Hot questions

0 votes

546 views

1 answer

sockets - How to find a free local port using Swift?

For a local server I need to specify a port, which must not be in use. There's a really neat solution in Python ... to specify one in getaddrinfo. What's the correct way here?...

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

0 votes

1.1k views

1 answer

axios post 出错。 POSTMAN 没问题

POSTMAN POST raw json没有问题但是axios Post 返回403错误 !...

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

0 votes

259 views

1 answer

reactjs - In react, when src directory symlinked from other directory within react app, throws rendor error

When we symliked src directory from somewhere, within react app throws error 'jsx' isn't currently enabled. If the ... /src' npm run start or yarn start Throws below error...

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

0 votes

618 views

1 answer

nginx怎么配置react的静态地址的路径?

BrowserRouter模式的路由.一般地址带参数: 正常静态文件的地址:www.xxx.com/static/css/common.css 当访问www.xxx.com/game/22的时候静态文件地址:www.xxx.com/game/static/ ... 把game这个路由名称也带进来了.. 请问nginx配置怎么处理静态文件的地址规则?...

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

0 votes

158 views

1 answer

Tableau: Distinct count of a field which occurs more than once

I have a field customer_id and I need to track the number of unique users and repeat users. For example the table is as below: customer_id 11 22 33 11 44 22...

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

0 votes

268 views

1 answer

c++ - How to attach source for static library(.a lib file) in CLion for debugging

I am kinda new to C++ programming. I download a source for external library and had to build it, I got a lib ... on java development but CLion has no such option. Please assist....

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

0 votes

456 views

1 answer

使用瀑布流插件masonry，图片未加载完就会出现重叠现象，怎么解决？

//使用了imagesLoaded插件来判断图片是否加载完毕 var $grid = $('ul#grid'); $grid.imagesLoaded().done( function(instance) { // 加载完成 $grid.masonry({ // fitWidth: ... 图片重叠的情况发生呢？实在搞不定了，还望大神帮忙解决！~非常感谢！~...

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

0 votes

501 views

1 answer

vue devtools 报错 vue-inspect-instance找不到？

下载了https://github.com/vuejs/vue-... master分支的代码后 1.install 2.npm run build 3.更改了manifest.json persistent 为 true ... : Cannot find menu item with id vue-inspect-instance 错误信息详情...

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

0 votes

408 views

1 answer

elementUI表格中的select组件怎么获取当前行的数据

如图，elementUI table组件中使用了select组件，怎么在select（红框）的值发生变化（或触发其他任何事件）的时候，获取当前行（绿框）的数据 <el-table-column label="实际 ... ="item.id"> </el-option> </el-select> </template> </el-table-column>...

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

0 votes

277 views

1 answer

attr - Angular 2+ Can you add/remove a CSS class based on html data property?

First I would like to add a little more context to the question. Right now I have the following: A list item ... vice versa on the mouseout event. Here is a working StackBlitz...

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

0 votes

325 views

1 answer

怎么快速计算最近1000个shares的vwap

我要计算单个股票最近1000shares相关的所有trades的vwap（成交量加权平均价），这1000shares可能是100 300 600三个trades的，也可能是30000 100两个trades的找到参与计算的trades，使得shares总和超过1000， ... 的vwap 我的代码如下：运行了一下，速度不是很快，不知道是否有更快的写法？...

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

0 votes

677 views

1 answer

echarts中y坐标轴有负值得情况.

设置了onZero属性，但是他只是坐标轴移到了负值为起始，柱状图并没有从负值开始，直方图还是从0开始，可以问一下你们是如何解决得嘛...

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

0 votes

508 views

1 answer

jupyter lab interface icons lost

I recently installed a new enviroment. Since this day my interface icons in Jupyter lab are lost. Do i need to reinstall jupyter lab?...

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

0 votes

226 views

1 answer

vue.js - Vuetify day moth picker

I need just to pick up the day and month .. how to do that in vuetify .. I need this for tracking financial year ... is just day and month - 31 December forexample in each year )...

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

0 votes

507 views

1 answer

classification - Difference between CrossEntropyLoss and NNLLoss with log_softmax in PyTorch?

When I am building a classifier in PyTorch, I have 2 options to do Using the nn.CrossEntropyLoss without any ... approaches. Now, what approach should anyone use, and why?...

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

0 votes

381 views

1 answer

前端实现文件下载报错？

从腾讯云cos获取到的文件内容，返回是这样的：获取到内容之后我是这样触发下载的： const anchor = document.createElement('a'); anchor.style.display = ' ... anchor.href); document.body.removeChild(anchor); 但是下载完打开的时候就报文件损坏...

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

0 votes

902 views

1 answer

ckeditor5在vue中使用我想添加一个 audio 的上传按钮，但是水平有限，求个指点

ckeditor.vue <template> <div>  <div id="toolbar-container"></div>  <div style="margin-left: ... }; 官方链接 https://ckeditor.com/docs/cke... 看不懂该怎么写，写在哪 ...

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

0 votes

306 views

1 answer

关于echarts的问题？

在el-tab中使用echarts 设置了宽100% 高500px，但是解析出来的话,变成了宽100px了这该如何解决？...

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

0 votes

362 views

1 answer

Linux运行可执行文件如何指定动态链接库

在当前目录下有一个可执行文件modified $ ldd modified linux-vdso.so.1 (0x00007ffff7fce000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 ( ... 才能使得运行modified时不使用系统中原有的库，而使用当前目录下的库？...

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

0 votes

402 views

1 answer

请教一个关于java参数传递的问题

本人java初学者，最近学习到异常处理，在试着自己写一个异常处理时遇到了一个问题我想通过无参构造方法直接把 message传给父类的含参构造方法这个会报错，我搜了一下这个问题，大概是由于message这个实例变量是在构造方法执行 ... 造方法，但按前面的理解不应该是调用子类构造方法前必需先调用父类的构造方法吗？这时message是怎么传给父类的呢？...

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

0 votes

111 views

1 answer

reactjs - history change url does not load

When you click on the button, the url changes but the redirect does not occur. If you reload manually, then it opens the desired page. ... /> </div> </div> </Switch> </Router> ); }...

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

0 votes

271 views

1 answer

gulp.src(...).pide is not a function，有人遇到过没帮忙看一看啊？

文件是这样的： var gulp = require('gulp'); var postcss = require('gulp-postcss'); var px2rem = require(' ... pm-cache\_logs2020-08-23T10_24_52_522Z-debug.log PS W:My-ProjectWebSite-Music>...

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

0 votes

169 views

1 answer

javascript - JS IF Else And syntax

Have looked on google and w3schools, but can't find an solution to my question. If I have two values A and B, how ... both A AND B is filled Else do condition if non are filled...

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

0 votes

159 views

1 answer

python - How to transfer real time data to ec2 instance?

The entire process can be described in following steps - Send image frame to EC2 instance Process frame Send it back to ... method is very slow, Need to transfer data real time....

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

0 votes

230 views

1 answer

python - Printing the broader and narrower concepts against the captured URI REF

I am having difficulty in printing the SKOS broader and narrower concepts against my URIRef (i.e. the output of the SPAQRL query). I ... " .} } """) for row in qres: print(row)...

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

0 votes

283 views

1 answer

请问用 Regex 如何删除行数是偶数的？

抱歉，我是Regex超级菜鸟请问我想将行数是偶数的整行删除。举例输入。 Line11010 Life2202 Lixf23232 Lixcv003954 Lixvxc4504350 Lixe30472304723 期望结果。 Line11010 Lixf23232 Lixvxc4504350...

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

0 votes

142 views

1 answer

关于React路由嵌套

现在有一个这样的需求登录页面的路由是/login 登录后的路由是/ 那么登录之后子路由该怎么实现如果直接写成/*这种则就直接跳转到了空白页面 class RouteMap extends React ... {Detail}/> <Route path="*" component={NotFound}/> </Route> </Router> ) } }...

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

0 votes

186 views

1 answer

这个代码为什么要这么写？

let canvas = <HTMLCanvasElement>document.getElementById("canvas"); 在看ts代码时候看到很多这样的，前面的尖括号表示什么意思...

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

Categories

Just Browsing Browsing

Most popular tags