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java - How to delete all duplicate element from an array without using any library or collection

As the header said. I want to delete all duplicate element from an array without using any library or collection. ... other more efficiently way to delete duplicates? Thank you!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Argument 1 passed to SymfonyComponentValidatorMappingGenericMetadata::addConstraint() must be an instance, string given

When I upgraded the system running Symfony3.0 to version 3.4, the following error occured. It is a function to change the ... , alias: article } Version Symfony 3.4.47 PHP 7.3...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql出现大量page_cleaner，且伴随慢日志产生

mysql error log: 2020-07-22T04:15:08.322780+08:00 0 [Note] InnoDB: page_cleaner: 1000ms intended loop took 5236ms. The settings might not be ... ，就会影响线上服务再出现慢日志就考虑要重建mysql了 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net core webapi - Error controller not being hit due to Fallback controller

I'm running a .NET Core 3.1 Web API project and below is my pipeline. The problem I face is that when an error occurs ... (), "wwwroot", "index.html"), "text/HTML"); }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Swagger UI not loaded in Docker

I have an issue with Docker Containers. I am working on an Web Service targeting ASP.Net Core v.3.1 and it has JWT authentization ... up page ... options.RoutePrefix = ""; }); } }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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关于python遍历字典基础

for key in dict 和 for key in dict.keys() 它们有什么不一样吗？我看教程好像除了第二种多了 .keys() ，好像没有区别啊？ x = {'a':'A', 'b':'B'} for key in ... x = {'a':'A', 'b':'B'} for key in x.keys(): print(key) a b...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pandas - Changing index type from a value_counts()

I am trying to change the index type from int to string after a value_counts() df ['value'] .value_counts() .sort_index() ... 72 100.0 52 105.0 53 Name: value, dtype: string...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Getting an unwanted output

In this code, I am experiencing a very frustrating problem. I have a variable named moves which initial value is ... of codeforces :https://codeforces.com/contest/263/problem/A...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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关于硬币找零的问题？

场景给定硬币种类为1,5,11 求找零32共有多少种情况？感觉应该是f(n) = f(n-1) + f(n-5) + f(n-11) 不知道这么用代码实现原来这个题这么复杂美团校招在线考试笔试题：钱币面值组合...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ant design vue在表格外面添加一个删除按钮，当用户选中表格数据，然后可以删除，能够多选删除和单选删除

用户点击确定的时候可以把选中的删除 <a-table style="height:500px" ref="table2" bordered size="middle" rowKey="id" :columns="columns2" ... -checked-children="停用" default-checked /> </span> </a-table>...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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SwooleCoroutineClient如何监听server发送过来的数据

SwooleCoroutineClient如何监听server发送过来的数据...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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服务器无法ping本机，但本机可以ping服务器

我在阿里云上购买了一台服务器，但发现服务器无法ping本机，但是本机可以ping到服务器，想问下这是什么问题？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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739 views

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页面父元素设置了 transform:scale() 后，高德地图样式正常，但是点击、鼠标经过等位置偏移掉了？

页面父元素设置了 transform:scale() 后，高德地图样式正常，但是点击、鼠标经过等位置偏移掉了？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请问OPENGL怎么绘制环形？

请问各位大佬，OPENGL怎么绘制环形，并且能够在上面着色呢？请多指点，不胜感激！...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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react中对深层子组件进行状态更新，在diff时还会从根比较两棵完整的树吗

比如App组件是项目的根组件，它的深层里有一个子组件Dog状态更新了。此时做diff比较时，是用新旧APP组件比较两棵完整的大树，还是只diff比较Dog下的树？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Next.JS rewrite isn't happening

I hope this question is clear, I am somewhat at the end of my mental resources at the moment. I have some Nginx ... out why because I found a simpler hack to solve my problem....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Aggregating data percentage wise based on date related criteria from a table

I have legacy tables which tracks flight and had to extract data. We have three tables named booking, airlines and flighttype. Note this ... 60 Eur 6 1 12-01-2020 10:23 1 3 35 Eur...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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[已解决] 求一个HTML代码

已解决，谢谢 HTML单文件一个倒计时代码切换页面会暂停找了半天没找怎么弄谢谢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vba - Pass array to ParamArray

is it possible to pass all elements of an array to a ParamArray? For example I'd like to pass a ParamArray to ... this is probably not possible in VBA. Thanks for help, Michael...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请问遍历ul里的li的个数怎么控制啊？

这个ul里的li的个数怎么控制啊？我根本没有设置li的个数。他就自己生产了6个。我其实只想要遍历4个。怎么限制数量呢？代码：...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ajax怎么设置Request headers里面的值

$.ajax({ ... beforeSend: function(request) { request.setRequestHeader("abc", "111"); request.setRequestHeader("Cookie", "ID= ... "Cookie" 为什么abc可以cookie不行，要在请求头携带cookie咋搞...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

sqlite - sqlite3 function inside python program

I'm using a function inside a python program that doesn't work as expected. I would like to call a sqlite3 function ... new day arrives I can't understand where my mistake is......

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Object literal's property 'bedRooms' implicitly has an 'any' type. Error TypeScript

I am new to typeScript. I have declared a type anotation object in my react app. type DefaultHomeValueProps = { value ... 's property 'bedRooms' implicitly has an 'any' type....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can I create a text input box with Pygame?

I want to get some text input from the user in Python and display what they are typing in a text box, and when they ... , but I just can't find anything. I'm using Pygame....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

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f# - mailboxprocessor does not terminate

I have a timeout exception (and I really intend to set a timeout) inside a message loop and I have tried to catch ... is setting a timeout (for example of 30 seconds) instead....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javax.websocket.Session 获取requestUri

如下图,在java中定义一个websocket,如下图所示 package com.litong.spring.boot.video.player.modlue.page.video.websocket; import javax. ... 误"); error.printStackTrace(); } } 如何在onOpen获取requestUri...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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298 views

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订单拆分子订单,子订单金额相加不等于父订单金额

商品*3(购买数量)=1块钱,拆分成三个订单那么每个商品对应的订单金额就是0.33(程序四舍五入) 我现在把三个订单的金额加起来=0.99,这就少了0.01 我现在是和钱包一起用的,有可能出现这种情况 3个商品3块钱,我用了2块钱包...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

JS-SDK config:invalid signature 一直报这个？代码有什么问题吗？

var current_url = location.href.split('#')[0]; var encodeUri = encodeURIComponent(current_url); var ua=window.navigator.userAgent.toLowerCase(); ... 消分享========>>"); } }); }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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