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java - Display a nested list with Primefaces dataTable

I have a problem to display a string as a header of an row and a list of strings, which are the propertys of the header. ... value="#{value}" /> </p:columns> </p:dataTable>...

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

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reactjs - Application does not have sufficient permissions against this web resource to perform the operation in Azure AD B2C

I have created Azure AD B2C Application and tried to integrate with React JS using MSAL Library , When i ... resource to perform the operation Any Help would highly appreciated....

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

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flutter - Is there a way to get the previous version of an app or know if it has been updated or downloaded?

I was trying to build a feature announcement where I can tell the users that there is a new feature available on my ... were installed or if the app was updated vs just downloaded?...

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

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c# - Run one process at a time for a critical section

I had previously implemented it in this way. using (var mutex = new Mutex(true, "MyMutex")) { try { // critical ... } finally { semaphoreSlim.Release(); } } What do you recommend?...

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

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vb6 - Altering togglebutton state based on other togglebutton state

I have tried to no avail to get a toggle button to return to its FALSE state when an adjacent toggle button is ... .Visible = True Submittrailer.Visible = True End If End Sub...

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

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iOS 上传资源出错 Error Domain=qiniu.com Code=-5 "(null)"

iOS调用这个方法 - (void)putData:(NSData *)data key:(NSString *)key token:(NSString *)token complete:(QNUpCompletionHandler) ... Code=-5 "(null)" UserInfo={error=get zone failed}...

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

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c - How to declare an array in another array without define the size

I want to define an array without size and it contains an array without siez as well. Here after the function ... obj= Device___EP is it possible to avoid these warnings !...

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

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397 views

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How can I skip the cart and go straight to checkout in the Shopify store?

I need to add "Buy now" button on product collection page and with the help of this button product is directly added in to the cart. Can any one help me with this??...

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

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c - Configure gdb in order to debug floating point calculations

What I am doing: I am writing a program in C that makes extern calls to assembly programs. I use SSE ... suggestions about how to configure the gdb for tracking these calculations?...

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

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百度地图可以描绘道路的路线吗？

如图：我输入一条道路，然后像描公交路线一样的把这条道路给描出来。我看了百度地图api,好像没有这样的借口，有没有大神做个这样的需求的？给点建议或者资料什么的。谢谢！就像这样！...

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

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request请求中如何判断是否有参数传递？

因为需要拦截请求做日志，所以把request的流读出来了，这样的话getparameter无法使用，用读流的方式去自己封装getparameter方法，但是没法准确判断是否有参数。用&和=符号都会有问题，如果流数据中带有=符号的话，请教如何能解决这个问题...

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

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angular怎么把商品添加到购物车

...

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

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650 views

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大家有没有基于vue2.0的table插件，类似extjs 的grid

类似这样的功能的vue table插件...

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

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519 views

1 answer

java代码如下，输出结果中为什么s对象？

Collection c2 =new ArrayList(); Student s= new Student(); c2.add(s); c2.add("我"); Iterator it = c2.iterator(); while (it. ... System.out.println(object); } 输出结果为我，并没有s对象啊？...

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

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__name__= __main__怎么解释怎么用另外两个py文件之间的互动关联

name = '__main__' 的作用有句话经典的概括了这段代码的意义： Make a script both importable and executable 意思就是说让你写的脚本模块既可以导入到别的模块中用，另外该模块 ... 那import是干嘛用呢，就引入了一个func()？name == "__main__" 是什么意思起什么作用...

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

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873 views

1 answer

copy - Clean up multiple file names in Linux

I have several fully loaded USB drives that I want to copy onto a new USB Terabyte drive. Using a simple copy ... hoping there may be some way to minimize the manual corrections....

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

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288 views

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html - How to find the right node in Rselenium to press load more buttom on dynamic webpage

I want to click the [more recipes](in german: [mehr Rezepte]) Button via Rselenium on the following webpage: https:/ ... button clicked via Rselenium? Thank you a lot and BR David...

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

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node.js用net模块接收TCP数据，怎么防止粘包？

目前用的ExBuffer，感觉不是很给力，上代码：（首先是我的部分，接收tcp数据，100ms一次，每次的数据4027字节，但是一粘包就接收不到了，log出来8054的字节） ps：tcp数据有包头和包尾，基本没用上 nodeServer.on('data', ... ****************/ 我就是想问问有没有更好的解决方案呢？针对接收这种数据...

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

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259 views

1 answer

react-router和node的router有什么区别？

最近在学习node,express。其实在之前就一直对这个问题有点疑惑，既然react已经有router了，那么为什么我们还需要用express的router呢？这两个路由到底有什么不同...

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

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212 views

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python - How to set Configuration ( change name of slave data's node when start-all.sh)w?

how to change name of slave data's node when start-all.sh hadoop@slave1 -> hadoop-data1@slave1 hadoop@slave2 -> hadoop-data2@slave2 ... ,2,3) where should i change config file in ?...

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

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css - How to change line after navbar-text

Here is my code : <nav class="navbar navbar-expand-sm navbar-dark "> <div class="container-fluid"> <a class="navbar ... :block but it is not working. Any help will be appreciated !...

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

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How to get accuracy of Generative adversarial Network?

I want to know how can I measure the accuracy of GENERATIVE ADVERSARIAL NETWORKS.Specially Conditional GAN....

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

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302 views

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scrapy怎么实现重复或者定时采集

重复采集怎么实现，例如每隔 20分钟定时采集怎么实现例如每天的6点采集...

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

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python - How to kill a thread in thread pool?

How to kill a thread in ThreadPoolExecutor after a submitted task is finished? with ThreadPoolExecutor(max_workers=20) as executor: ... After submitting a task, I want to kill it....

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

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有没有快捷的修改CSS单位？

只有一个css文件。一开始用的rem。现在想全部改成px。并且。 rem 乘以10 比如 0.9rem 要转成 9px...

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

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为何箭头标着的正则无效？

这里要实现的是class 的增和删。比如<div class="one two"> </div> 然后我要删掉two这个类名。...

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

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如何将组件添加到html里？

html代码 <div id="app"> <ul id="test"> </ul> </div> <button type="button">添加li标签</button> <template id="tem"> <li>列表项</li> </ ... 怎样通过js代码，点击button按钮后把<to-do></to-do>添加到<ul></ul>里 ...

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

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JAVA找不到主类

使用 java 找不到主类提示信息: 错误: 找不到或无法加载主类 cn.xxx.cofood.user.main.Server "C:Program FilesJavajdk1.8.0_121injava" - ... 已经加入了 classpath 而且该类的 package 为 cn.xxx.cofood.user.main.Server...

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

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