Recent questions in Technique[技术]

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安装python api时报错ModuleNotFoundError: No module named '_ctypes'

我升级python 3.7后，然后安装DolphinDB database的python?api时出现ModuleNotFoundError: No module named '_ctypes'。如下图所示：有什么解决办法吗？...

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

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vue data赋值问题

例如：我定义了3个变量分别是：data1,data2,data3 然后在一个函数中想根据参数来确定为其中的一个赋值，例如：当参数值为1，为data1赋值；参数为2，为data2赋值... 这种，因为可能会有很多种赋值方案，属于我想用下面 ... ?{????this.data+param?=?...??//知道这样是不行的，但是想找一种能达到这种效果的方法}...

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

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import - Importing 300 Excel Files at once (Stata)

I am trying to automate the importing process of 300 Excel files into Stata. The files represent a time of 25 years, ... D, etc... rather than the actual variable names above....

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

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用flutter有做过红外线遥控器和调用远程监控吗？有思路或者插件提供一下吗？

用flutter有做过红外线遥控器和调用远程监控吗？有思路或者插件提供一下吗？求助...

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

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shell - How to use sed to get matched pattern and replace another line text

I want use sed to replace a pattern. Go through each row Get each title, left of ":" (Line1) save ... Line1: content_A Line2: content_B Line3: content_A Line4: nonsense & content_B...

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

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遇到一个很奇怪的bug

这两种写法不一样吗？问题描述：新增：父组件在这里调用子组件，去新增数据组组件填写完成后将数据发送回父组件父组件接收数据，然后提交至服务器全部都是新增数据的时候进行提交是没有问题的问题在于，对数据进 ... ，然后父组件提交数据，出现的是没有修改的数据的task_level异常了我的level一直都是以index计算的所以就想不通为什么会这样...

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

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页面阻止了点击事件，怎么恢复？

document.body.addEventListener('click',(e) => { e.preventDefault() }) 这样阻止了页面的点击事件，想恢复，不能用removeEventListener，还有什么办法？...

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

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What is BigQuery ML Evaluation based on when DATA_SPLIT_METHOD = 'NO_SPLIT'

Context: creating (training) a model in BigQuery ML (logistic regression, to be more precise). Problem: A default value ... else it could be. Thanks in advance for any suggestions!...

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

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antd Input 不能用setState了为什么??

onchangeGoodR=(e)=>{ console.log(e.target.value) this.setState({ GoodRValue : e.target.value }) } <Input style={{flex:"1",marginLeft:"5px",} ... 以输入同一个页面的Input就是这样子写的为什么这里就不能用了呢??...

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

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routes - How to organize an app portal with Flask?

I am working on an apps portal for a group of users. Users will connect to the portal on the 'root' url '/' (a first ... lost while I have my apps ready ... Thanks for your help....

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

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automatic date picking selenium

I am working on automating some web related task. For that I am using selenium. However, After trying hours I could ... : I decided to click month and year button using xPath....

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

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java - If my app target sdk ver is 30 how can it works in phone with lower sdk

when I try to run it in lower it shows these errors. so ... .os.DeviceIdentifiersPolicyService$DeviceIdentifiersPolicy.getSerialForPackage(DeviceIdentifiersPolicyService.java:67)...

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

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Scrapy-redis 传入初始url后，监听中的爬虫未启动，求解

问题描述写了一个分布式爬虫，使用虚拟机进行模拟的时候，redis服务器已经启动，并且设置好了可远程连接，爬虫服务器启动后进入监听状态，然后传入redis-key起始url后，爬虫却为开始 ... \_PERSIST?=?True #?设置连接redis信息 REDIS\_HOST?=?'192.168.0.102' REDIS\_PORT?=?6379...

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

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My Strava App not listed in the list of Apps even after authorization

This is my Authentication URL https://www.strava.com/oauth/authorize?client_id=59283&response_type=code&redirect_uri=http://www. ... application in their list of Apps. Any reason ?...

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

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js获取到dom元素后如何修改dom的子元素样式？

比如 <div class="a"> <div class="b"></div> <div class="c"></div> </div> 我通过js获取到classa的dom元素了，然后我想修改classc的样式该怎么写？...

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

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selenium - How can i get my python script start look like this

Hello so i wrote my own ?Sneaker Auto-Cop script with Python Selenium Chrome Driver. Now i want to know how to get ... stopped on the right site of the line Picture 1 Picture 2...

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

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java - Signed S3 Link Updload Via RestTemplate Adds Unwanted Headers To File

I want to be able to upload a txt file from java to a serice via a returend s3 link. I am currently able to ... Any ideas on why the uploaded txt file is not just hello world?...

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

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Add Multiple shortcut key in Accelerator for single menu item in electron js

There is menu in electron with three items View,Delete,Copy. for delete I want use three shortcut keys (Delete , ... focusedWindow) => _menuClick(focusedWindow, 'undo')}, ] },...

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

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vue 中能返回来一个 html的代码段吗

类似这样的，就是想返回来一个代码片段，如果不这样写，或者其他的方式写也行...

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

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vue视图未及时更新

<div style="width:130px;height:40px;line-height:40px;"> <button style="border:none;background:none;height:40px;vertical-align: middle;font-weight:600 ... 能及时更新视图，只修改了数组里面的数据，向大佬请教？...

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

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.net - How do you simulate Mouse Click in C#?

How do you simulate Mouse clicks in C# winforms applications?...

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

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点击按钮直接从JS弹窗

如图所示点击按钮直接弹窗一个下载框。用的是JS弹窗，弹窗的信息都写在JS里面，并不是隐藏DIV，这个功能如何实现呢？从他们网站下载的JS...

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

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How can I save the standard Yum output to a variable from the Python Yum API?

For example: >>> import yum >>> y = yum.YumBase() >>> x = {'release': '11.el7', 'epoch': '', 'version': ... . Is there a clean way to assign the standard yum message to a variable?...

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

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Put first paragraph as filename in a WORD MACRO VBA

I am looking for a way to add the first paragraph (users name) as the Filename.pdf in a Word VBA macro. I have a ... paragraph of every page I am saving to pdf. Hope you can help!...

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

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1.1k views

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reactjs - how to set A5 page size in react-to-print

I usually use react-to-print for printing react components with a low effort and great flexibility. I want to set page ... to-print'; kindly guide me how to do page size setting...

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

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817 views

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vant的list组件，用于定位实现的瀑布流的时候，会一直触发加载，直到全部结束，怎么办？

vant给出了float的解决方案，我想知道有人遇到定位瀑布流的一直加载的问题吗？求教大佬...

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

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578 views

1 answer

swoole_tracker + hyperf检测内存泄露

大家好，这是我用swoole_tracker检测接口使用情况，这里的泄露是库文件导致的，我个人觉得这个是因为这些文件常驻内存的原因，但不是很确定。请问这个是正常现象吗？...

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

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385 views

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spring seesion用redis缓存Reditemplate取值为null

在Spring seesion中，使用由redis缓存保存的实体类从Reditemplate取的值是null 但是可以通过stringredistemplate取出内容如果用Stringredistemplate.Opsforhash().get( ... 或者怎么使用Reditemplate.Opsforhash().get(K,V)获取到对应的内容...

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

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