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208 views

1 answer

在如下代码中 return ' '.join(s.split()[::-1]) if s.strip() != "" else s 为什么if s.strip() != "" else s写在return之后，照样可以判断这条Python语句工作过程是怎么样的，尤其是return语句与分支语句的关系...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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100 views

1 answer

HTML中a标签的锚点问题

锚点不是直接定位到所需的位置么？为什么加上base标签换个基准URL就会重新加载，是不是点击锚点先重新发送http请求加载页面然后再定位？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

1 answer

Trouble using Charts Framework in an iOS App project with Swift Package manager

I added the Charts framework (from Danielgindi) to my iOS xcode project using the Swift Package Manager. This installed correctly and ... 2 (12B45b) Swift version: 5.2? Xcode: 11.1...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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954 views

1 answer

retrofit - Sending raw audio data file from Android app to Node.js server

I am new to android and node.js; My task is as follows: I have a raw audio file on my android device. The goal ... on the android device and send it to the Node server? Thanks!...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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352 views

1 answer

activemq的日志会有如下的WARN告警，请问怎么办？

各位大虾好！本人用两台云服务器作了activemq做了主备，但是发现在这两台activemq上的日志会出现大量如下的warn内容，都是说与什么日志有关，请问我该如何解决？：第一台机器，每秒钟刷新很多次：第二台机器，每隔十秒刷新才一次：...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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181 views

1 answer

这个js要怎么使用？

KISSY.add("mui/detail-review/mallphotos", function(e, t, a, r, i, s) { var n = ".", l = "", o = e.all, c, d = false; var u = {} ... =""></div></div> 这个要怎么配合使用，在htm直接使用上面代码，然后调用这个js...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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822 views

1 answer

unity3d - Having trouble marshalling an array of structs from c to c#

I'm trying to marshal an array of c structs into C# (Using Unity) but, no matter the method I use, I ... codebase can be found here: https://github.com/Skurdt/LibretroUnityFE...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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196 views

1 answer

In django if I have more than one database , how do I tell django to create which model-table in which database?

For example I have these two databases. Now while creating a model class, how do I tell django to initiate that model table in the ... ', 'USER': 'root', 'PASSWORD': '123@abc', } }...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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562 views

1 answer

sqlite - Combobox doesn't display the populated values

I created a combobox to show a list of values out of a sqlite database. If I sent the values to the combobox, ... looks like: CACHE: ['081191310912', '071109131090', '01754123353']...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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416 views

1 answer

数据处理的问题（机器学习+数据处理+预测相关性）

最近遇到了一个数据处理的问题，没有什么思路特来提问，希望有高手路过，可以指点一二题目大概是这个样子的：有四个实体A B C D 每个实体都有上百个实例，比如A中有实例a1,a2....an 这些实例之间是有一定关系的，现在给 ... 可能存在关系的那些点，找出最有可能的前10个因为了解的算法并不多，希望高手可以详细说下，指明下研究的方向，谢谢啦！！...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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309 views

1 answer

Turning an <unknown> type in the known type in rust

How can I tell the compiler what type "<unknown>" has, if i do know but statically it cannot be determined? I ... type annotation above for token, but this did obviously not work....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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402 views

1 answer

使用touchid 时弹出的提示框为什么没有“输入密码”这一项？

我使用了touchuid 功能，但是在弹出的提示框里只有使用指纹而没有输入密码的选项 LAContext *context = [[LAContext alloc]init]; ... 还是 LAPolicyDeviceOwnerAuthenticationWithBiometrics 都是这样怎么样能有下图中的enter password的选项？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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431 views

1 answer

请问如下手机客户端的弄能模块的布局一般用的是什么布局？

引用文字一般是用三个系统，table布局，还是就是不同的div布局呢？试了一下栅格布局，感觉如果是table布局方便一些，如果是栅格的话，html代码嵌套会很复杂。请请教一下这种情况一般采用什么布局方式？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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599 views

1 answer

installation - Bcrypt not installing on pycharm

I wanted install flask bcrypt module it showed Error as . Python implementation !="pypy" 'failed with error code 1 in none. While installing Bcrypt...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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373 views

1 answer

c# - Cascading (Dependent) DropDownList using ASP.Net MVC

I have implemented Cascading (Dependent) DropDownList using ASP.Net MVC. This is the tutorial Now I need show alert message ... ", "CountryId"); }; return View(personModel); }...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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647 views

1 answer

unix - Filter a file using a column value greater than a number (awk not working)

I have a very simple question. I am trying to filter a file using values in the 8 column >= 10. I am using awk but for ... t be there (ex: 2.82778125 < 10) Hope someone can help !...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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353 views

1 answer

laravel - Notification for all private channels

I'm using Pusher for one-to-one real time messages between two people. This is my code when you are in the "room" Echo. ... not tied to a chat "room" but rather just to a user?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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205 views

1 answer

javascript - Why doesn't this arrow function work in IE 11?

Below piece of code does not work in IE 11, it throws a syntax error in the console g.selectAll(".mainBars") .append("text") ... in above statement d=>(d.part=="primary"? -40: 40)...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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283 views

1 answer

java - Spring Boot - ApplicationContext Null

I have combined the following two projects: https://github.com/jpenninkhof/odata-boilerplate and https://github.com/ ... --> <plugin> <groupId>org.jacoco</groupId> &l...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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684 views

1 answer

ssl - Using self-signed certificates in nginx Ingress

I'm migrating services into a kubernetes cluster on minikube, these services require a self-signed certificate on load, ... kubectl version: 1.19 using ingress-nginx 3.18.0...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

webstorm 进行sftp代理链接时报错：too many authentication failures

webstorm 进行sftp代理链接时报错：too many authentication failures 这个怎么会出现，怎么解决呢？是mac系统...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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715 views

1 answer

移动端雪碧图background-position 用rem对不准位置除了sass还有什么好的解决方案嘛

移动端雪碧图background-position 用rem对不准位置除了sass还有什么好的解决方案嘛...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

1 answer

HashTable有没有采用快速失败机制？

1，http://www.yq1012.com/api/jav... 由所有类的 collection 视图方法返回的 collection 的 iterator 方法返回的迭代器都是快速失败的：在创建 Iterator 之后，如果从结构上对 ... 起Iterator迭代失败，我代码测试过这个该怎么理解，请问上面提到的哪种情况是正确的...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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206 views

1 answer

vue.js - Building a distributed Vue CLI project when the build binary is included in gitignore?

New to Vue, and using @vue/cli 4.4.6. I used Vue CLI to create my project, and noticed that under node_modules/.bin ... I just don't know what it is. Anybody have any ideas?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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622 views

1 answer

输入框定位在底部，手机端打开，输入框聚焦后软键盘打开为什么会瞬间自动关闭呢？

input聚焦之后软键盘出来又瞬间自动关闭 (fixed 和 absolute一样) 代码： CSS <style> .footer { width: 100%; height: 3.5rem; position ... footer class="footer" id="bottomaa"> <input class="wh_100"> </footer>...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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144 views

1 answer

Python - Showing console output

Right now I have a command which allows you to apply changes to the local files on my hosting server. Is there a way ... in **Master**") Any suggestions or tips would help greatly!...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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183 views

1 answer

用react写一个需求如下的大型网站，合适不？

接到一个项目，前端两个人，项目时间2-3个月名称：教育与培训在线管理服务平台大致需求如下：人员管理：管理各个用户的角色权限资讯动态账号管理项目管理：管理项目活动课程及培训学员的培训安排 ... 学员风采，名师名家如果前端技术选型，用React+Redux+Immutable来实现，是否科学和可行？本人新手，求各位大佬指点 ...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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502 views

1 answer

phpstorm选中多个单词 windows是alt+j ，那mac的快捷键是什么啊？

sublime是ctrl+d，不停的按就是选多个 windows版本的phpstorm是Alt+j 那么mac试了好多都找不到，求助...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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