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java - Hibernate JPA填充瞬态或公式字段(Hibernate JPA Populating transient or formula field)

I have an optional column distance in entity class. (我在实体类中有一个可选的列distance )Its not always required ... them requires distance to be calculated ask by Prakash13 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - 如何在Ruby中编写switch语句(How to write a switch statement in Ruby)

如何在Ruby中编写switch语句？ ask by Readonly translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - 创建数据框的值对的列表（名称/值）(Create a list (names/values) of value pairs of a data frame)

I have this kind of data: (我有这种数据：) print(weights) RECAGE RECAGE_Q RECQ3 RECQ3_Q Q3A Q3A_Q Q5_1_REC Q5_1_REC_Q Q5_2_REC ... class = "data.frame") ask by Banjo translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - 在Bash中循环浏览文件内容(Looping through the content of a file in Bash)

How do I iterate through each line of a text file with Bash ? (如何使用Bash遍历文本文件的每一行？ ... RKEKNVQ VLAKHGKLQDAIN ILGFMK LEDVALQILL ask by Peter Mortensen translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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229 views

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java - 如何在Mac上安装Java 8(How to install Java 8 on Mac)

I want to do some programming with the latest JavaFX, which requires Java 8. I'm using IntelliJ 13 CE and Mac OS X 9 ... (我该如何解决这个问题？) ask by user3763100 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - 无法完成安装，因为找不到一个或多个必需项。蚀靛蓝(cannot complete the install because one or more required items could not be found. eclipse indigo)

I was installing adb and found an error like this. (我正在安装adb，发现这样的错误 ) Cannot complete the install because one or more required ... .. (有人请帮忙..) ask by Salu V S translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - 如何在C ++中使用PI常量(How to use the PI constant in C++)

I want to use the PI constant and trigonometric functions in some C++ program. (我想在一些C ++程序中使用PI常量和三角函数 )I get the ... (如何在不手动定义PI的情况下获取PI？) ask by Etan translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - 加载本地文件时出现“仅HTTP支持跨源请求。”错误(“Cross origin requests are only supported for HTTP.” error when loading a local file)

I'm trying to load a 3D model into Three.js with JSONLoader , and that 3D model is in the same directory as the entire website. ... 因导致的，也不知道如何解决 ) ask by corazza translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - <快于<=吗？(Is < faster than <=?)

I'm reading a book where the author says that if( a < 901 ) is faster than if( a <= 900 ) . (我正在读一本书，作者说if( a ... 生成的机器代码有关，以防万一 ) ask by Vinícius Magalh?es Horta translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql-server - 如何清除SQL Server事务日志？(How do you clear the SQL Server transaction log?)

I'm not a SQL expert, and I'm reminded of the fact every time I need to do something beyond the basics. (我不是SQL专家 ... log? (如何清除交易日志？) ask by Kilhoffer translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - 单击手机网页中的链接时如何触发电话(How to trigger a phone call when clicking a link in a web page on mobile phone)

I need to build a web page for mobile devices. (我需要为移动设备构建一个网页 )There's only one thing I still haven't figured out: ... ...对大多数移动设备也是如此 ) ask by Frederic Morin translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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912 views

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webserver - 应用程序服务器和Web服务器之间有什么区别？(What is the difference between application server and web server?)

应用程序服务器和Web服务器之间有什么区别？ ask by TwiggedToday translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - 什么是Ruby中的attr_accessor？(What is attr_accessor in Ruby?)

I am having a hard time understanding attr_accessor in Ruby. (我很难理解Ruby中的attr_accessor 。)Can someone explain this to me? (谁可以给我解释一下这个？) ask by dennismonsewicz translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - 如何从JavaScript对象中删除属性？(How do I remove a property from a JavaScript object?)

Say I create an object as follows: (说我创建一个对象，如下所示：) var myObject = { "ircEvent": "PRIVMSG", "method": "newURI ... "PRIVMSG", "method": "newURI" }; ask by johnstok translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - 有关方法覆盖的问题(Issue regarding Method Overriding)

I have confusion regarding Method Overriding in java. (我对Java中的方法重写感到困惑 ) From it's definition it says : (从定义上说：) In ... it's purpose? (目的是什么？) ask by Jaimin Modi translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - 用Java对数组排序(Sort an array in Java)

I'm trying to make a program that consists of an array of 10 integers which all has a random value, so far so good. (我正在尝试制 ... ]+" " + array[9] ); } ask by Lukas translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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image-processing - 我怎样才能找到带有Mathematica的Waldo？(How do I find Waldo with Mathematica?)

This was bugging me over the weekend: What is a good way to solve those Where's Waldo? (周末这让我很烦恼：什么是解决那些 ... cash register): (（Waldo是收银台）：) ask by Arnoud Buzing translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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git - 如何正确强制执行Git推送？(How do I properly force a Git push?)

I've set up a remote non-bare "main" repo and cloned it to my computer. (我已经建立了一个远程的非裸露的主仓库，并将其克隆到我的计算机上 ... How can I fix this issue? (如何解决此问题？) ask by Spyros translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - Ionic表示无法绑定到“ formGroup”，因为它不是“ form”的已知属性(Ionic says Can't bind to 'formGroup' since it isn't a known property of 'form')

I have a product-details page, in which I am using another child component product-card. (我有一个产品详细信息页面，其中使用了另一个子组件产品卡 ... 离子版本为4，角度版本为8 谢谢 ) ask by Aditya Thakur translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

php - 如何使用字符串变量访问对象的子级？(How to access children of an object using a string variable?)

I have a function where I want to work with an object. (我有一个要在其中使用对象的函数 )I would like to specify a child of that ... 789 ) ) Thank you! (谢谢！) ask by Josef Habr translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

xml - 避免在缺少“匹配”实体的情况下输出属性(Avoid output an attribute in case of the missing “matching” entity)

After XSLT execution i have a picture like (some attributes with empty values) (XSLT执行后，我有一张类似的图片（某些属性值为空）) <Document ... .0)? (如何改进XSLT代码（1.0）？) ask by Alex translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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535 views

1 answer

php - cURL错误（58）：无法设置私钥文件：'/var/www/work/xml/keys/client.pem'类型PEM(cURL Error (58): unable to set private key file: '/var/www/work/xml/keys/client.pem' type PEM)

I am getting this error, while connecting to a server using private and public keys. (使用私钥和公钥连接到服务器时，出现此错误 ... ($data); } curl_close($ch); ask by Gajendra Bang translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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506 views

1 answer

php - MVC：这是初始化和调用MVC层的正确顺序吗(MVC : Is this the correct sequence to initialize & invoke MVC layers)

I am trying to learn php MVC based webpage development.At first i literally thougt that it's just decoupling the ... 确实遵循MVC模式 ) ask by user5005768Himadree translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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199 views

1 answer

apache - 如何为Apache 2.2启用mod_rewrite(How to enable mod_rewrite for Apache 2.2)

I've got fresh install of Apache 2.2 on my Vista machine, everything works fine, except mod rewrite. (我已经在我的Vista机器上安装了新的 ... 藏的东西，可以阻止mod重写？) ask by Jakub Arnold translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

1 answer

image - 使用AWS Amplify从React Native上传到S3(Upload to S3 from React Native with AWS Amplify)

I'm trying to upload an image to S3 from React Native using Amplify. (我正在尝试使用Amplify将图像从React Native上传到S3 ... : Unsupported body payload number] ask by Amir Yunas translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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405 views

1 answer

jquery - 通过单击子类获取类的父ID(get parent id of a class from a click of the child class)

I have four <div> container as shown below: (我有四个<div>容器，如下所示：) <div class="parentBox"> <div class="childBox" id ... sontent</div> </div> </div> ask by Steve8428 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

1 answer

javascript - jQuery获取特定的选项标签文本(jQuery get specific option tag text)

All right, say I have this: (好吧，说我有这个：) <select id='list'> <option value='1'>Option A</option> <option value=' ... not working. (但这是行不通的 ) ask by Paolo Bergantino translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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435 views

1 answer

python - Python获取上个月和一年(Python get last month and year)

I am trying to get last month and current year in the format: July 2016. (我正在尝试以2016年7月的格式获取上个月和本年度 ) I ... datetime.now() print now.year, now.month(-1) ask by translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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