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Python, Tensorflow ValueError: No gradients provided for any variable

I have a class called RL_Brain: class RL_Brain(): def __init__(self, n_features, n_action, memory_size=10, batch_size=32 ... ', 'decoder_output/kernel:0', 'decoder_output/bias:0']....

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

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390 views

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css完成高度的自适应

class Demo extends React.Component { state = { list: [] } handleAdd = () => { const { list } = this.state; this.setState({ list: [...list ... 部和底部，不同浏览器可能不同不希望通过js获取元素高度，css能否搞定？...

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

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972 views

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Macos: ping: sendto: Socket is not connected

Using ping on Macos [Big Sur 11.01], I'm getting this error message: ping: sendto: Socket is not connected What is likely to ... it? The call from bash is: ping -t2 -c1 time.com...

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

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641 views

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HID actividentity keychain token locked

I have a hardware actividentity keychain token. The pin was entered wrong many times continuously and the token is locked. ... ui. Is there any way to unlock the token....

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

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665 views

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node.js - I'm facing a heroku doployment problem, npm start not working

I need your help in some heroku stuff, I'm facing a problem, And my logs in heroku says: npm ERR! Failed at the blog@0 ... . Npm start fails, Any help please ? Thank you so much !!...

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

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902 views

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nacos占用cpu过高

nacos占用cpu过高，怎么判断是java代码问题，还是nacos问题...

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

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716 views

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element表格在系统字体调为125（中等字体）时，对不齐

表头与表格身体对不齐，试了下面的样式也不行 `.el-table th.gutter{ display: table-cell!important; }`...

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

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python - ValueError: The 'image' attribute has no file associated with it. when testing a model with a NULLABLE image field

I'm testing a model called Category that looks like this: class Category(models.Model): image = models.ImageField(upload_to= ... ='test_category', image=Null) But it didn't work....

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

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890 views

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java - Exclude JS (that itself calls urls) on WP pages

The following code makes several filter functions work on our website, and was written by a former dev. It triggers obnoxious ... on the pages we need it? Thanks for any clues!...

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

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699 views

1 answer

reactjs - Update child component when state in parent component changes

I have a parent component which has the Hierarchy component inside it. The parent component is rendered conditionally based on the ... ; }) } else { this.getHierarchyFromAPI(); } }...

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

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999 views

1 answer

DolphinDB创建内存表时报错：std::bad_alloc

在使用DolphinDB创建一个内存表时，执行如下代码： appendRows = 100000000 dateRange = 2010.01.01..2018.12.30 ints = rand(100,appendRows) symbols ... 06.400: executing code ... std::bad_alloc 请问是哪里出问题了？...

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

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seo - How do I direct all traffic or searches going to duplicate (or similar URLs) to one URL on our website?

I'll try to keep this as simple as possible, as i don't quite understand how to frame the question entirely ... be a simple explanation for this that i am completely missing?...

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

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1.3k views

1 answer

fabric 通道创建错误

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

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1.6k views

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Bind data to checkbox in angular material table using formcontrol. Data is available as list of true,false values

HTML <ng-container matColumnDef="view"> <mat-header-cell *matHeaderCellDef mat-sort-header>View</mat-header-cell> < ... table(view column) according to values of view list....

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

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1.3k views

1 answer

阿里云binlog。在我往表里新增字段后一直报错

canal.deployer-1.1.4阿里的版本监听了一张表，然后我在这张表新增字段，然后爆了下面的错请问是什么错改怎么解决呢 `2020- ... .AbstractEventParser$3.run(AbstractEventParser.java:258) at java.lang.Thread.run(Thread.java:748) `...

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

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2.5k views

1 answer

小程序wxml获取动态数据

在wxml页面中想要获取一个动态的变量，但是总是被解析成字符，例如{{ 'view_' + index}} 解析出来是view_1、view_2、view_3…… ，怎么样获取变量的值呢？尝试过{{ ['view_' + index] }} 但是一样不行，小程序里要怎么解决呢？...

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

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2.2k views

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如何将股票代码格式化成类似000001.SZ这种格式(后面的.SZ或.SH根据exchangecd判断)

...

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

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2.8k views

1 answer

jquery - WordPress - edit label in Comments section?

Is it possible to edit the 'Comment' label in the Comments section at all to some wording of my choice? Maybe with CSS? Many thanks,...

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

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3.6k views

1 answer

python - Scrapy returning "Last Modified" date error: "KeyError: 'last-modified'"/"ValueError: year 1610477971 is out of range"

I'm attempting to return the "last-modified" date for a set of URLs using Scrapy. However, I'm returning an error ... out of range". Any suggestions would be very helpful. Thanks!...

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

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3.5k views

1 answer

mysql - search in database table by multiple column that maybe not set

i have a database table with any column. and there is 3 form input in UI page, that a user can search a value in ... value only for 1 of column search will do by that 1 column....

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

1 answer

使用VSC开发nodejs项目如何在处理请求逻辑时调试

比如：在处理路由时打了断点开启debug模式也没有用，控制台也没有对应的打印输入，在chrome浏览器里使用devtools调试也有类似问题，在对应代码位置打断点也是没有用。哪位有经验的大佬能帮下忙。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

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此句sql,如何添加索引

主表中的where条件加了组合索引,但还是出现了:using temporary, using filesort 请教各位大神,如何优化谢谢！ EXPLAIN SELECT DISTINCT (store_id), c.id, ... ) AND store_id NOT IN ( 1, 2, ) ORDER BY id DESC LIMIT 1000...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

web scraping - Python Scrapy - parse URL content for most recent updated date

I have a webcrawler/scraper that's written in Python using the scrapy framework. I've been trying to use the ... for collecting the date each page was most recently updated?...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

automated tests - How to configure protractor so that it launches a 'regular' web browser?

I'm wanting to write some tests for a web app but the auth that's in place causes a redirect to Microsoft's ... but instead will keep cookies and other storage variables in place?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

PHP对象复制奇怪问题

PHP对象复制奇怪问题上代码 <?php class Container { public $data; public $index; public function __construct($data = null, $index = null) { ... ->tail->index = $node; 会自定把$node放到head的最后最内层?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

怎样把echarts图表做成响应式的？怎样监听实时更新呢？

我发现每次改变窗口大小的时候。echarts图表并不会实时刷新...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.9k views

1 answer

社交平台消息通知设置？求思路

社交产品中的消息推送设置 1.平台所有用户默认打开接受推送通知 2.如个别用户关闭某个消息设置，则不产生跟他相关的消息推送问：这块业务功能怎么实现，有sf小伙伴能提下实现思路的没？谢过 ^_^...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.3k views

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html - CSS defined edges with blur transition

I am making a large button with a blurred background image that unblurs when you hover over it. I have used a container with ... "></div> placeholder text </div> </body> </html>...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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