Recent questions in Technique[技术]

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javascript - Which is a more efficient way to use the If Condition?

I am using the IF condition inside a for loop. I have two way to do that : 1. I can use IF-Continue for(let i=0;i<10 ... if(i%2==0) { //doing some stuff continue } console.log(i) }...

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

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php中这个mysql语句的语法怎么处理？

php中这个mysql语句的语法怎么处理？如下图所示，问题在红框中：问题：红框中那一串字符有$符号，会被认为是php变量，应该怎么处理？加转义符？...

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

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298 views

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Gitlab job to run ONLY ONCE when Merge Request is created

I want some specific jobs in my pipeline run only one time when I create a Merge Request. For example to assign ... QA environment. Is there a way to achieve this in Gitlab?...

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

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关于Android AOP方面的学习教程或者开源框架？

1.请教关于Android AOP方面，有那些需要的知识准备？ 2.关于ASM技术和Android有什么可以结合的领域？ 3.有哪些比较好的这方面的开源项目？ 4.AOP一般究竟是如何实现的？在Android这边的具体实现？...

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

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点击同一个按钮，第一次点击显示下拉框，第二次点击隐藏下拉框，这个功能怎么实现呢？

点击同一个按钮，第一次点击显示下拉框，第二次点击隐藏下拉框，这个功能怎么实现呢？我想的是设置一个flag，每次点击之后，此flag都被改为true或false来实现，不知道是否合理？大家还有更好的办法吗？...

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

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888 views

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elixir - getting permission denied error when trying to run mix release

I followed this tutorial and created a build with few modifications. After generating a build with dockerfile, when ... good solution to change permission after build is generated?...

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

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element-ui 中carousel 走马灯组件后台传值不显示

ele的carousel 走马灯组件为什么我写死数据，能正常显示但是我后台传值之后就不显示了...

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

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上百（有限张）图片，需要在NodeJS中使用，如何最有效的利用内存

需求场景(后端生成图片)：应用在几百张图片中随机选取一张图片作为模板，在图片上绘制一些文字，并生成一张图片，传入CDN中，返回用户CDN的图片地址方案1：一股脑全部加载到内存优点：不用判断缓存，速度也最快缺点：应用 ... 点：写不好，容易内存泄露，读文件导致速度变慢目前采用了方案1，使用了node-canvas 各位有没有更好的建议，或者方案？...

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

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javascript - Cloudflare Workers - SSE

Is there a way to do server-side-events with cloudflare workers? I've only found one way but it'll stop right after ... `)); }, 5000); return new Response(readable, response);...

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

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1.3k views

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php - Can't access css files in my public folder - laravel 6.2

I know this question has been asked many times but unfortunately i can't seem to get this working. I have my ... %{REQUEST_FILENAME} !-f RewriteRule ^ server.php </IfModule>...

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

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612 views

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Copy rows range from Sheet1 to Sheet2 in excel VBA

My excel data is feeding from other real time application source. My requirement is I want to copy range A1:M20 ... not overwritten). Someone help me to do in excel VBA/...

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

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467 views

1 answer

spring security用ajax提交登录页面的校验问题

之前是用自定义的spring security的表单提交过滤方法来做的，就像这样： <custom-filter position="FORM_LOGIN_FILTER" ref="loginFilter"/> 这种应该是表单提交才能有效吧？现在用ajax提交发现不起作用了，不知道spring security针对ajax提交有什么校验方法可以用的？...

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

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python - Data augmentation with ImageDataGenerator for videos (4D tensors) in Keras

I have an ImageDataGenerator in Keras that I would like to apply during training to every frame in short video ... a dataset of 4D numpy arrays representing sequences of images?...

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

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使用three.js添加阴影为什么设置了阴影相关设置后平面和立方体都消失了

设置了spotLight.castShadow = true;之后所有东西都消失了，而且设置的spotLight.shadowCameraVisible = true;也没有效果 function init(){ $(" ... car.add(cube); scene.add(car); renderer.render(scene,camera) }...

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

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label文字居中

label文字居中 .Botton { background-color: white; margin-left: 0.63rem; border-radius: 0.36rem; font-size: 1.6rem; height:2rem; width:1 ... ="Botton">1</label> 没有居中是什么原因，不想通过设置padding...

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

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139 views

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javascript karma功能

有这样一个业务场景；测试人员对着页面表单进行操作，表单内容在提交前要对表单数据和业务逻辑进行校验，可能不同的输入导致返回的结果不对（就是出现bug）; 这时我们问测试人员怎样操作的，然后根据测试人员操作而生成的表单数据去建造相应的单元 ... 而生成的表单数据去建造相应的单元测试，这个步骤能自动化完成吗？就是有没有有人做过相应的插件？或者有没有更好的流程？...

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

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396 views

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mongoDB启动问题

Mongo启动后出现以下故障数据库无法正常使用 2017-03-01T01:27:47.123-0500 I NETWORK [thread1] waiting for connections on port 27017 2017-03-01T01:28:08 ... now open) 不知道哪里出现了问题，网上没有搜到类似的问题，请指教...

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

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epoll模型ET模式非阻塞

网上资料说ET模式下，只会通知一次，不会再次通知事件，所以必须等数据全部写入或者全部读取才能再次调用epoll_wait。但是为什么要用非阻塞socket，阻塞socket不是也能通过while循环来将数据全部写入或者全部读取吗？...

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

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redis数据迁移问题

现有redis服务器两台,A服务包含了很多数据,数据量20G,如何快速的把A中的某一规则的key(假设有1000W个)的数据迁移到B中...

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

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428 views

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typecho非80端口安装地址获取错误

本地使用8080端口的WAMP安装typecho,安装后链接的URL地址都被设置了localhost:8080:8080,导致无法正常访问；设置的网站地址：安装后生成的连接错误：各位有碰到过类似情况的，麻烦提供下经验。...

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

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reactjs - Hook re-render whole page on single change in a sub component

I create 2 Text Boxes one with hook and the another one with the old style, now in Hook mode when the ... is very very complicated to handle single object property. SandBox Example...

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

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php page won't recognize a function included in another file

I'm trying to set a variable to a function that selects a table from a database. It has worked all the other times I have been ... pre>", print_r($value, true), "</pre>"; die(); }...

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

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既然函数也是引用类型，为什么原型继承无法改变

如题，下面代码里数组可以改变，但是函数却无法改变： var human = { say:function(){ console.log("我是人类"); }, arr:[1,2,5,4] } human.say(); ... 还是"我是人类" console.log(anotherPeople.arr); //数组arr =[1,2,5,4,'hello']...

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

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176 views

1 answer

html - changing the style of a component which is being used by its selctor

I am using a component with its selector in another component, like this: <div class="col-xl-4" style="margin-bottom: ... I literally have no idea how to do it! any suggestion?...

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

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使用匿名类实例化了一个抽象类之后，如何重写其中的抽象方法并调用？

public abstract class Rhythm { /** * @return duration between {@linkplain Note} in milliseconds */ public abstract long getDuration(); public void ... ()方法，有什么办法么？在不引入子类继承的前提下 ...

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

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java - Why is stage ignoring the new defined positions when restoring window?

I'm doing some tests with jfx gui framework, so i needed to make my own custom window. In meantime, i managed to find ... , but nothing works and it's stuck in upper right side......

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

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466 views

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为什么小程序官方demo的nodejs版后台，没有引入https

这里只看到了require了http,但是因为小程序是要用https的,看来好多其他的示例代码也到看不到https,不知道是否和nginx有关,如果是，需要在nginx如何配置使之关联。我的nginx已经可以做到https://www.mywebsite.com访问index页面了，请问下一步应该如何关联，请教大神。...

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

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418 views

1 answer

Customize the error message of kendo upload with angular

I want to customize the error message displayed automatically by kendo upload when I upload a file which exceeds the maximum ... large" appear ! How can I change this message ?...

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

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