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如何找到一个数组中的众数？

输入一个含有n个元素的数组，统计出其中众数及其出现次数，若是有多个众数的情况如何统计？...

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

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邮编番号的正则表达式，所有字符串必须尽可能的包含下述

一个字符串必须包含下面这些可能字符串说明 123， 3位数字加上一个逗号 123 3位数字什么都不加 ,123 逗号加上一个3位数字 1234567， 7位数字加上一个逗号 1234567 7位数字什么都不加，1234567 逗号 ... ,123 正确 ,123, 正确 123,1234567, 正确上述数字3位和7位都是可以，但是其他位数就不行...

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

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361 views

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问个 Git 新手问题

我用 Git Shell 进入我的项目目录，会出现一个黄色括号。【master || 1 | 】这个情况该怎么办...

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

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515 views

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通过java httpclient模拟表单上传 , PHP/5.3.3 上 empty($_FILES) 接收时为空

通过java httpclient模拟表单上传 PHP/5.3.3 上 empty($_FILES) 为空，通过html 代码直接表单提交就是正常的 PHP/5.4.40 也是可以的 httpclient4.5.2 模拟请求的代 ... ).getContent()); php中接收的: if(!empty($_FILES)){ } 这里判断的的时候为空 ...

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

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not able to get performance boost with python concurrent.futures.ThreadPoolExecutor in SQL Server query

I am querying SQL Server for the list of fields both with threading and without threading. import pyodbc import datetime ... , which may lead to slow response. Thanks in advance!...

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

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460 views

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Hybrid应用web端绑定点击事件相关的问题

之前没开发过hybrid的应用，第一次开发用的是zepto绑定事件，共用方法里对全局的data-event绑定相关事件，回调函数里判断是不是客户端然后跳转到相应的链接但在iOS端出了问题 iOS捕获到的事件不是 ... de]) { fn(el, event); } } catch (e) { throw new Error(e) } }); };...

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

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mysql大表如何修改表结构，如增加字段或修改字段类型

一个几千万的innodb表，想要修改其中一个字段的类型，或者增加一个字段，需要怎么操作？...

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

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334 views

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I want to add comments to a text file using Selenium with Python

I want to add comments to a text file using Selenium with Python but No matter how hard I tried I couldn't find and ... because I will get points from this code. Thanks, come easy....

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

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760 views

1 answer

python - throttle with function based views using Django Rest Framework

I am trying to throttle my API routes but I am unable to do it with functions using Django Rest Framework. All the ... not work. I have also added rest-framework in installed apps....

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

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133 views

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Improve select query on a physical table in SQL Server

I have table with 184,970 rows and 9 columns; 6 of them are flags with values of 0 or 1 only. When I run a ... all columns Do you have any idea how can I improve the performance?...

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

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646 views

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c++ - How do I build an llvm-pass and then use clang to load the generated shared library in another rule?

I have the following project structure: llvm-pass/ CMakeLists.txt BUILD program/ main.cc BUILD WORKSPACE In llvm-pass/ ... an argument to the program compilation rule. Any ideas?...

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

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382 views

1 answer

vue.js中的.trm疑问，希望有仙人指点迷津

v-model.trim的形式可以用户输入的首尾空格，但是发现加不加没什么区别啊？是怎么回事？ <div id="trim"> <input v-model.trim="msg"> <span style="background: ... > var app429 = new Vue({ el:'#trim', data:{ msg:'年龄' } });...

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

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319 views

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datanucleus - After upgrading to DataNucleus5.2.3 version from 2.5.3, connection is getting closed after every transaction as compared to 2.5.3 version

Below exception is coming: org.datanucleus.exceptions.NucleusUserException: datanucleus.query.resultSizeMethod of "COUNT" is only ... or make some changes in the DataNucleus code....

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

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860 views

1 answer

php - Wordpress 403 forbidden error only for specific menu

I move my site from 1 server to other, now only 1 WP menu from 3 returns a forbidden error. On my WordPress everything ... I trace the issue and fix it? Forbidden Page/ Header ....

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

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629 views

1 answer

git apply patch 后提示adds whitespace errors是什么原因？

执行git apply v20170405_to_v20170406.patch后就提示warning: 1 line adds whitespace errors. 这是什么原因？...

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

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1.1k views

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iptables 如何将一个网段上的访问转发到一台内网主机上？

在网上架设了一台l2tp服务器，本地使用一台能够连接l2tp的路由器，l2tp服务器分配的网段和路由器分配的不一样，有没有办法通过iptables配置将联入l2tp vpn的主机如果访问路由器下网段IP的话直接能够直接访问？相当于直接访问内网主机...

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

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450 views

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javascript - How to find parents of e.target and their children. And move a 'active class'

This code is about event of 'active' button. I have to use this code globally. But it conflicts with all the elements that have the ... ''); item.className += ' active'; } }); });...

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

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493 views

1 answer

使用document.write输出时会清空当前文档流的问题

<body> <ul> <li>5</li> <li>4</li> </ul> <button type="button" onclick="ff()">ff</button> <script type="text/javascript"> var li = ... 有人说使用document.write输出时会清空当前文档流，但是清空的话又怎么会输出5呢？...

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

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223 views

1 answer

URL不变用selenium提取下一页数据，click该怎么写

两页URL是一样的，怎么转到第二页呢，最好是根据这一页的URL用循环做出来，因为我还有200多个URL，都是类似的情况，页数不确定，希望大神们可以提供参考代码学习下~...

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

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306 views

1 answer

关于安装greenplum过程中的问题

1.系统环境和形相应软件版本: centos6.5 green-plum的版本是4.3.5.2 2.在安装过程中: 1)已经修改了内核参数: net.ipv4.ip_forward = 0 net.ipv4.conf.default.rp_filter = 1 ... 输入的root密码) 求大神们,解释一下这是什么原因造成的,求解答!谢谢了,大神们!!!...

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

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304 views

1 answer

javascript - Konvajs can't move an object after animation

I am making an animation with a Circle. The circle is following a Path trajectory. But after the animation, the Circle is no ... for the circle, but I can't move it. Any ideas?...

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

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487 views

1 answer

How to configure tasker vibrate when detect android work profile app activity

I have an android card app which required nfc card tap on it in order to proceed payment. The app is running at work ... 'm at correct path. Anybody can share me example and steps?...

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

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360 views

1 answer

amazon web services - Architecture for AWS configuration application

I am creating an application which should only store some configuration. I am using AWS AppConfig as the configuration ... a simple way to achieve this using only AWS services?...

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

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310 views

1 answer

关于js函数自身的作用域的问题？

function a(){ console.log(this); } a(); 常规定义一个函数a，它的作用域在a函数定义的时候已经确定，输出的this指向全局，这里没有异议 $(元素).click(function(){ console.log(this ... ，就是局部的 2 在我调用a,b,c,d函数时，如何让这4个函数的this指向$(元素)？...

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

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486 views

1 answer

jsonp返回数据有中文，不是乱码，但是报错 SyntaxError

代码 function getWeather(){ var url = "http://www.weather.com.cn/data/cityinfo/101190408.html?callback=weather()"; var script = document. ... ","img2":"d1.gif","ptime":"18:00"}} 谢谢!...

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

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456 views

1 answer

froala 富文本编辑器不解析html代码？

请问这是怎么回事呢，不解析html代码...

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

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587 views

1 answer

配置 ssl 出现了问题： chrome 浏览器显示 www.mydomain.com 将您重定向的次数过多

环境： lnmp,申请了免费的腾讯 ssl 证书我的 nginx.conf 配置如下： user www www; worker_processes auto; error_log /home/wwwlogs/nginx_error.log crit; ... .mydomain.com" on 0.0.0.0:80, ignored 怎么办？怎么办？...

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

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614 views

1 answer

nuxt.js - nuxt-shopify: cannot add productvariant to checkout (invalid global id)

I am building a headless shopify website using shopify-nuxt. I can already fetch products and productvariants and create ... fetching the product with the wrong ids does not work....

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

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