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Is it wrong to assume that Github will retain the data in the database from Android Studio?

I'm new to Android Studio. I created an Android application where the user needs to login with the user's email ... the database when the user download my source code from Github?...

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

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3.7k views

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.net core - Error after modifying launchSettings: The launch profile "(Default)" could not be applied

I'm setting up my project to use dotnet watch run in my launchSettings.json under Visual Studio 2019 Preview 16.9 ... not supposed to happen. How can I troubleshoot this messages ?...

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

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778 views

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windows - Python create exe file with pyinstaller

i write a program that detected and recognition visitors with face_recognition . i try to make exe file with ... * https://github.com/shahram-arefhakimi/Visitors_with_PySide2 **"...

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

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865 views

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一年数据接近1个亿非结构化数据的场景，用的什么数据库合适？

我们想要全面的记录用户行为，之前买过成熟的统计分析工具（类似百度站长），但想要的很多功能没有，很多不需要的功能倒是挺多的，结果就是成本不低但达不到我们的预期所以考虑自己做套简易的收集系统，搭配本身系统自身能够把数据维度做多一些 ... 写入就不会再更改了非结构化数据量大这些特性出发有没有更合适的简单点的数据库呢莫非必须得走Hbase这些大件才行么？...

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

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10.3k views

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php - Renumbered from n to 1 in ajax

I am developing a prestashop module to position products in a brand. I created a table with id_product - position and ... idea of ??the problem. Thank you for your help....

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

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2.5k views

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htc vive - I can't install OpenVR on Unity3D 2019.3.15

I installed SteamVR and then I installed OpenVR manually through the package manager. I managed to run the game on HTC Vive ... be installed yet it doesn't allow me to install it....

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

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2.1k views

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api - Spring version impacting assertEquals evaluation

hows going? I'm studying Kotlin+Spring+MongoDB and I got a problem. My person class: import org.bson.types.ObjectId import ... to make it work in the most current version I use....

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

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3.1k views

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java - API doesn't response anything

I am making an API with Spring, I added the authentication with JWT but the postman does not throw ... } } REPOSITORY PUBLIC: https://github.com/oscarmaxgithub/MarketSpring...

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

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2.6k views

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使用exceljs导出，本地没问题，打包后报错

使用exceljs导出，本地没问题，打包后报错刚开始的写法：报错：然后我又按照文档上面讲的照着文档的写法后：又还是报错：有没有大佬知道这个该怎么解决啊，该怎么写这个引入文档地址：https://github.com/exceljs/exceljs/blob/master/README_zh.md#%E5%AF%BC%E5%85%A5...

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

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961 views

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请问一下 typescript 可以做到限定传入的参数为几个常量中的一个？

请问一下 typescript 可以做到限定传入的参数为几个常量中的一个？比如希望传入的参数size是'L','M','S'中的一个...

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

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763 views

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apache 无法更改端口号

在win10下使用apache，设置好了httpd.conf的SRVROOT, 将servername设置成localhost或者是localhost:8888之类的，listen参数也跟着一起设置，但是无论如何，都只能在localhost上看到"it works"，加任何端口号都没办法访问，不知道是哪里出了问题...

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

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3.4k views

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js分解url地址

http://111.111.11.11/igserver... js怎么分解url比如 http:// 219.142.81.86 / igserver / ogc / kvp / TAS10R52000J49 / WMTSServer 我要的是TAS10R52000J49这一个...

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

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1.8k views

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数据的转换方法

let data = [ { type:'A', list: [ { id: 1, price: 20, num: 23 }, { id: 3, price: 10, num: 21 }, { id: 5, price: 88, num: 9 } ] ... 4, price: 0, num: 0 } ] } ] 请教一下，请问有什么比较好的的方法来实现？...

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

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821 views

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小程序下拉刷新为什么卡住不动？

真机调试下拉刷新时我看到已经触发onPullDownRefresh方法了但是那个动画一直都在动这是怎么回事？...

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

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736 views

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一个方法怎么只初始化一次

我有个分页接口，先要查total总条数在初始化分页组件，这个分页插件怎么只初始化一次,现在我用settime表面上搞定的，但是肯定不是这样，有思路吗？谢谢 $.ajax({ ... ... ... ... }); setTimeout(function(){ $("#page").initPage(tot, 1, GG.kk); },1000)...

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

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644 views

1 answer

javascript - Console log of array is empty

I have these two code examples: no1 const r = new Array(); for (i = 0; i < 5; i++) { const vari = ... it the difference between no1 and no2 or cheerio is making a problem? Thanks!...

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

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3.6k views

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关于react的滚动条问题，出现会自动到顶部去，怎么解决？

我使用react hook 实现加载更多，手机到底部之后，请求数据，添加在列表数据中，但是滚动条会重新到顶部，我就又要滑动下来，怎么解决这个问题呢？？ useEffect(() ... ) { setShowLoading(false); } } else { setShowLoading(false); } } }, [houseLoading]);...

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

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3.9k views

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如何用css实现左侧label宽度一致且为最长标题的宽度，宽度不固定自适应

如图，想知道如何只用css而不借助js实现左侧的label们为同一宽度，且随宽度最长的label自适应，达到每行对齐、每列对齐且左侧一列宽度自适应的效果，求各位大佬拔刀相助...

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

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3.4k views

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linux - for loop without List in the shell script

I am reading a shell script( /opt/openfoam8/bin/foamCleanPath) from OpenFoam. In this script, there is a code segment: for dir do .... done I ... -------------------------------...

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

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3.4k views

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为什么 StatefulWidget 被分成 StatefulWidget 和 State 两部分?

看到这样一个答案，百思不得其解：一方面是为了保存当前 APP 的状态，另一个重要的原因就是为了`性能`！当 UI 需要更新时候，假设 Widget 和 State 都重建，可是 State 里保存了 UI 显示的数据，State 重建，创建新的 ... 了性能(不知道理解是否正确) 我想问的是我的理解是否正确啊，希望有人能用大白话给咱解释一下，万分感谢 ...

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

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4.8k views

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need to calculate a stock indicator from raw data in SQL for each individual stock ticker using TA-LIB and python, pandas

I need help with some logic here. I am using pyodbc to query a table in SQL and building a dataframe in order to use ta- ... .round(3) df1.to_csv('3.csv', index=False, header=True)...

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

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3.8k views

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TypeScript函数重载中无法访问形参

假设我们有下面这样一个重载函数，可以不传参数，也可以传入两个或者四个，现在这样的写法在ts中会报错 function show(): void; function show(x: number, y: number): void ... { console.log(x); // Cannot find name 'x' } show(); 这样的写法有问题么...

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

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3.8k views

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python - LabelEncoder vs. onehot encoding in random forest regressor

I am trying to use RandomForestRegressor using python. I know that for numerical columns there are no need to scale ... worse(even though by little bit) than one hot encoding?...

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

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3.8k views

1 answer

How to initialize an array object with extra properties in TypeScript?

I need to create an object of the following type: type ArrayWithA = [number, number, number] & { a: string }; I do this as ... : type FuncWithA = ((string)=>void) & { a: string }?...

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

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4.3k views

1 answer

请教前端实现获取dom元素快照的方法

我在做自定义大屏, 一个大屏是有若干个iframe构成, 大屏列表展示的时候想显示下每一个大屏的缩略图, 所以我就想在大屏编辑预览时获取大屏dom元素的快照, 作为这条数据的缩略图显示. 试过了 ... allow-popups" frameBorder="0" srcDoc={html} /> 有没有大佬做过类似的功能, 请给我点思路或者建议....

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

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3.4k views

1 answer

weex中的web组件设置宽高的问题

想做一个以weex为壳，用web标签引入外部网页的嵌套式app，在给web标签设置宽高的时候出现了问题三种设置宽高的方法，在电脑上运行的时候都能出现，但是一二种方法在weex官方的手机端weexplayground中测试就是空白，只有第三种写出具体宽高的能展示，但是我这个是个需要全屏展示的呀，写死宽高肯定是不行的，请问有什么解决办法吗...

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

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3.8k views

1 answer

javascript - Selecting previous element in DOM

I'm having a hard time with some JS DOM traversal. I'm stuck with html that's something like this: <h2>Header 1</h2> <div ... ="person-name">Emily Jones</h4> </div> </div> </div>...

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

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4.5k views

1 answer

如何卸载Sentry？

环境：centos7 使用的 getsentry/onpremise 安装的 sentry。现在想卸载 sentry 我自己执行了 docker-compose down 然后把相关镜像删掉了，把 git 拉下来的 onpremise 删掉了。但是重新安装时报错现在想把 sentry 卸载干净重新装，应该如何卸载？...

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

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