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340 views

1 answer

如下图，form的前两个input无法校验反复试了总是只有前两个无法验证，因此验证rules应该没问题哪位帮我看看是我form结构有问题吗？ <el-form :model="formSignup" ref="signup ... { callback(new Error("两次输入的密码不一致！")) } else { callback() } }...

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

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311 views

1 answer

vue的seo问题

目前正在用vue开发一个房屋中介那种房产官网，类似链家那种，这种使用单页面应用呢还是多页面，因为说单页面做官网不利于seo，如果使用多页面，直接把router-link改为a href就行吗，求解用什么好...

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

0 votes

486 views

1 answer

nuxt 里定义的meta等元数据中文变成了乱码？

我在nuxt.config.js里定义的meta数据，运行起来中文变成了乱码不管打包还是生产环境meta里的中文都是乱码的，求解！！...

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

0 votes

236 views

1 answer

el-date-picker的css修改

现在使用日期选择框，只想要下面的日不想要上面的年月怎么做在火狐的css调试上加一个display：none就可以了，但是在代码中用穿透和伪元素都无法实现 .myDatePicker>>>. ... } .myDatePicker>>>.el-date-picker__header { display: none !important; } 这应该再怎么修改...

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

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243 views

1 answer

Create a table from one line CSV data on SAS

I try to import data from a csv with only one line data formatted like this : ... @@; run; Thank you for your help....

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

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539 views

1 answer

正则表达式验证体重支持小数点输入前三位小数点后两位（例：100.23）

正则表达式验证体重支持小数点输入前三位小数点后两位（例：100.23）...

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

0 votes

490 views

1 answer

js判断是否出现省略号

{ overflow:hidden; white-space:nowrap; text-overflow: ellipsis; } 使用css将文本超出显示省略号... 图1: 图2: 使用哦scrollWidth可以判断的出来宽来判断的出布尔值但是图1图 ... 使用js来判断文字length截取,体验不好实际上dom上的文本也是抓取不到... 省略号...

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

0 votes

476 views

1 answer

python 3.x - How to make Pandas dataframe run on multiple cores?

I have around 5 million rows being processed in pandas dataframe & its taking about 45 minutes.There are multiple ... all available nodes & reduce the total transformation time ?...

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

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464 views

1 answer

请问大佬用elementui的tabel组件能实现这样的功能吗

就像图中在表格的每一列顶部增加一块自定义的区域，大佬们elementui的话有没有什么好的解决方案呀？...

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

0 votes

653 views

1 answer

Visual Studio Code keyboard shortcut quickly make column from row

I've seen people in Visual Studio Code use a keyboard shortcut to convert a string like to a column like . I will be very grateful if someone tells me how to do this....

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

0 votes

462 views

1 answer

javascript - hidden attribute ignored on Button component

I'm trying to hide a Material-UI Button component by adding the hidden attribute, but it appears the attribute is ignored. ... Doesn't work. This Button is still there! </Button >...

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

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479 views

1 answer

javascript - Passing data via React Router

So I have a problem with passing data from one Component to another. So I have Free To Play Component which has ... , setSearchValue}}> {children} </SearchContext.Provider> ); }...

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

0 votes

626 views

1 answer

js中，xhr的onreadystatechange回调属于宏任务还是微任务？

js中，xhr的onreadystatechange回调属于宏任务还是微任务？...

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

0 votes

592 views

1 answer

在分区表中使用移动函数context by添加新列报错

我有一张分区表（不是分布式表），以date，ticker分区（date是第一分区），保存股票的收盘价： date ticker close 2010.01.04 600151.SH 11.63 2010.01.04 600723.SH ... .8)"]).execute() 请问python api中使用update是否一定也是通过update实现的？...

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

0 votes

850 views

1 answer

小程序使用左右滑动的时候滚动条怎么去掉

如上图滑到最右边会出现滚动条实在难看，怎么样能去掉呢？...

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

0 votes

692 views

1 answer

h264编码与emulation prevention防止竞争不符

h264编码防止竞争机制如果检测出有连续两个0x00字节且后一位为0x00 0x01 0x02 0x03，就需要在两个0x00后插入一个0x03，则在NAL数据内肯定不会存在NAL起始码0x000001 分析了一段h264视频数据的编码感觉对不上 h264 ... }{}{}{}{}{}{}{}{}{}{}{}<1><1><1><1><1><1><1&g...

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

0 votes

9.7k views

1 answer

rust - Is there a way I can turn video frames from GStreamer to SkImage instances to be used in Skia?

I'm currently writing my own game engine with GStreamer for media and Skia (Vulkan) for graphics. Is there a way I ... GStreamer through fakesink. Not sure if that's of any help....

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

0 votes

1.4k views

1 answer

mongodb wiredtigerlas.wt 文件巨大

发现服务器磁盘空间被占满了，找到mondodb data目录下wiredtigerlas.wt这个文件占用了100G+,这个文件有什么用，可以直接删除吗？ MongoDB的WiredTigerLAS.wt大小异常分析看到这边文章，总结中写道： ... 隔离级别后得到解决将LAS清理换为使用read commited隔离级别，这个是在什么地方配置呢？...

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

0 votes

1.2k views

1 answer

前端人员能独自解决掉跨域问题吗？

今天，一群前端同事围着我，让我这个前端大佬解决跨域的问题，我也是前端我紧张的要命浏览器里接口请求不通，如下报错： Access to fetch at 'https://cmps.test.ceenk.com: ... the resource with CORS disabled. 请问，我有办法解决吗？另外问一下，跨域问题是否与前端有关系？...

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

0 votes

1.3k views

1 answer

React 子组件怎么获取异步props？

举个例子：父组件 componentWillMount 时： ajax请求回来的数据menu，丢给子组件 <Filter {...menu} /> 子组件的props，有时接接不到，打印不出来有时候有，有时候没有，是不是异步请求导致的？怎么破？...

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

0 votes

1.9k views

1 answer

python - Message: element click intercepted: Element <span>...</span> is not clickable at point (657, 594). Other element would receive the click with Selenium

I was making a webscraper to get gpu stocks from https://www.nvidia.com/en-us/shop/geforce/?page=1&limit=9&locale=en- ... 't know much HTML, how can I achieve clicking this button...

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

0 votes

1.4k views

1 answer

vue项目怎么将http改成https，怎么弄个证书

这底下有我试的方法：在vue页面加head index.html加meta ![@4SGSS]D4TSGF67J`IV}W00.png](/img/bVcKJxx) devServer:{ https：true, } 这种怎么给他弄个证书码...

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

0 votes

1.5k views

1 answer

c++ - Using "extern" keyword without #include "file.h"

Right now i read Stephen Prata's book about C++, and learning about extern keyword and its usage. So i have a question. Can i type ... int main() { cout << a << endl; return 0; }...

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

0 votes

1.2k views

1 answer

这个效果怎么实现呢？

...

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

0 votes

1.4k views

1 answer

JavaScript 中文字符串之间是怎么比较大小的

JavaScript 中文字符串之间是怎么比较大小的如 "中国" > "动画" //false "台湾" < "动画" //false 取第一个不同的字符的ascii值码进行比较那在非英文情况下有是怎么处理的...

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

0 votes

1.3k views

1 answer

Linux系统如何学习？

Linux的命令行可以跳过了，主要提问的是，看完Linux内核解析和Unix内核解析，始终领悟不到精髓，get不到他们的核心内容，这一点很疑惑。...

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

0 votes

1.3k views

1 answer

c# - How do I update the GUI from another thread?

Which is the simplest way to update a Label from another Thread? I have a Form running on thread1, and from that I'm ... the current status of thread2's work. How could I do that?...

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

0 votes

1.3k views

1 answer

flvjs插件在vue中怎么能播放 rtmp 视频流监控视频？

在vue脚手架中引入了 flvjs 播放视频流 rtmp 文件，引入得flvjs 版本号是 1.5.0 ，视频流在浏览器打开插件是能直接播放得，但是在项目中就会报错，看起来像是跨域，但是在浏览器是可以直接访问得。提供湖南卫视得视频流 rtmp://58.200.131.2:1935/livetv/hunantv 希望大佬可以帮我解决一下这个问题。万分感谢...

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

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