Recent questions in Technique[技术]

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如何用echarts实现从北京到上海然后在到深圳有一个动态的迁移效果，最好给个简单的demo。

官网上看的demo都是从一个地方到一个地方，没有看到3个或三个以上按顺序迁移的，该怎么做呢...

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

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replace - Remove everything except for first 3 words of a line in Notepad++

I have a lengthy text document and I would like to remove everything except for the first 3 words of each line. I've seen ... like to keep) hello how are this is just today is a...

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

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239 views

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需要对数据库中保存的用户密码做二次加密吗？

前端API使用HTTPS传过来的经过SHA256处理的密码，后端有必要再额外进行对称加密或者非对称加密进行保存吗？暂时不考虑盐。...

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

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js对象中函数写法规范问题请教

用面向对象写程序过程中对对象中的方法写法有点疑问： var oop={ a:1, b:2, //函数写法1： f1(){ alert('你好'); } //函数写法2： f1:function(){ alert('你好'); } // ... 是以最新的ES6为参考标准？在文本编辑器下测试三种都可以用，在IDE平台webstorm下只能用方法2,这是为何？...

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

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objective c - when there is no internet connection the URLSession returning NSURLErrorTimedOut instead of NSURLErrorNotConnectedToInternet iOS 14

When i execute code with my internet connection disabled. In iOS13 the completionBlock gets called immediately and I have this ... get error.Code=-1009 in iOS14, Thanks in advance....

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

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417 views

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asyncio.wait和asyncio.gather的区别?

刚学PYTHON的协程,我想请教下,这两段代码执行起来有什么区别呢? tasks = [asyncio.ensure_future(task(i)) for i in range(0,300)] ... task(i) for i in range(0,300)] loop.run_until_complete(asyncio.wait(tasks))...

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

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python - Data not saving SQLite3 python3.4

I am currently trying to create a sqlite database of peoples names and ip While my code seems to work when I run it the ... 3.14.1 I have tried changing ips to main.ips and back...

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

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703 views

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async 在 weex 使用时遇到的问题

编译 ES6 的工具是一样的，在 weex 项目中则报错尝试过各种解决方案都失败了最简单的试验代码 async function f() { return 'hello world'; } ... .844 (index.js:1072) at __webpack_require__ (index.js:22) at eval (index.js:1)...

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

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关于swift3.0的类目问题

在swift中,我在使用类目调用的时候出现了一个错误,求解答: Use of instance member 'creatImageWithColor' on type 'UIImage'; did ... 解决 editBtn.addTarget(self, action: #selector(editNow), for: .touchUpInside)...

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

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310 views

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hexo出错

Windows_NT 10.0.14393 npm ERR! argv "E: ode ode.exe" "C:UsersvipAppDataRoaming pm ode_modules pmin pm-cli.js" "install" "hexo" npm ERR! ... npm install hexo出现了这个问题，请问有谁知道这个问题怎么解决？...

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

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google chrome - How to run Flex application after disable flash player in all browsers after 2020

I'm still supporting a couple of flex applications because migration is in progress, is there any option to enable ... how to continue the Flashplayer support for the next months....

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

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351 views

1 answer

为什么创建ServerSocket失败？

ServerSocket myServerSocket = new ServerSocket(); 通常情况下我是可以正常创建的，但是，偶尔会出现如下错误并且创建失败：这个报错我在google上也进行过搜索，按照报错提示是没有网络，但是我确定我是有网络的，并且 ... 没有重新打开，就一直会创建失败，非常困惑（我不知道针对这个问题，我是否需要提供更多代码）...

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

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340 views

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twitter bootstrap - can't see my drop down button on collapse

I'm new to learning bootstrap and am tryin to make my site a responsive nav bar. When I collapse the page, I can't see the typical ... Tour</a></li> </ul> </div> </div> </nav>...

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

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Laravel如何取得事务提交后的自增主键id？

比如说我在Laravel的查询构造器中使用了事务，事务里面有两条insert语句，我想在正确提交事务之后取得这两条insert语句返回的自增id，如何做到？...

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

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389 views

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我的webstorm有的代码底色怎么变成了这样

下载了最新版的webstorm，然后代码底色变白了如果是白色底色，代码底色就是这样，怎么设置让这玩意去掉啊，还我纯净黑色！！...

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

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623 views

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charts - Embedded Vega is missing tooltips

I have the following JSFiddle, demonstrating a small Vega Bar chart: <head> <script src="https://cdn.jsdelivr.net/npm ... please help me get a tooltip in the HTML-embedded version?...

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

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145 views

1 answer

Java中的宗量怎么理解呢？

我在看《Java虚拟机原理》中有描述宗量：方法的接收者和方法的参数统称为方法的宗量。这个宗量如何理解呢，【方法的接收者】和【方法的参数】方法的宗量【方法的接收者】和【方法的参数】这两个概念是什么意思呢...

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

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413 views

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jQuery数字递增动画代码疑惑

// 数字递增 function countToNumber(el, number, suffix, duration) { $({ count: parseInt(el.text().split("+")[0].replace(/,/g, '')) }).animate ... 第二个参数如果为对象的话其中的step的now是什么？后面那段正则又怎么理解？...

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

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347 views

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想让border向上移动1px margin-bottom:-1px不好使

请输入代码 #nav { width: 100%; height: .5rem; background: #eee; font-size: .18rem; } #nav ul { /* list-style: ... : #0099FF; border-bottom: 1px solid #0099FF; margin-bottom: -1px; }...

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

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417 views

1 answer

Youtube Data V3 resulting in 403

There's been some changes made to the API since I used it last. This is the way I've successfully used it in ... to raise the API key to something more than zero allowed requests?...

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

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464 views

1 answer

json格式数据如何提取指定中文字符串。

本人新手，想编写一个小程序解决工作中的问题，但是在两个地方实际结果及调试结果存在很大差异，百度不得其解，特来请教！程序的功能很简单，就是把快递单号利用requests提交到快递100的查询网站，然后利用正则表达式提取其中的特定中文字符串 ... 实际不能匹配到指定字符串的条码并不能被保存起来猜想问题因该是在中文字符串的正则表达式这块，单不知道如何解决 ...

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

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352 views

1 answer

Pulling Permissions From Exchange 2016 PowerShell

I am trying to find out who has Full Access to mailboxes in Exchange 2016 via PowerShell. PS C:Windowssystem32> Get ... access to other email accounts so I am missing something....

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

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302 views

1 answer

python - PyQt, how can I connect button?

I have a login form and I want to connect the button to another window. So here is my code but when I run ... self.setWindowTitle('Hasil Pilkada') #stuff right here too self.show()...

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

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211 views

1 answer

c - Context Switching

I m trying to follow a tutorial implementinng task schedular in stm32f407 discovery board. There are four functions which ... very much confident about what I m doing Thank You...

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

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296 views

1 answer

java - Shuffling ObservableList fires incorrect change notification

Method FXCollections.shuffle() fires only wasRemoved change notification. As we may know, shuffling isn't only about removing, but ... System.out.println("wasAdded"); } } }; } }...

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

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435 views

1 answer

weex官网称支持vue2的<transition>,可使用后发现网页有效果而在weex的playground上没有效果？

文章地址为：http://weex.incubator.apache.... 外部例子，使用了<transition>的： http://dotwe.org/vue/b3f30c03... 官网例子，没使用<transition>的： http://dotwe.org/vue/ ... 测试结果是第一个效果缺失，第二个正常通过！请大佬们解答，本人在此谢过 ...

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

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534 views

1 answer

webpack自动编译功能提示成功，但硬盘上文件没变化？

难道是我姿势不正确？...

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

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363 views

1 answer

vue单文件里name属性是做什么的？

自己创建了一个heade.vue引入组件，不写这个name属性是可以的。这个name属性是不是和路由有关？？知道的告诉下...

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

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