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python - AJAX POST request with Flask returns method not allowed error

I recently started to learn Flask. I am trying to build a simple registration form, but I am getting a Method not allowed ... fill out the form !' return msg Thank you in advance!...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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刷新网页恢复超链接颜色

类似这个问题 https://ostack.cn/q/10... 设置超链接颜色默认blue，移动到超链接上显示red，点击后显示fuchsia 因为网页存在cookie而刷新后超链接颜色不能重置，现用jquery ... ; }).click(function(){ $(this).css('color','fuchsia'); }); </script>...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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DolphinDB GUI运行不了

我安装DolphinDB database的GUI后，运行gui.bat一闪而过，啥错误都没有在cmd里执行gui.bat,也是直接一闪，没任何信息： (base) E:dbgui>start java ... autocomplete.jar -Dlook=cross -Xmx2048m com.xxdb.gui.XXDBMain 请问有可能是怎么回事？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How can a .Net 5 Visual Studio Project / Solution that reference a .Net Core 3.1 NuGet package compile successfuly?

Right to the point: How can my Visual Studio Solution / Project written in .Net 5 successfully compile and run when it ... would be helpful. I am just trying to understand this....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Change font of numbers *only*

This may be a trivial question, but I couldn't find an obvious answer, so here goes... I have a site that ... in an align environment) should be typeset using font-family:inherit?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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物联网，快速搜索局域网其他WIFI设备的思路

如题，请问怎么快速搜索当前局域网中的其他兼容的网络设备？我目前是首先获取本机IP（假设是192.168.0.100），然后循环遍历当前网段，192.168.0.1~192.168.0.255，发送255个请求，看看哪些请求有合法的回应，有什么简便的方法么？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python selenium库对象怎么指向当前的webdriver对象呢？

wd = webdriver.Chrome('D:Program FilesPythonPython38chromedriver.exe') wd.implicitly_wait(10) wd.get('http...........................') ... 改成当前 webdriver 对象，请问该怎么写呢？因为有时候他不叫wb ...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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MongoDB update each element of an embedded array differently

I have a collection of documents (e.g. "students") like this: { _id: ObjectId("C24eb7aC0189B18A3D3Ca0FD"), name: "john ... what is the right way to achieve this? Thanks in advance...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - SQL: Delete Rows from Dynamic list of tables where ID is null

I'm a SQL novice, and usually figure things out via Google and SO, but I can't wrap my head around the SQL ... INSTANCES. INSTANCES Instance ID Detail ID 1000 123 1001 123 1002 234...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Fetch a single record from table using list comprehension in python?

def fetch_maxno(): dsn_tns = cx_Oracle.makedsn('host', 'port', service_name='serviceno') connection = cx_Oracle.connect(user=' ... guide me is there any other way to get this....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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使用pypdf2出现invalid literal for int() with base 10: b''

我使用python的pypdf2模块打开pdf文件时出现invalid literal for int() with base 10: b''错误提示，该文档十一分图纸，由浩辰cad看图王输出的，该pdf双击可以正常打开查看，但是使用不了pypdf### 问题描述 ... 相关代码粘贴代码文本（请勿用截图）你期待的结果是什么？实际看到的错误信息又是什么？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Android app remote control Led via Bluetooth connection, and write(@NonNull byte[] b) function failed

I work on an Android app to remote control Led on/off, and change its brightness via HC-05 bluetooth ... Any suggestion is appreciated. Should overwrite the onPause() function?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net mvc 4 - SelectListItem in Selected Property doesnt work

Controller Kullanicilar kullanici = db.Kullanicilar.Where(f => f.Id == userProfileModel.UserModel.Kullanici.UserID).FirstOrDefault(); ... .. true value false result What do i now?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vscode typescript tasks.json 能不能用npm命令执行？

请问如下配置，能不能直接用 npm run xxx 配置执行？不用每次按 ctrl + shift + b tasks.json { "version": "2.0.0", "tasks": [ { "type": " ... " ], "group": "build", "label": "tsc: 监视 - tsconfig.json" } ] }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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全局变量的值 - 修改问题。

【情况】我定义了一个全局变量k → 在main函数中，令k=1 → 在被调函数中，令k=0（main是先令k=1，再调用的函数） → 最后cout<<k，k=0 我定义了一个全局变量i → 在main的for循环中 - for(i= ... 当被调函数的for循环修改为 - for（int i=0；...）结果对了【疑惑】 Q：为什么会发生这种情况？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python selenium find a button through relative xpath

I would like to get the contact details (email and phone numbers) of the seller. [<ul class= ... pl/oferta/faller-170601-plyta-dekoracyjna-droga-brukowana-h0-9303217744#aboutSeller...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Boolean Full-text returns empty set

I'm using boolean full-text search on a table. This is my database: CREATE TABLE `data_mahasiswa` ( `nim` varchar(11) ... can I fix this? Any help is much appreciated, thank you....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Powershell, converting a function to be called as a job

I have this function that I would like to pass as a start-job call. function Write-Registry { param($RegFileContents, ... to do it properly. If someone can help me, thanks....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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django-Channels-niginx-uwsgi的上线部署，求助!

项目uwsgi的配置，http连接:8000端口 socket连接:9001端口 nginx的配置前端的连接但是最后报错了502...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - KeyboardView is depecrated and I need a custom implementation of the class

I am making an IPA keyboard. There aren't many great IPA keyboards out there and if there are, they don't fit all ... have to make the layout scrollable/pannable. How do i do that?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Node.js websocket error "Error: listen EADDRNOTAVAIL Error: listen EADDRNOTAVAIL"

Application work fine on localhost .but when its connect to server it getting error. I connect server through port 22 ... 226:58818 198.41.30.199:80 CLOSE_WAIT 8104/epiphany-brows...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ssis - Failure in adding new transformed column

First question here :) I'm working on a project where i need to copy only 3 columns from Employee table (ID ... .Columns[Seniority]". (Microsoft Visual Studio) Please help. Thanks,...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Solving binomial distribution question in R language

Insurance policies are sold to 10 different people age 25-30 years. All of these are in good health conditions. The ... But its printing : [,1]. Can anyone guide? Thanks...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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有开源的小程序平台SDK么？

如果想在自己的原生 APP 里实现小程序功能，类似这个https://ask.dcloud.net.cn/docs/#https://ask.dcloud.net.cn/article/36941，但是这个SDK源码没有完全开放，各位大佬们有没有其他的推荐呢...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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如何设计 restful bool 查询?

假设有如下模型: type User struct { Name string Enabled bool // 这是一个 bool 类型的字段 Online bool // 这是一个 bool 类型的字段 // // 其他字段... / ... { Name string Enabled string // 注意 } 请问一般解决这种问题的惯用方法是什么?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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如何选中所有孙子元素的偶数项？

如何选中 .outer 后代元素中的所有偶数项p元素 <div class="outer"> <div class="item"> <p>Lorem ipsum dolor sit amet ... ipsum dolor sit amet consectetur adipisicing elit.</p> </div> </div>...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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类名::类名()这是什么意思

Person::Person() { count = 0;//count是静态成员变量 } Person::Person()这是什么作用...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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有没有一个对软件项目的立项做评估的工具？

开发，测试方面的人才实在太多了。一抓一把。但是，对于软件项目立项的评估，不知道是否有相应的理论以及实际可用的软件？我的意思是，立项前，用一下这个评估工具，然后得出结果，能不能做，风险多大，如果不能，需要加强那些方面。...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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