Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Ask a Question
Welcome To Ask or Share your Answers For Others

Categories

Recent questions

0 votes
438 views
1 answer
react+dva脚手架中，如何全局引入axios?
    react官方脚手架中，我们可以在app.js中引入 app.js import axios from "axios"; React.Component.prototype.axios = axios; 然后在组件里面就可以 this.axios.get('url') . ... 路由里面，现在不想这么做，想在路由里面按需axios调用接口 请问可以实现吗？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
544 views
1 answer
移动端视口的默认宽度是980px，但是为什么一个PC端的网站宽度超过1200还是没有出现滚动条
    移动端的一些概念还是不太行，最近研究了一下 发现一个问题，移动端视口的默认宽度是980px，适用于PC端的网站宽度超过1200还是没有出现滚动条，这是为什么呢...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
230 views
1 answer
求助：不知是node的问题还是npm配置的问题，
    每次运行vue程序的时候，终端会显示大段大段的这种不知道该怎么称呼的路径输出，有时候会导致cpu跑的非常高，vscode直接崩溃，重启vscode以后运行又会崩溃，试过把node重装，vscode重装，webstorm重装，都没有用，总结下来，不是软件的问题，可能是配置的问题，但是没有找到解决的方法。...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
915 views
1 answer
How to upload image using sqlalchemy (python flask)
    I'm a new programmer, i'm using python flask and sqlalchemy database. i want to upload image and ... form_picture) i.thumbnail(output_size) i.save(picture_path) return picture_fn...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
197 views
1 answer
Kafka docker image that works without zookeepr
    I read that Kafka no longer requires zookeeper, so I don't want to have zookeeper in docker-compose. But I don't know ... image can work w/o zookeeper. can anyone give a hint?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
490 views
1 answer
php - error in npm install && npm run dev when installing breeze
    Im new to Laravel and wanted to use breeze authentication in my Laravel app. I created my project and migrate my database tables then based ... 3.1.0", "tailwindcss": "^2.0.2" } }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
267 views
1 answer
Python多线程如何保证线程同步？
    在我使用多线程的过程中，返回的结果有很多重复和缺少，我个人认为是因为线程资源不同步导致的，请问如何修改代码实现同步，和不要出现重复？是使用生产消费 ... as_completed(tasks): check_result = task.result() save(check_result) if __name__ == '__main__': main()...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
587 views
1 answer
npm i 和 npm i -S有什么区别吗？
    两个命令似乎都会写入dependencies里 是npm i 默认等同于 npm i -S 吗？ 修改下，突然发现表述有一点儿歧义，准确的说 npm i 模块名 和 npm i -S 模块名 有什么区别？ 这两个都是会写入package.json里的...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
440 views
1 answer
如何通过php模拟登录到系统中读取写入信息？
    一个需要账号密码登录验证的办公系统，现在我想用php写一个模拟登录程序。登录进去后查询我想要的信息，并可以通过这套办公系统原有的表单向里面提交写入数据！ 给点实际的解题思路，curl？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
157 views
1 answer
java - How to print sentences in both threads?
    class X1 extends Thread { public void run() { System.out.println("I am X1"); } } class Y2{ public void run() { while (true) ... Y2 . But it only prints I am Y2 . How to fix it?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
333 views
1 answer
go-micro不能自动发现服务
    环境: go1.14.7 go-micro v2 centos7 暂不涉及数据库等 go-micro的组网方式： 走的127.0.0.1 或192.168这样的形式都试过 服务注册方式:mdns 现像： 我用go-micro编写了微服务，编译后 ... 连服务器都重启过 selinux是关闭的 已经想了很久的办法了，还没搞定，请大佬指点一下 谢谢！...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
459 views
1 answer
想用C#改变显示器颜色，可否使用ChangeDisplaySettings？
    有没有例子？回答者可获得个人微信红包感谢。...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
693 views
1 answer
小程序调用wx.requestPayment发起微信支付，用户长时间停留在输入密码页面，多久会超时？
    小程序调用wx.requestPayment发起微信支付，就会弹出输入密码的界面。 如果用户长时间停留在输入密码页面，多久会超时 导致支付失败？ 或者说，微信支付有没有超时机制？ 发起支付时，服务器端锁定库存，如果长时间不付款，实际库存可能没有了，导致后面付款了 却没有库存。 文档似乎没有提到这个...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
460 views
1 answer
关于堆排序和快速排序的空间复杂度
    如题，我在网上看到的这两个时间复杂度分别是O(1)和$O(log_n)$。 对于快速排序(递归)的空间复杂度，在最好情况下(数组是不均匀的)，那么它的空间复杂度是递归栈(树)的高度$O(log_n)$，在最坏情况下(数组是有序的)，则为$O(n)$。 如果是要计算递归使用到的栈，那么堆排序不应该也去计算对应的递归栈深度吗？那么为什么是O(1)呢？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
282 views
1 answer
.net core - How can I solve the error in my API project?
    I added an API project to my project. Although I have given all references when I run it, I get the following error. How can ... (page - 1) * pageSize).Take(pageSize).ToList(); } }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
627 views
1 answer
各位中午好，想问下微信小程序有办法做到 识别公众号二维码 吗
    各位中午好，想问下微信小程序有办法做到 识别公众号二维码 吗...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
475 views
1 answer
Continue writing to a file with max size in C++
    I want to write to a text file with limited size (1KB for example) and when the file reaches the maximum size I want the first half ... ,9] the new file will look like: 4 5 6 7 8 9...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
602 views
1 answer
文本中含有'这样的符号乱码，如何将其转为正常显示的文本？
    从网上扒过来的数据。 这个'在原网站上显示的是单引号 ' 但扒过来就显示成了' 我试过将文本转为utf-8，结果转换之后，仍显示'，没变化 像这种编码的文字怎么能转换成正常格式显示？总不能用正则吧......
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
588 views
1 answer
flutter怎么引入第三方jar包并调用
    参照这篇文章引用：https://blog.csdn.net/qq_16755585/article/details/91492806 但是这篇文章里面很多目录我都没有是怎么回事？ 像Android->src->main->java->com.example.文件名- ... 因为新版本的问题吗， 有没有大佬知道新版本怎么引用jar包并调用，球球了！！！！！...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
675 views
1 answer
django 如何配置以文章标题生成URL？
    像WORDPRESS一样，以文章标题作为URL。思路是？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
468 views
1 answer
r - How can I change my plot that it doesn't look that filled?
    I would like to have a not that filled plot. that is my code ggplot(master, aes(x = Income, y = BMI, group ... )+labs(title = "Correaltion between Income and BMI")+ scale_y_log10()...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
822 views
1 answer
python - How to add mulitple buttons to a Kivy Layout
    I am trying to a make a music player using Kivy, which will just have two button; one for play and one for ... ) I get served this TypeError: the first argument must be callable...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.5k views
1 answer
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)
0 votes
708 views
1 answer
reactjs - how to install react-native-video on windows app?
    for a certain windows app I am trying to install the react-native-video package on the solution project. I found ... source code "ReactNativeVideoCPP.h" what could be the problem?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
689 views
1 answer
请问如何将从嵌套型接口返回数据中挑选出需要的内容
    定义变量result，类型为any(为了防止提示类型未定义),将接口返回的内容赋给result,result打印结果如图所示 我想要从这些数据中挑出一部分内容用于前端显示，使用result.apiVersion能够正确取出对应的值， ... undefined，可是result不是已经设置为any了吗？ 请问这个要如何解决呢，我应该如何写才能正确取出值呢？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
861 views
1 answer
在DolphinDB GUI中执行脚本创建的本地变量，是不是占用server端的内存？
    使用DolphinDB的过程中，我在windows端启动了GUI界面，执行了一个DolphinDB的脚本，创建了一些本地变量（不是数据库或共享表），这些本地变量是算GUI java进程的内存还是算DolphinDB server端进程的内存？getMemoryStat()这个函数返回的内存占用情况是DolphinDB server端进程的内存占用情况吗？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
817 views
1 answer
What is the unit SVG text coordinates?
    H i all. Can someone explain me what is the unit of Svg text coordinates? And how we translate them to pixels? Thank ... ="position: absolute; left: 23.5625px; top: 195.987px">...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.1k views
1 answer
webpack3+vue2.5怎么把host写到window里
    需求是希望打包后能打出一个config.js文件，里面有host，可以随便修改 开发的时候有多个环境的配置文件 // dev.js window.api = 'https://www.baidu.com/api/dev' // test.js ... 搜索替换host，如12.12.12.12，这样比较麻烦，希望能在dist目录下能有一个配置文件，直接修改...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
Page:
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

Just Browsing Browsing

2.1m questions

2.1m answers

60 comments

56.6k users

Most popular tags

Recent questions
Powered by Question2Answer
Donate
Theme by Q2A Market&&OStack.cn
...