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1 answer

I'm trying to do a simple app in React Native but I can't find much on the web about threads. All I needed to ... a text file with an interval of 10 seconds. Anyone has any idea?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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544 views

1 answer

FastCGI sent in stderr: "Primary script unknown"

我在迁移服务器时需要在新的服务器上配置好php+nginx环境，但是按照以前的方式配置后发现无法访问页面，查看nginx的错误日志显示： FastCGI sent in stderr: "Primary script ... root # concurs with nginx's one # location ~ /.ht { deny all; } } }...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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392 views

1 answer

hbuilder实时位置

hbuilder能不能做到类似于美团那样，能实时知道配送员的位置信息，不需要手动刷新那种。需要什么技术或者有没有第三方的服务。目前的思路就是只能每隔一段时间提交地理位置，不打算入表，写到内存，每次采用覆盖的形式。然后另一边也是每隔一段时间读取数据，从内存读取应该快速，消耗比较低。...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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843 views

1 answer

c# - Type or namespace definition, or end-of-file expected & Invalid token 'else' in class record

I have an error that I cannot figure out. I have just put some text here, please guide. Here's the error: Type or namespace ... }else{ passError.Visible = false;} } else { } } } }...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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591 views

1 answer

mybatis的注解sql怎么设置返回类型和查询参数，比如我要返回一个封装好的类里面有map属性的

/** * OrderMapper接口 * */ public interface OrderMapper { /** * 查询所有订单 * @return 订单对象集合 * */ @Select(" select Oid,Uname,Odate,Ostate ... 想多表查询需要的字段然后想返回一个PageData,这个类是我写好的，有map属性的...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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328 views

1 answer

IM即时通信服务器原理

点对点的可以直接使用socket进行通信但是一般的工程实现都需要服务器进行转发那么我想请问服务器管理那么多连接它是如何做到可以将消息发送给想发送的人的除了openfire还有什么开源实现...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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322 views

1 answer

我使用laravel5.3的时候设计接口的时候返回的json总是会出现2次？（本地环境lamp）

我在写api接口的时候我使用了jsonResponse 类处理返回的数据 IlluminateHttpJsonResponse public function setJson($errno,$error.$data=[]) { unset($data['errno'], $data ... 啥会回吐数据2次！求大神帮我瞅瞅！替我想想问题出在哪里？？？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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442 views

1 answer

webpack配置文件找不到

如图，想问下这个错误是怎么回事？设置了配置文件，为什么会找不到？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

1 answer

Is it possible to create a DataSnap project in Delphi 10.3.3 Community Edition?

Is it possible to create a DataSnap project in Delphi 10.3.3 Community Edition? I could not find the Web > DataSnap project....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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321 views

1 answer

data structures - Explanation for the following expected circular queue result

I'm trying to create a circular queue and come across this problem. As you see, my answer is incorrect. I still don ... 8 instead. Did I miss something? Please explain this for me....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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209 views

1 answer

beanFactory如何使用

学习使用反射创建beanFactory 用户用法 BeanFactory.getBean(“bean1”) BeanFactory.Invoke(“Class1.Test”) 要用到配置文件哦各位大佬帮帮我...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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232 views

1 answer

c++ - changing characters in char array

I have trouble with the following task: take in limited char array change a given character in array print changed char ... getline (), only for better practice. Thanks in advance!...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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680 views

1 answer

Vue.js 2.0 为什么有时双向绑定img src属性会失败？

正在使用vue.js 2.0 进行单文件组件式开发这段代码是需要进行动态改变img src属性的html <img :src="pictureUrl" v-show="showHead" class="head-profile ... ：就是this.pictureUrl 的值已经改变了，但是在:src="pictureUrl" 没有改变还是为null...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

1 answer

tomcat部署jave-web,网页访问html中文乱码。

在linux上部署了一个tomcat7的服务器本地Java打war放上去，用chrome访问主页html中文显示乱码各自方式都试过了，修改tomcat的service.xml，pom.xml文件的打包限制字符集 linux服务器本身是utf-8的，所以 ... 开，看到的字符集是utf-8 现在不知道问题出在哪儿有没有大神帮忙解惑？！！感谢万分...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

1 answer

移动端粘性布局，低版本ios 7.1.2 touchmove触发频率太低怎么办？

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale= ... : 'static'}); } } </script> </body> </html>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.7k views

1 answer

js 事件导航切换

$("#userTap").on("click","li",function(){ var tag=$(this).data("tag"); $(this).addClass("active").siblings().removeClass("active" ... 改密码</li> <li @click="loginOut">退出登录</li> </ul>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

1 answer

请教一个数组的处理问题

[ [before=>4,after=>5], [before=>2,after=>3], [before=>1,after=>2], [before=>3,after=>4] ] 这样一个数组，表达的含义是4在5前面，2在3前面，1在2前面，3在4前面根据这个数组，得到一个结果数组为[1,2,3,4,5] 请问应该怎么弄啊...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

1 answer

reactjs - How do I find the source code, in VS code, for a component, after running and seeing it locally?

I am working on my first front-end project for someone and he send me the souce code to modify some buttons, but because is ... files, is there any way to do this in a smart way ?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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415 views

1 answer

python - Extract the adjacency matrix from MCP_Geographic(skimage)

I'm trying to extract the adjacency matrix in the skimage module to compare with my other adjacency matrix obtained with MATLAB function adjacency(). There is a way to do that?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

335 views

1 answer

页面调用谷歌地图api的key失效，key是有效的，但是报错

Google Maps API error: InvalidKeyMapError https://developers.google.com......

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

304 views

1 answer

Dapr binding for RabbitMQ not working using Dapr pub/sub sample

I've taken the Dapr pub/sub How-to sample and tried to update it to use RabbitMQ I've downloaded the Docker rabbitmq:3 ... listening on port ${port}!`)) What am I doing wrong?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

1 answer

CSS3图片滑动效果

需实现的效果如下 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> ... 逻辑略微复杂 html结构也不够清晰，不知道有没有更好的的方法实现同样的效果 ...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

385 views

1 answer

viewpager 查看大图卡顿

我是用viewpager做的滑动查看大图的功能 static class SamplePagerAdapter extends PagerAdapter { WeakReference<PreviewImgFragment> mActivity; PreviewImgFragment theActivity; ... 顿这是什么原因的大大们，求帮忙谢谢！...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

374 views

1 answer

asp.net mvc 如何集成angular-ui-router？

我使用asp.net mvc 集成 angular-ui-router，无法正确显示ui-view中的界面！我不知道是不是因为asp.net mvc的路由机制和angular的路由机制冲突的问题！如果有demo的话，望不吝赐教！...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

189 views

1 answer

How can I mount an aws linux instance locally?

I work on a windows machine but I ssh into an AWS linux box to do most of my work. I'm trying to figure out a way I can ... also want to be able to open csv's I generate, etc...)....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

486 views

1 answer

transform: translateY(-50%)在360浏览器极速模式下使得文字变模糊了

图1（极速模式）图2（兼容模式）...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

290 views

1 answer

How to import lcapy library in Python

I am trying to import lcapy but I can not do that through cmd (I also tried with Jupyter Notebook). The error I face is: ModuleNotFoundError: No module named 'lcapy'...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

576 views

1 answer

thinkPHP5.0以后，访问不到模块跳转到404页面如何设置？求大神指教

thinkPHP5.0以后，访问不到模块跳转到404页面如何设置？求大神指教...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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