1 answer

How to send a binary image to a server from react native?

I have a backend server that receives images as binary data. I'm using ExpoImagePicker to take pictures, then I transform my ... 's not. Any idea what I am doing wrong? Thanks....

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

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1.9k views

1 answer

typescript - How to properly use default values for properties on Angular 11 / TS 4?

I researched a lot but couldn't find out what happened with default properties on angular 11/TS4. For example, on Angular ... please let me know if anything is not clear. Thanks!...

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

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2.2k views

1 answer

elementui el-table 根据筛选条件动态渲染不同的表头和数据

现要根据一个条件切换，由接口返回表头和表格数据，动态显示表格。表格展示列很多，大概二三十列，切换时表格重新渲染特别慢，怎么优化？分页表格，一页显示10条，接口响应的很快，应该是页面表格先销毁再循环遍历生成慢的原因，具体的机制也不是很清楚，如有遇到类似问题的前辈，能帮忙解答一下吗？...

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

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2.7k views

1 answer

Ansible: Combine 2 json object with with_item

I have the following playbook: --- - hosts: localhost gather_facts: False vars: arraylist: [] host_list: ["abc.cloud.com" ... [{"pb_os_family": "Linux"},{"pb_os_family": "Linux"}]...

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

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2.3k views

1 answer

小程序wxml获取动态数据

在wxml页面中想要获取一个动态的变量，但是总是被解析成字符，例如{{ 'view_' + index}} 解析出来是view_1、view_2、view_3…… ，怎么样获取变量的值呢？尝试过{{ ['view_' + index] }} 但是一样不行，小程序里要怎么解决呢？...

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

0 votes

2.4k views

1 answer

gitlab - Can't get analises report on Sonar Cloud

I use Sonar Cloud to analyze my code with Gitlab CI. How it is usually in the SONAR_HOST_URL I put https://sonarcloud. ... /cache script: - sonar-scanner only: - master - IDEA-022...

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

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2.1k views

1 answer

这样的样式，如何用css来实现

...

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

0 votes

2.3k views

1 answer

微信活码开发思路，如何实现自动切换下一个群，数据库怎么设计？

微信群活码实际上就是一个中转页面，当一个群的扫码次数达到一个阈值，就自动切换下一个新的二维码近期在研究微信群活码系统的开发，想从程序架构的角度去研究活码系统，我需要一个实现思路我的思路是： 1 用户打开活码页面，先获取子码总数 ... 路我不知道如何设计数据库大家有没有更好的思路？数据库应该如何设计，应该怎么架构整个二维码自动切换的代码运行结构？...

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

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2.4k views

1 answer

Java中优雅、高效的将引用类型对象构成的 List 分字段转数组

有这样一个模型类 public class User{ private Integer userId; private String userName; // getter、setter 就不写了 } 通过查询SQL获取到该对象的 List 类型的数据 - 数量未知我想要把 userId 构建为一个 Integer 数组，要如何优雅、高效的做？...

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

0 votes

2.5k views

1 answer

android - App actions doesn't work with google assistant for Internal testing version

I developed an application with react-native and I add app actions to the application. I followed instructions on ... work with voice assistant without create preview by AATT?...

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

0 votes

2.7k views

1 answer

如何修改textarea里滚动条的cursor属性

::-webkit-scrollbar { cursor: pointer !important; } /*滚动条里面小方块样式*/ ::-webkit-scrollbar-thumb { cursor: pointer !important; } 上面这两个写了都没起作用...

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

0 votes

2.8k views

1 answer

laravel - why docker container is not runnig in windows?

Help me friends, please. I'm a noob in docker. I'm working with laravel an create project with Docker in ... linux debian build 19042 Docker version 20.10.2, build 2291f61...

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

0 votes

2.9k views

1 answer

laravel - why docker container is not runnig in windows?

Help me friends, please. I'm a noob in docker. I'm working with laravel an create project with Docker in ... linux debian build 19042 Docker version 20.10.2, build 2291f61...

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

0 votes

3.2k views

1 answer

有人使用过bootstrap fileinput 插件吗？他的断点续传服务端是如何用nodejs操作的？

最近做断点续传，因为不小心用了这个插件。但语言限制了我的知识点官方文档：https://plugins.krajee.com/fi... 因为它是用php语言做的服务端。服务端切片合并没看懂。nodejs需要什么流程呢。以及返回配置是否是这样？...

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

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3.0k views

1 answer

服务器每次启动后一天左右就无法连上远程桌面

一台windows server 2008 R2服务器，一直好好的运行几年了，最近突然出现一个问题，就是其它电脑没法远程桌面连过去，提示如下：重启服务器后就可以连，但过一天左右又会连不上。日志里出现过这种记录，不知道有没有关系希望得到帮助，谢谢。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.2k views

1 answer

java 正则表达式问题

网址为： https://gongshang.mingluji.com/beijing/name/北京聚源润鼎文化有限公司 ResponseComs 是请求这个网址返回的内容string 下面的代码： String ... u4e00-u9fa5].*?(d+)</span></span> region=0,46452 lastmatch=]...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

Problem with replacing text in sed containing "|"

I am trying to replace "watermarks" to nothing from my pdf using sed command to increase text size on my e-reader, ... some words or/and sentences it works fine and is fast....

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.8k views

1 answer

javascript - How to Bring All of an Objects Properties ForeFront?

Begin: The Math object in JavaScript can prove to be extremely useful. In a page using the Math object repeatedly, ... understand that this may be confusing. Thank you for reading....

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.6k views

1 answer

threejs可以加载stp文件嘛？

或者说stp文件怎么在前端实现加载预览，还有体积、表面积的计算及长、宽、高...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.7k views

1 answer

mysql的left join索引只使用join的表的索引？

如图，为什么tb_moment的momid是唯一索引，在explain发现却没使用到这个字段的索引，只用到了left join后面那个表的索引？有什么办法让主表tb_moment也走上索引。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.6k views

1 answer

js中如何创建一个undifined的对象（函数），内含有值。例如 typeof(a) = undifined

原因是发现document.all方法的Boolean值为false，而使用typeof（document.all) 返回值是undifined，但是document.all确实是有值的。是否有某些方法可以重写对象本身的Boolean值的方法呢?...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.7k views

1 answer

High-performance HTTP or other server?

I'm writing a service that keeps in memory a data structure that can be queried somewhat like a hash table and ... if there are higher performing HTTP libraries that can do this....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.0k views

1 answer

debugging - Is there a way to take a 'snapshot' of a python debug session at a breakpoint?

Is there a way to record the state (or take a 'snapshot') of all local/global variables (and call stack and other ... Doesn't have to be VSCode compatible, but that would be nice....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.8k views

1 answer

vue中编辑的时候变成input框，取消编辑因为双向绑定值也修改了，如何还是原来的

<td v-if="!editorStatus">{{ register_bussiness }}</td> <td v-else class="registrar" ><el-input v-model="register_bussiness" /></ ... { register_bussiness }}</td>里面的值也改变点取消想要还是初始值...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.5k views

1 answer

ios - How to use reload item at instead of reloading all the data with firestore

I have a chat app use Firestore, when a new document or -> (message), added to the Firestore my collectionView reload all the data ... , at: .bottom, animated: true) } } } } } }...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

2.9k views

1 answer

一个面试题，根据json结构生成html表格

我的输入是 { A1: { B1: { C1: { D1: 1233, D2: 11 }, C2: { D1: 10, D2: 10 } }, B2: { C1: { D1: 10, D2: 11 }, C2: { D1: 10, D2: 10 }, ... ... 更新: 如果有代码演示最好了，底下评论的朋友谢谢了，我看了文章还是想不出来改怎么写代码......

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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