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411 views

1 answer

reactjs - How to clear textarea on click enter in React?

I have a chat component with a textarea that allows to send a message when the key "enter" is pressed ... document.removeEventListener("keydown", onPressEnter); }, [onPressEnter]);...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

556 views

1 answer

API是http协议的，从里面获取的内容在https页面上无法展示

我的页面里的图片是使用这个API获取的：http://gank.io/api/data/%E7%A...' 在本地浏览成功但是我把代码放到github上之后，打开这个页面却显示不了图片页面地址是https ... been blocked; the content must be served over HTTPS. 请问这个怎么解决？有大神遇到过吗？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

415 views

1 answer

functional programming - Scheme - function to count occurrences of atom in argument

I'm new to scheme and trying to learn functions. I want to create a function where I can count all occurrences of the atom "a" in an argument. ... (b c) (c (d a) a) (((a b))))) 5...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

273 views

1 answer

java - Does JCache support EJB Transaction on cache read/write?

Does JCache support EJB Transaction while cache read/write? I want to clear cache entries that added during a ... as cache provider and Redisson's JCache implementation as client....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

156 views

1 answer

python - Plotting a skewed distribution from mean, starting, and end value

I have a the following data: starting_point = 0.00000016 mean = 0.000351 end_point = 0.75 Is it correct to use ... plot a distribution to show the skewed distribution in python 3?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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193 views

1 answer

python - Is there any way to access SQL row data by the column name?

After I used fetchall(), I got this error: TypeError: tuple indices must be integers, not str very similar to this ... data by writing row["column_name"] instead of row[index]?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

支付宝如何自动转账到银行卡？

业务需要，网站需要直接转账到用户的银行卡，支付宝有这种接口吗？我只知道支付宝有个转账到支付宝的接口，不知道能不能转到银行卡。或者其他方法怎么做到自动给用户添加的银行卡转账呢？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

322 views

1 answer

Why is my program running an infinite loop? Python

I am trying to create a maze solver in python using the Breadth-first search. The algorith is supposed to replace the ... put + i if is_valid(maze, location): space.put(location)...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

401 views

1 answer

'uea60'在下面是什么意思？

使用httpclient设置Request的代码 RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(10000).setConnectionRequestTimeout(10000).setSocketTimeout('uea60').build();...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

596 views

1 answer

typescript - @testing-library/react-hooks 'act' function show me 'no floating promises' lint error

import { renderHook, act } from '@testing-library/react-hooks' import useRefWithSetter from '../useRefWithSetter' describe ... to explicitly mark as ignored with the void operator?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

485 views

1 answer

qaf - Getting error on executing POST request in Qmetry

With Qmetry framework, Trying to execute the below POST request (with xml content in body). Due to client confidentiality, I ... post method to run in qmetry? Please let me know....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

406 views

1 answer

android - Expo build crashed when using "enableDangerousExperimentalLeanBuilds"

I'm pretty much new to react native currently i'm developing a small app to get a better idea on this using expo. But when ... :5) at async main (/app/turtle/build/server.js:66:13)...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

194 views

1 answer

javascript - Node.JS, Express & MongoDB Multiple Collections Async Functions

I'm using Node.JS, Express, MongoDB and EJS. I have a question regarding multiple MongoDB collections under one database ... ); module.exports = mongoose.model('slip', Slipschema);...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

518 views

1 answer

给dom监听事件onclick无效，也不报错。

排错发现，用console.log()打印出来，鼠标移上去对应页面没有指示元素。（我打印另一个id为user的是正常的，可以看到页面有对应淡蓝色层，监听事件同样是正常的）我的问题是： 1，怎么解决dom监听事件无效？ 2，为什么console.log()打印，移入不能指明元素？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

178 views

1 answer

Android是否有官方的轮播图控件？

比如GooglePlay首页的的这个，可以自动轮播的窗口，这样的view叫什么？ hierarchy view可以看吗...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

236 views

1 answer

PHP如何添加预定义常量或变量

我希望自己定义一个常量或者变量，并且在任何地方使用，类似E_ALL或者$_SERVER...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

381 views

1 answer

typescript - How to get the local reference value from a template driven form tag dyanamically in angular?

Below is my template driven form. I want to get the local reference name (#{{obj.sample_name}}) in the *ngIf to show ... form reference here to show errors --> </div> </form>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

453 views

1 answer

微信小程序如何定位input标签并判断值

微信小程序如何定位input标签并判断值，类似getElentById 想实现判断值是否为空的功能。...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

140 views

1 answer

c# - time out when switching to a specific iframe

I am having trouble switching to a specific iframe. time out occurs when trying to switch to the first iframe in the ... input")).Click(); //set macro ffDriver.SwitchTo().DefaultC...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

318 views

1 answer

C,C++函数调用时入栈顺序是编译时还是运行时完成的？

我的理解是静态编译时，因为C语言是过程性语言只能静态联编不能动态联编，而C++编译于此类似，所以是编译时完全。不知道这样对不对？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

283 views

1 answer

python kivy isuues with pos_hint for image

I am trying to get a image to position itself at the bottom right hand corner of the screen with pos_hint but it always ... (self.build) This is a link to the how it looks...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

387 views

1 answer

如何用div语法在一个html里插入另外一段html(或者文件)代码并完整显示

这个是写出来的效果这个是原图html效果 <iframe src="test12.html" id="iframepage" name="iframepage" frameBorder=0 scrolling=no ... onLoad="iFrameHeight()" ></iframe> class: inverse, center, middle...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

166 views

1 answer

Android 的UP事件和最后一个MOVE事件所拿到的点是相同的

我现在看到手指触摸时UP事件和最后一个MOVE事件所拿到的点是相同的，也就是getX()和getY()的值是相同。这个是跟特定设备有关还是Android就是这么设计的？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

413 views

1 answer

用centos装的linux的，配置的IP是静态的，怎么就上不了网呢

在windows可以ping通这个IP，但是在linux上ping不通windows的IP，什么原因。配置静态的IP到底要根据什么来配置才不会产生冲突，还有DNS的配置是要和windows的DNS一样吗。...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

426 views

1 answer

请教virtualbox虚拟机桥接网络问题

本人在ubuntu系统中装了virtualbox，然后在virtualbox中装了一个系统也是ubuntu的虚拟机，网络连接方式选择了桥接，但是进入虚拟机之后无法连接上网络。我现在想要达到的效果就是能够使用主机通过ip访问到虚拟机，有大神有办法吗，请指教...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

298 views

1 answer

Ansible set_fact value of No converted into False

I'm having an annoying issue with set_fact,I set a var with value No but once I call the var ansible converts it to False is there a way around it?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

339 views

1 answer

java - Wildfly Maven Plugin: deploy WAR from different maven project

I have a project ("application"), divided into two subprojects ("web", "web-tests"). The frist is my main web ... the current project, but I want to deploy a different project....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

283 views

1 answer

oop - I wrote a java program but it seems to be an infinite loop

import java.util.Scanner; public class FirstJava { public static void main(String args[]) { final int NUMBER_OF_QUESTIONS = 5 ... user gets it right. Can someone help me with this?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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