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0 votes

606 views

1 answer

python - Why numpy.fft.rfft/irfft transforms do not bring the input back?

I have a list, when I transform it by np.fft.rfft and bring it back by np.fft.irfft it does not work for ex(2) but work with ex(1 ... , 6], [45, 6, 3], [847, 5847, 6]] Please help....

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

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582 views

1 answer

请问 powershell 有类似 linux sudo -s 功能吗?

请问 powershell 有类似 linux sudo -s 功能吗? 有时打命令突然需要管理员权限，这时候只能去打开 powershell run as admin 不能像是 linux 输入 sudo -s 就能简单切换 ... 或 PowerShell 普通用户切换为管理员_bobo_bc的博客-CSDN博客 Windows命令行切换管理员权限的问题...

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

0 votes

1.3k views

1 answer

model view controller - Forms inside foreach loop MVC

I have situation where MVC controller has sent list of records. Those records are displayed in view in order ... Details",new { transferHeaderId = update.TransferHeaderId }); }...

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

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521 views

1 answer

windows - Understanding default arguments in range and list slicing in Python

Good day. I don't entirely understand this code. I understand that the syntax for range is range(start, stop, step/ ... -1, which is the default argument? Thank you very much....

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

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684 views

1 answer

scala - How do I create a shared SparkSession fixture in scalatest that persists between test suites?

I am very new to Scala and Scalatest, but have some experience with Pyspark, and I'm trying to learn Scala from a ... appear that until sbt is exited the context is not stopped?...

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

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652 views

1 answer

vue的多级联动问题

如图所示，比如我选择了河北，点了石家庄，:class="item === nowPrice ? 'lan' : ''" 这样就加上了颜色，然后点击确定没问题再打开显示石家庄没问题，如果不点确定点body关闭之后再打开应该还是全球，这应该怎么实现，求指导...

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

0 votes

763 views

1 answer

codeblocks - Use pointer to sum numbers of element and stop after 0

Write a program using pointers that counts the number of elements that are nonzero and stops when a zero is found from the given array. Display the ... 9, 8, 5, 1, 3, 0, 2, 1, 6}...

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

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627 views

1 answer

数据库中用户使用旧数据进行更新如何保证更新必定失败

问题描述假设当前有数据库表，其中一个字段为权重，现有数据行ABCD，其权重字段的值为1234；在某一刻甲打开页面，对其进行查看；然后乙在甲之后，对数据库进行操作，插入数据E,其权重为5，并随后调整权重为A-1 B-5 C-3 D-4 ... 借版本锁进行处理，即甲更新时版本不对，则直接抛出错误，并让前端刷新页面但是我的组长说不对，让我自己好好想想 ...

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

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731 views

1 answer

java - Traversing an XML and Adding Elements

We are currently trying to remove XMLBeans from our project and trying to get everything to JAXB. While ... (); cur.insertElementWithText(elementName, nameSpace, elementValue); }...

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

0 votes

1.1k views

1 answer

php - Laravel How to loop through arrays and get values by key

In my laravel-application I have two arrays, one called "headers" and one called "rows" and I only want the data from the " ... > request()->email ?? null ]); Thanks in advance......

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

0 votes

1.0k views

1 answer

tkinter - summarise code in python with many if-clauses

I am currently using a lot of code for this. Is there a way to summarise the code? Thanks a lot! I would like to ... '') self.rubbing_marks_border_Type["A2"].set('') .... '''...

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

0 votes

999 views

1 answer

android - Why won't a Flutter app that's embedded within an existing native iOS app load its own assets?

I've used Flutter's add-to-app documentation to run a small Flutter application as a native module inside an existing ... anyone done this before and know what to do to resolve?...

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

0 votes

1.1k views

1 answer

How do I make a custom path using python and matplotlib?

For my study project, I need to write an algorithm that tries to find the best solution to fold a protein. In order ... lay next to eachother and can bond? Thank you in advance!...

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

0 votes

1.3k views

1 answer

arrays - What should i do with this error in python?

i write this code in python def RangeSubjektif (_low, _high, _step): subjektif = np.arange(_low, _high, _step) return ... mean? and what should i do to remove that warning??...

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

0 votes

1.3k views

1 answer

请问，vue中methods传参，改成 computed计算属性然后返回一个函数的写法有什么区别吗，那种更好或者都一样？

先上代码： html: <ul id="app"> <li v-for="item in 20" :class="computedClass(item)" @click="clickIndex = item" >{{item}}</li> </ul> js: data:{ ... 两种方式哪种更好，为什么？或者是说都一样？对于这种情况有没有更好的解决办法...

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

0 votes

1.3k views

1 answer

echarts中不连续且间隔不一致的时间如何有规律的显示？

就比如说如何达到Excel中图表的效果？比如下面这种的表很明显上面的日期间隔是不一致的，然后用Excel生成图表的时候，会智能的按照日期间隔空出不一致的间隙，如下图很明显，从数据圆点可以看出，是按照日期间隔分布的（而且只 ... 怕每个时间间隔其实是不一样的）所以要如何处理上面图表的数据，才能在echarts里达到和上面Excel里图表一样的效果呢？...

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

0 votes

1.4k views

1 answer

flask多对多关系怎么根据关联属性进行排序或查找？

标签Tag和文章Post是多对多的关系，标签model如下： class Tag(db.Model): __tablename__ = 'tags' id = db.Column(db.Integer, primary_key = True) title = db ... 根据post数量对tag进行排序获取所有post数量大于1的tag 该怎么写查询？...

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

0 votes

1.8k views

1 answer

elastichead is not connecting with elasticsearch docker container

my elastichead is not connecting even when my elasticsearch container is running. I can't understand the problem. (env) ... no connection. my system is windows 10 home edition....

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

0 votes

1.8k views

1 answer

vue项目本地测试的时候请求都没有问题，但是发布测试版的时候get请求的请求方式不见了，无法发送请求。

### 问题描述 vue项目本地测试的时候请求都没有问题，但是发布测试版的时候get请求的请求方式不见了，无法发送请求 ### 问题出现的环境背景及自己尝试过哪些方法问题背景，初次进入首页请求菜单列表的时候，请求里没有携带请求方式 ... 期待的结果是什么？实际看到的错误信息又是什么？期待的结果：请求成功！实际看到的错误信息：请求没有发送成功！...

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

0 votes

1.5k views

1 answer

请问这段代码是什么意思？它的时间复杂度是多少？

【题目描述】小伟报名参加中央电视台的智力大冲浪节目本次挑战赛吸引了众多参赛者，主持人为了表彰大家的勇气，先奖励每个参赛者m元先不要太高兴！因为这些钱还不一定都是你的接下来主持人宣布了比赛规则 ... -= p.top(); p.pop(); } cout << m << endl; getchar(); getchar(); return 0; }...

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

0 votes

1.6k views

1 answer

pytorch - Problem with adding smiles on photos with convolutional autoencoder

I have a dataset with images and another dataset as it's description: There are a lot of pictures: people with and ... Thanks for any help. Added: checking the shape of pic_output:...

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

0 votes

1.7k views

1 answer

postgresql - Postgres is adding a space at the beginning and end of all fields

SLES 12 SP3 Postgres 10.8 I have duplicated a table to migrate data from a DB2 instance. The fields are all of type ... defined by 2 characters. Does anyone how I might fix this?...

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

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1.7k views

1 answer

el-transfer内容过长，鼠标悬浮显示完整内容

网上查了一个方法说可以这样写，但是我放到vue项目里就报错了，也试过了这样的写法， renderFunc(h, option) { return `<span title=${option.addr}>${option.addr}</span>` }, 不报错 ... ; }, 这个方法是可以显示的，也不报错，但是美中不足的是不该显示的内容都显示了 ...

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

0 votes

2.0k views

1 answer

ant-design-vue

大佬们想问一下ant-design-vue源码拉下来之后怎么启动运行源码已经拉下来了依赖已经安装好了但是 npm start的时候报错我以为是路径的问题，但是源码上面也没有这个文件怎么回事附链接 https://github.com/vueComponent/ant-design-vue 本人小白一枚望各位大佬解答...

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

0 votes

1.9k views

1 answer

javascript - unable to communicate between two applications loaded using iframes

I have one old angular js application. Currently I am developing each screen of this application in Angular 10 and ... anyone please suggest in what way we can achieve this....

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

0 votes

1.7k views

1 answer

:before和:after的absolute定位错误问题

我的想法是要选中时在选项的右上角有打钩，但是实际上是在父级的右上角，查了一下absolute确实是这个效果，这就让我也不知道怎么解决这个问题了 .van-col_active { border: 1px ... : scale(1.2, 0.8); color: #ffffff; } span { color: #0099ff!important; } }...

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

0 votes

2.3k views

1 answer

tampermonkey - Greasemonkey throws "DOMException: The operation is insecure." on document.implementation.createHTMLDocument().open()

FF 84.0.2, GM 4.10.0 The code can be seen at GitLab. The relevant part is: ... const doc = ... DOC CREATED DOMException: The operation is insecure. Script works with Tampermonkey....

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

0 votes

1.9k views

1 answer

Spring Data Elasticsearch 2.1.16: how to get the sorting distance?

When you try to sort by distance in ES, the result usually contains the distance between matches ... resultPage = elasticsearchTemplate.queryForPage(searchQuery, CircleES.class);...

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

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