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背景：主要利用 Node 的 superagent 和 async 模块的 mapLimit 写了个脚本去请求某宝的一个接口，总共大概要请求4000多次，某宝的接口限制是 10 qps 现状：不太清楚用 mapLimit 该怎么实现 10 qps 的 ... 分，就好像是直接 ctrl-C 结束了进程一样那我该怎么去定位异常，或者避免这种程序崩溃呢？...

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

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react native Animated动画如何实现tabBar toggle效果

如果用css3的话很好实现，使用VUE的话更容易实现，但是用reactNative Animated的话，特别是使用了ListView列表渲染的话，要怎么写？在state里面声明一堆new Animate.Value(0)吗？目前react- ... 望能够像vue那样，只修改selected的值，然后视图自己去响应，要怎么做？求方案！！！谢谢...

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

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c# - Making a ball balancing game with the gyroscope of mobile devices

as the title already says, i'm currently working on a small ball balancing game using the gyroscope rotation to rotate ... quaternion problem, i'm stuck with it since several days....

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

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swift - Trying to get the access token from google to fetch the calendar events from google calendar but it crashes

I am getting this error whenever i call GIDAuthentication().getTokensWithHandler: Terminating app due to uncaught exception ' ... .resume() } } Thanks in advance :-)...

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

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225 views

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js的callback到底是什么。有什么实际应用。

rt问题如上--最好麻烦贴一下代码...

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

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178 views

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sql - Improve this query

do you know if there is a way to improve this query? The database where this query runs is very large, and it ... remove the "OR". Another suggestion is to add some "pagination"...

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

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938 views

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vue2 初始设置为空数组循环会报错怎么处理

vue2 初始设置为空数组循环会报错怎么处理 data() { return { page_index: 1, products: [] } }, 我请求回来数据放入 products 页面显示正常就是会报这么个错误。然后我在data 里 products: [''] 就不会出这个错误可是这样不好呀应该这么处理这个错误...

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

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javascript - Display table by merging two columns into one in HTML/CSS + JS (Datatables)

I use https://datatables.net/ to render sortable and searchable tables on my webservice. My table gets very wide, ... two or three different values. This is exactly what I want...

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

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390 views

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vue滑动切换组件怎么实现？

就是像app那样左右滑动切换模块，还有就是切换的过程中路由该怎么办？实在没什么思路...

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

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react-router进行服务端渲染时候引入组件为什么出错

react-router在进行服务端渲染时，用node启一个express服务器，当把一个React组件（图中的Index组件）引入到这个server.js文件中，然后在命令行node server.js就报错，引入这个react组 ... 行的文件中能不能import或者require引入react组件？或者react-router这个服务端渲染该怎么弄？...

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

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Interrupt method with other Button using Python and Tkinter

I'm still learning how to use Python and Tkinter. What I want to do is whenever I clicked on a button while a script is ... bottom", fill="both", expand="yes", padx=10, pady=5)...

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

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django - How to embed a form multiple times with ListView (and once with DetailView)

I have the following listview and detailview structure. I would like to pass in a form to be ... kwargs) class ObjectDetailView(LoginRequiredMixin, DetailView): model = Object...

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

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512 views

1 answer

跨域ajax请求无法带上目标域已存在的cookie？

下面是旧问题作废，之所以不删除是想说明一下问这个问题的前提原因 **目前情况是前后端分离，且后端API和前端不在同一个域的情况下，如果浏览器不手动访问一次后端，那么每次前端发起的ajax请求都会导致 ... 我是Laravel5.3版本，已经正确按照https://segmentfault.com/q/10...方法试过了（路由增加web中间件），均无效...

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

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1 answer

vue resource 发送请求 express 无法获取

在做博客，最先遇到的问题是，添加文章后返回主页，文章列表不刷新尝试了各种方法，用activated实现了现在遇到的问题是，在主页添加文章分组后，文章分组不刷新因为生命周期钩子都不执行我尝试$router.go ... .json({ 'style': OK, 'groups':groups }); }); }); 我一定忽略了什么地方，请教各位 ...

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

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760 views

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sublime 代码片段如何加上当前时间

sublime 如果在代码片段里面加上现在的时间？？...

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

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413 views

1 answer

镜像存储后，绑定域名无法访问

已经显示发布成功这里是设置镜像源图 ssh 查看显示成功接下我用绑定的域名访问，结果出现 not found...

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

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求一个使用paypal快速支付的例子

这里是文档,https://www.paypal.com/cgi-bi... 应该如何测试,无法测试返回,希望高人指点一二...

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

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451 views

1 answer

动手写一个js 省市联动插件

移动端用的MUI的省市插件，但在PC上显示的太丑了于是想动手做一个大概是这个样子两个select框，点击省份可以选择市可以有省市可有默认值数据有了求实现思路数据的模式如下图 var cityData3 = [{ value: ' ... }, ------更新自己研究了一下已经把省弄出来了如何把市与省关联起来呢还有默认值怎么设置----...

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

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1 answer

c# - ConfigurationErrorsException: Unrecognized configuration section add

I am creating a console application and in order to read the connection string , I created ... ); saying ConfigurationErrorsException: Unrecognized configuration section add....

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

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392 views

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Java中的枚举类型存储在Jvm运行期的那个区域？为什么单例模式用枚举就完美解决了？

Java中的枚举类型是存储在Java运行期的那个区域？为什么单例模式用枚举就完美解决了？枚举的内存分配是发生在什么时候？初始化又是啥发生在什么时候？代码中使用枚举时候，发生了什么事情？...

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

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394 views

1 answer

TP框架多站点网站从IIS服务器移植到本地测试找不到入口,怎么解决?

这是目录,里面有微信端,APP端,还有WEB端,移植到本地测试环境打开localhost显示找不到入口文件,原服务器是IIS的各个入口文件这是错误信息...

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

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149 views

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css伪类居中？

如图，蓝色那条是伪类，推荐是文字，文字显然向上偏移了一点点，现在想让它们完美居中 <p>推荐</p> p { height: 42px; font-size: 14px; display: ... : 3px; height: 14px; margin-right: 10px; background-color: #10ace5; } } 求助，谢谢！...

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

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206 views

1 answer

sql - How to query between Date Range

I am querying a table with a time column returned in the format below: 2020-12-30 18:26:23.537 2020-12-30 17:43:19.707 2020-12- ... '2020-12-22' ) and (sms.[Time] <= '2020-12-28'))...

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

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467 views

1 answer

帮忙用PHP实现如下Java的功能

package com.company; import java.net.URLDecoder; import java.net.URLEncoder; import java.util.Arrays; import javax.crypto. ... ; System.out.println(AES256Util.decrypt(msg)); } }...

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

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420 views

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Django 怎么自动同步某个文件夹内的图片至数据库？

接触Django时间不长，不是很懂Django 希望有大神帮助最近在做一个小项目，其中有一个步骤是：某个程序会不断地生成一些图片，存放在路径C:UsersadminPictures下，现 ... , 'rb') new_img = Image(original=thisFile, title=filename) new_img.save() 但是会报错...

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

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408 views

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Is there a way to read an exact amount of split integers in C#?

Basically I've got this code: var inputData = Console.ReadLine().Split(' '); int N = int.Parse(inputData[0]); ... huge chunk here and I want to thank everybody for reaching out....

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

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613 views

1 answer

vue.js中子父级双向绑定报错的原因？

这是我的代码过程，虽然已经实现了双向绑定，但是当通过子组件改变数据时，浏览器就会报错。...

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

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209 views

1 answer

html - Javascript .innerHTML deletes everything else inside the website

I am completely new to JS, HTML and CSS, and I am creating a small project using javascript. The project ... else disappears from the website. Would greatly appreciate any help!...

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

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