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733 views

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子组件 <el-upload class="avatar-uploader" :action="UploadUrl()" :headers="{ Authorization: 'Bearer ' + $store.state.user.token }" ... error submit!!'); return false; } }); }, 报错截图...

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

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531 views

1 answer

python - Cross-Validation in LSTM - ValueError: Input 0 of layer sequential_3 is incompatible with the layer

I am trying to perform a 10-fold cross-validation on a LSTM, the code is the following: # Initialising the RNN regressor ... equal to None. Has this ever happened to you? Thanks!...

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

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217 views

1 answer

How to solve this in java eclipse square of all numbers and sum

Given the sequence of numbers: [1,2,3,4,5,6,7,8,9,10], design a program that will square each number in the sequence ... public static int square(int num) { return num * num; } }...

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

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398 views

1 answer

machine learning - Can I use autoencoders for dimensionality reduction with a very small dataset?

I have a numeric dataset with just 55 samples and 270 features. I'm trying to separate these samples into clusters, ... shuffle=True, validation_data=(x_test, x_test), verbose = 1)...

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

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522 views

1 answer

r - Trouble reading multiple rds files at the same time and saving them to a single data frame

I have a for loop set up for some rds files and I need to find a way to read said files. I could manually ... ") : invalid 'description' argument" Any help would be appreciated!!...

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

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517 views

1 answer

有没有爬虫大佬，问个模拟登录的问题。关于 discuz

模拟登录藏宝湾一直都是失败其他论坛都可以， head 头也看过了，cookie 也看过了，没什么差死活就是登录不了，用 okhttp3 或 jsoup 没一个能登录上的跪求大佬指点迷津...

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

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207 views

1 answer

python - Simplify list comprehension when a call to function returning a tuple is necessary

I have the following function: def get_cofactors_matrix(self) -> 'Matrix': """Returns the cofactors matrix""" ... result.append(result_line) What would be a better expression ?...

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

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1.2k views

1 answer

golang 生成 json 只能通过 struct 来么？

网上给的方案都是先根据你的 json 结构定义一个 struct，然后 json.Marshal，我在用的时候觉得好麻烦如果有很多 json 结构，那岂不是都要先定义结构体我去 github 上找了一下，没有可以直接通过 api ... 的库比如 c 语言的 cJSON_add* 就很方便啦刚入 golang，有了解的朋友请指教一下，先行谢过 ...

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

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382 views

1 answer

Jackson 如何全局配置序列化器和反序列化器

如图这样使用注解需要每个属性上都配置，是否有办法能全局配置呢...

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

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282 views

1 answer

Python add list items with condition

I have a scenario like this: main = [200,300,400,500] sec = [0,0,1,0] new = [] The condition is, if element in ... same as previous. output has to be like, new = [200,500,500,900]...

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

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411 views

1 answer

centos在下载的时候，为什么有这么多版本，他们有什么区别吗？

...

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

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595 views

1 answer

usage of ref attribute on HTML string - ReactJs/Javascript

I want to use ref attribute on a conditional span element that generates based on reactJs props. this span element is ... how to define the attribute ref on a JSX string? thx...

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

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246 views

1 answer

Nifi IMAP consume Processor raising error

I am getting below error in IMAP Consume Processor. 2021-01-08 17:01:22,112 ERROR [Timer-Driven Process Thread- ... common frames omitted Please help me to resolve the above error....

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

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520 views

1 answer

请问怎么把三张表横向拼接成一张表

假设在dolphindb database中有三张表如下： t1=table(1..3 as id1,4..6 as v1) t2=table(4..6 as id2,5..7 as v2) t3=table(7..9 as id3,6..8 as ... 并成如下一张表：即这张表的列是三张表的所有列的合集请问在dolphindb中有什么简单的方法？...

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

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495 views

1 answer

spring jms - Overriding a method in DefaultMessageListenerContainer (JMS)

The method I want to override is refreshConnectionUntilSuccessful. This method handles shutting down the connection to the ... way I can detect this happening without doing this?...

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

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493 views

1 answer

【MySQL求优化指导】几十万条记录就查询了一分多钟

1 问题说得有点啰嗦，但我希望把问题前因后果阐述清楚，Come on~,其实第一条就是问题，执行语句及其结果如下，请问有什么优化操作呢： sql> SELECT alarm.name as 'name', `type`, count(`type`) ... 提问：所以，求大佬指教，1中的查询语句我该怎么优化呢？表设计 sql语句优化方面都说嘛，不胜感激！...

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

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442 views

1 answer

loops - Can you iterate through all objects under an abstract class in PHP?

Rephrased: can you iterate through all child objects instantiated from classes that are under an abstract class?...

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

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231 views

1 answer

php - How to enable CORS in Laravel?

I am in Laravel 5.8 - I kept getting this CORS issue I've tried php artisan make:middleware Cors Add these code < ... same CORS issue How would one go about and debug this further?...

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

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1.7k views

1 answer

ubuntu 16.04 - After upgrading PHP version - SimpleSamlPHP is not working

I have upgraded my PHP version from 5.6 to 7.4 in my ubuntu server, then SimpleSamlPHP is not working as it is showing an error ... 16.04, Apache 2.4.18, PHP 5.6, SimpleSAML 1.11....

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

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359 views

1 answer

微信浏览器下载文件下载不了？？

题目描述一个通过微信查看和下载pdf文件的功能，用的是vue+pdfjs-dist，渲染出 pdf 没有什么问题，下载pdf文件在PC端的chrome浏览器和手机端的chrome浏览器是正常的，但是在 ... "require('@/assets/logo.png')" download="logo.png" target="_self">下载文件</a>...

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

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391 views

1 answer

typescript null/undefined值被推断为什么类型？

环境: VS Code Version: 1.47.3 tsc Version: 4.0.0-dev.20200727 tsconfig.js: "strict": true, code: let x = null; // x 是 any type let ... type y = 1; // error, y 是 null type x 到底是什么类型？...

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

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746 views

1 answer

delphi - How to show the PrintDialog just after showing the preview in FastReport?

I'm using Delphi to develop a desktop database application, and I've an invoice report made with FastReport, I know ... preview. The user then can print it or cancel the dialog...

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

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334 views

1 answer

gcc/g++的优化让程序无法运行?

我实现了一个基于D*-Lite的路径规划算法。当我没有开启优化时（-O0），程序可以正常运行。但是当我开启优化等级时（-O1/2/3）会导致程序无法终止。在Visual Studio中，无论是debug模式还是release模式都可以正常运行。在以上情况中，代码均相同。有没有大佬指点一下，不知道怎么下手解决这个问题。...

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

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283 views

1 answer

python - How can I implement multiclass logistic regression from scratch?

I've been trying to implement multiclass logistic regression. Following is my code for two classes. class LogReg: ... a multiclass classifier in a similar fashion as shown above....

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

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154 views

1 answer

我使用docker stack部署应用,如何更新应用?

我重新编译了镜像然后用 docker service udpate app 结果应用根本没有更新...

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

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113 views

1 answer

js移动数组的顺序

如何将数组 ['a', 'b', 'c', 'd', 'e'] 中的 index==3移动到index==1中, 变成 ['a', 'd', 'b', 'c', 'e'] 要求: 代码越简短越好...

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

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257 views

1 answer

python - Saving and loading a form in PyQt5 with QFormBuilder

I'm trying to save my form and load it later, but even after following the Qt docs (https://doc.qt.io/qt- ... property name="autoFillBackground"> <bool>false</bool> </property> <pr...

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

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497 views

1 answer

microsoft dynamics - Running report from Task/Job Scheduler

I'm trying to run a report that execute some SQL queries in NAV 2015 If I run the report manually it's working ... ; END; I also can't find the dotnet System.Data.SqlClient...

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

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