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856 views

1 answer

用css 生成一个多边形做图标？

通过 8位16进制数据如 7d3cb732 生成一个唯一固定的图标，来作为网址图标。现在方案只是固定颜色正方形，太单一，需要特别一点比如凸凹多边形。或者有什么好的方案？...

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

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1.5k views

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model view controller - Forms inside foreach loop MVC

I have situation where MVC controller has sent list of records. Those records are displayed in view in order ... Details",new { transferHeaderId = update.TransferHeaderId }); }...

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

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898 views

1 answer

sql - Column Unknown Firebird Python

I'm trying to make a GUI with python and tkinter for a firebird database. When I try to write the input from boxes into the ... (0, END) data.delete(0, END) status.delete(0, END)...

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

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862 views

1 answer

localVideo.html:1 Uncaught SyntaxError: Unexpected identifier？

es6模板字符串，想传递两个参数player,i，提示错误localVideo.html:1 Uncaught SyntaxError: Unexpected identifier？应该怎么改？其中player是一个对象 <span ondblclick="switchGroup ... {i})">${(i-1)*25+1}-${i*25}</span>...

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

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930 views

1 answer

go-fastdfs ./fileserver

go-fastdfs ./fileserver 启动时不时会挂要经常去启动他 linux 系统有没有什么办法让她一直启动或者是每个几分钟重启一次？脚本怎么写？我的 ./fileserver 是放在 cd /usr/local/goFastDFS 路径下的...

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

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884 views

1 answer

html自带的拍摄控件如何解决不高清问题

我买的高清仪设备需要做拍摄上传的功能，这个设备本身拍照是非常清楚的，但是通过html的控件拍摄就特别模糊，是控件本身的问题，还是我代码不规范？ navigator.mediaDevices .getUserMedia ... }) .catch(function(error) { return Toastr.error('抱歉，设备连接有误'); });...

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

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1.2k views

1 answer

winforms - vb.net determine Screen

Is it possible to determine the screen where a form is located? Not the position or the Size! I used Dim myScreens() As ... screen, I want to save that postion of that new screen!...

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

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1.3k views

1 answer

css3与css的区别

请问css3和css的具体区别是什么呀？...

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

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1.6k views

1 answer

node.js - Can we define the two different tasks independently without promises, callbacks or async/await?

Here I want to know the difference between the two code layouts execution? How will they execute or will the ... done to improve this? Is nested callbacks will get errors?...

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

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1.8k views

1 answer

vue脚手架 axios async await问题

我在文本编辑器用axios的async await单独写了一个多异步获取接口数据的代码，但是我用在脚手架上面就不好使了。但是不使用async await却可以不知道问题出在哪了，搜索引擎没搜到相关内容，大佬带带我...

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

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1.9k views

1 answer

java这门语言好不好学呢

java好不好学？...

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

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2.0k views

1 answer

c++ - Using part of a variable as bool

Let's say memory is precious, and I have a class with a uint32_t member variable ui and I know that the values ... to be disagreement about using inline ASM or some sort of shift....

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

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2.2k views

1 answer

Docker centos8编译安装mysql8.0报错，提示ABI check found difference

具体报错信息：有没有人遇到过这种情况，网上给的一些方法都是mysql5的解决方法，在线等。...

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

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2.3k views

1 answer

[CSS面试题] 如何使得左右两边没有确定宽度的元素保持其中文本的自适应

需要实际的代码, 而不是解题思路 : <div class="bg"> <div> <span>文案文案文案文案文案文案文案文案文案文案文案文案文案文案</span> </div> <div> <button>按钮按钮</button> </div> </div>...

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

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2.5k views

1 answer

微信公众号开发，使用微信测试号可以接收到用户发的消息，换成正式订阅号或者服务号发送就接收不到

微信公众号开发，使用微信测试号可以接收到用户发的消息，换成正式订阅号或者服务号发送就接收不到，是测试跟正式有什么区别么，求解...

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

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2.6k views

1 answer

javascript - How do I change 2 states properly in React?

I have 2 spans and state for them: const Sorter = () => { const [sorterTabs, setSorterTabs] = useState([ { ... the second span. How to do it properly in handleSorterClick function?...

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

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2.7k views

1 answer

requestImageDataAndOrientationForAsset 内存泄露崩溃

IOS 相册里图片很多比如2000多张内存飙升到1g多崩溃了 There are a lot of pictures in the IOS photo album. ... weakSelf dealImageWithIndex:index exactImage:result originImageData:imageData]; }]; } }];...

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

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3.7k views

1 answer

vehicle routing - Is there a package that can convert OpenDrive (XODR) Maps to Lanelet2 Maps that supports Traffic Signs?

I know there is a popular package (OpenDrive2lanelet) that can convert OpenDrive maps to lanelet2. https://opendrive2lanelet. ... let me know if there are any other resources....

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

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2.9k views

1 answer

microservices - Spring Cloud Eureka client doesn't start due to jersey

I couldn't start eureka client because from what i understood, it uses ... serviceregistry.EurekaRegistration$$EnhancerBySpringCGLIB$$35d361f.getEurekaClient(<generated>) ~[spr...

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

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2.9k views

1 answer

javascript - Dynamic nodes in TableLayout

I have a nodes diagram in table layout. In case I have some nodes in cell I got this table: Image: https://ibb. ... .make; const dia = $(go.Diagram,{ layout: $(TableLayout,...

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

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3.5k views

1 answer

react web应用在手机Chrome运行会卡死，应该如何优化？

正在用react 16 开发web应用，主要用手机浏览器访问目前遇到一个问题，在三星的某些机型中，如果通过Chrome访问，从页面移出组件的时候，页面会卡死但是如果把Chrome设定为桌面网站 ... ？ this.setState({display: false}); <div> { display ? <Popup/> : null } </div>...

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

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3.4k views

1 answer

mariadb - Context of MySQL wildcards

I am trying to get a better understanding of the context in which MySQL interprets wildcards, especially the _ underscore wildcard, which ... +-----+ 1 row in set (0.00 sec)...

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

0 votes

3.9k views

1 answer

c - Memory leak with valgrind, where can I free my pointer

in this portion I have a memory leak of 5 blocks which seems to match my loop turns so I tried adding free(newcw) ... don't know where can I free the cword structure pointer newcw...

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

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3.6k views

1 answer

sql 后期添加外键约束的时候，会检查已有数据是否满足外键约束吗

我现在使用 psql 创建了两个表 A 和 B 其中 B.name 受 A.name 约束（也就是说外键约束）但是导入数据的时候为了方便，我刚开始没有给 B 表添加外键约束那么现在如果我在 B 上添加外键约束，psql 会检查已有的数 ... 范的数据删掉了删掉之后我突然发现了这个问题由于 psql 添加外键的时候非常块，我猜测它并没有检查现有数据...

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

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4.5k views

1 answer

c# - System.Net.Sockets.SocketException: No such host is known

This is a .netcore 2.2 webapi, mongodb driver 2.11.5. It is trying to connect to MongoDb. I used to believe ... the timeout a red herring and there is actually another issue? Gina...

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

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3.8k views

1 answer

nginx Http如何重定向到https

server { listen 80 ; server_name www.abc.com www.abc.uk abc.com abc.uk; rewrite ^(.+) https://... permanent; } www.abc.com或abc ... 或abc.uk则重定向到https://www.abc.uk 求问rewrite后面该如何配置；...

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

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4.0k views

1 answer

Impala | KUDU Show PARTITION BY HASH. Where my row are?

I want to test CREATE TABLE with PARTITION BY HASH in KUDU This is my CREATE clause. CREATE TABLE customers ( state ... is any way to see if row distribution is workings properly?...

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

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2.2k views

1 answer

linux - What is postgresql select process?

we are using postgresql for our application. after a time, idle CPU was less than 20%. we understood select and ... understand what does mean select process. can anyone help we?...

asked Jan 23, 2021 in Technique[技术] by 深蓝 (71.8m points)

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