Recent questions in Technique[技术]

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初学C++，有Java背景今天学到复制函数这边，突发奇想，如果类A被作为类B的构造函数的参数传递进去，然后又通过初始化列表进行赋值，那么类 A 的复制构造函数会被调用几次？我猜测可能会有两次，所以做个试 ... main() { Minu m; Clock clockA(m); return 0; } 代码语法检查没有问题，但是一运行，报错一大堆 ...

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

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android - How to change the Provider name in Huawei AppGallery?

I uploaded an app to Huawei AppGallery. In about section of the app there are two fields called Developer & Provider. I was ... it didn't work for me. Can anyone help me please?...

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

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azure - Using a JAR from a private Artifacts Feed in Data Factory Databricks task

My goal is to first publish JAR files of my Scala project to Azure DevOps Artifacts Feed and then use those ... "Append libraries" options under Data Factory's Databricks task:...

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

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c# - ObjectListView/TreeListView awful performance on Win10

I know the BrightIdeasSoftware/ObjectListView is a legacy project, but I have invested some time in it only to later ... it is not rendering TreeView lines and expanders at all....

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

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security - Is it possible to use Branch Target Identification when MMU is off?

Starting from ARMv8.5 architecture it supports Branch Target Identification (BTI) hardware mechanism to protect agains ROP/JOP hacker ... when MMU is off at all. Is this possible?...

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

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c++ - Use an array declared inside an if condition elsewhere

I declared an array depending upon a randomly generated number. Now i know we can't use an array generated inside an if block anywhere else but i ... 6]={'b','e','a','u','t','y'};...

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

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ios - Received Error in fetching the root view controller

I'm new to IOS Development. I tried to find out a root view controller using the below code : print("UIApplication.shared ... know how to solve this error?. Thank you in Advance....

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

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react-native 依赖库是什么时候添加到 PackageList 里的？

// MainApplication.java @Override protected List<ReactPackage> getPackages() { @SuppressWarnings("UnnecessaryLocalVariable") List<ReactPackage> ... 里，因为我要在 getPackages 里手动添加包...

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

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python - How to plot grid seach layout and random search layout

In Python I would like to create a plot like the one in the attached figure. Unfortunately I haven't found any code examples for this yet. Can someone help me, please?...

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

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python - Compare one by one a float number from a list to a column in a dictionary between a range

I'm trying to compare each number from a list to an set of elements in a column from a dictionary, if value from list ... ])) # print New list print (len(temp)) Thanks in advance...

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

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请问Angular-CLI能集成 babel-plugin-import吗？我发现ng-zorro没有按需加载组件以及样式的功能

我想把 babel-plugin-import (https://www.npmjs.com/package...，集成在我的 Angular 项目中，并应用于 ng-zorro-antd组件库。...

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

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python - Tfrecords parsing confusion

Here I try to get audio and label from raw_dataset(tfrec) feature_description = { 'recording_id': tf.io.FixedLenFeature([], tf. ... ].numpy())) it works How can I solve this issue...

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

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H5 IOS 原生中文输入键盘输入英文后直接点击完成获取不了input值

此时直接点击完成,vue双向绑定没有获取到姓名输入值求解!!!!!!!...

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

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使用Vue Element-UI进行表单验证如何获得表单整体的验证状态

有一个需求是在表单某个字段未通过时按钮变灰不可点击，随着验证通过变为可以点击，我在表单的validate事件中调用this.$refs['form'].validate()但是却报了[Maximum call stack ... { console.log(res); }).catch(err=>{~~~~ console.log(err) }); },...

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

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[role= =nav] > ul a:not([href^=mailto]) 详细解释一下：

那位大佬能解释一下这一个面试题 [role= =nav] > ul a:not([href^=mailto])...

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

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ios - SwiftUI remove array entries within ForEach subviews

I'm quite new to IOS development so please bear with me if I have used the code in a completely improper way. I use ... on how I could fix this? Any help is much appreciated :)...

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

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Errors when trying to install R packages from source (tidyverse)

I was trying to install tidyverse in R. Some packages gave me error messages so I tried to google and resolve ... : installation of package tidyverse' had non-zero exit status...

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

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python端口的订阅函数subscribe是否没有batchSize功能？如果想实现类似的功能，该如何写？

您好，在编写的过程中发现，在原始的subscribe订阅函数中有batchSize参数，尝试在python端好像没有，如果我想实现如原始函数那样在python端对更新数据进行批处理，即在到发布端更新数据的数量到一定的batchSize后再在python端进行处理，该如何实现呢？谢谢！...

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

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sql server - When do we use SET COLLECT_STATEMENT or COLLECT_OBJECT_NAME in an Ext. Event Trace?

I guess the title pretty much sums it up. I see these clauses used in examples all over the place, but I've ... if anyone can provide some insight I would be eternally grateful....

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

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javascript - Permalink autofill Checkbox

I would like to transfer the checkboxes from one form to another form. Form #1 Form#2. Form #1. <form ... ://jsfiddle.net/MatthiasRuf/mwq9dhxb/1/#&togetherjs=bqtPPFNtRq Thank you!...

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

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是什么东西占用内存java

如何找到jvm是什么东西占用内存 java启动参数非常简单java -Xmx512m -jar app.jar 在容器内执行top 看到java占用内存是2.7g 是啥东西占用了这么大的内存 ... 8.0_131-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)...

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

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vue 移动端如何实现页面跳转回填数据?(移动端) UI框架:vant

可以理解当前处于一个表单页面A A中有许多表单项,某个表单项B为van-cell 点击会路由跳转到它的二级页面,二级页面点击列表中的某一项会跳转到三级页面,以此类推,当点击到最里层的页面时点击确定数据会回填到A. A中有大概五六个 ... 法就是直接把数据托管到当前路由是有弹出框 pop来弹出组件诸君以为如何? 还请不吝赐教,在下来世必结草衔环以报...

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

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Win10 下使用 VMWare 安装 Ubutu 虚拟机

Win10 下不管是用VMWare 还是 VirtualBox来安装Ubutu虚拟机，都启动不了虚拟机，上图是VMWare下启动Ubutu 64位失败的提示，能不进入BIOS去解决吗？...

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

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python的三维空间点求距离问题，初学者百度不到答案现在手足无措了...

""" 声明一个类Point 描述三维空间的点属性：x y z 方法：distance() 描述当前的点到另一个点之间的直线距离定义两个Point的对象，并计算距离 ((x1-x2)2 +(y1-y2) ... 4 point1.z = 5 point2 = Point() point2.x = 5 point2.y = 12 point2.z = 13...

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

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DolphinDB GUI汉字乱码如何解决

我在DolphinDB GUI执行如下查询语句，汉字部分出现乱码：应该如何解决？...

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

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python - Date ticks and rotation in matplotlib

I am having an issue trying to get my date ticks rotated in matplotlib. A small sample program is below. If I try ... does not rotate the xticks #plt.xticks(rotation=70) plt.show()...

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

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java 爬虫发送请求

HttpGet httpGet = new HttpGet(url); httpGet.setHeader("User-Agent", "Mozilla/5.0(Windows NT 6.1;Win64; x64; rv:50.0) Gecko/20100101 Firefox/50. ... 这是不是太麻烦很多重合代码？因为一个网站可能很多url来回跳转...

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

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我想要修改viewer自带的工具栏按钮的图标？修改的代码写在哪个文件里？three.js?viewer3D.js?

上面的icon我想改变一下具体代码怎么写？写在哪个文件里？希望大神指导一下...

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

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