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recursion - C - linked list reverse recursively: why use double pointer?
I understand the logic when the struct Node *head is a global variable. However, when I do the ... logical diagram/pic/explanation/examples that can explain this difference?...
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Firebase Phone Authentication not functioning for Release variant - Android
I have gone through numerous questions on SO about this issue but I am unable to figure out what my issue ... Its been mightily frustrating. Any pointers would be much appreciated!...
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amazon web services - Using AWS SQS for API processing
Does anyone have experience/links to articles discussing using AWS SQS within an API architecture? It looks well ... be out there when considering an architecture like that....
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为什么github好像又改版了
是我的样式没有加载完全么,还是根据用户所在的区域有不同的渲染?...
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blob 链接无法打开
前端是这样写的,后端返回的是二进制文件,但是图片无法打开。 network是这样。 最终效果是这样。 图片是没有损坏。...
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vue添加高德地图不显示,有告警
告警图片跟这里面的一样 https://ostack.cn/q/10... 求教...
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Jan 27, 2021
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rust所有权问题
我想让Handbag take方法 返回articke 中数据的所有权 并设置为None 这个编译器都不通过 (⊙﹏⊙)晕(((φ(◎ロ◎;)φ))) struct Handbag<T> { ... E0506, E0507. For more information about an error, try `rustc --explain E0506`....
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authentication - Race condition in JWT
Reading several tutorials about using JWT for login/logout purposes in website/app, they all seem to suggest this mechanism of ... its corresponding request) {id:4} logged in!!!!!...
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php 富文本编辑器上传多张图片存数据库,怎么读取
用富文本编辑器上传3张图片,存到mysql数据库是这样的格式 <img src="/uploads/image/20200709/6d553a425cdc4bd8b577019101d31e97.png" alt="" /><img ... 要写一个接口读取出来这三张图,问下大家这样怎么操作? 谢谢了...
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Golang文本去重的代码优化问题
不好意思啊,第一次学Golang,写了个文本去重来练习,文本内容大概75万行,用go test看了下最后的去重时间,需要17's,想知道还有哪里可以优化的 代码如下 package distinct import ... (t *testing.T) { DistinctFile("result.txt", "out.txt") } 希望师傅们能指点一二...
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spring-cloud 使用gateway配置路由的问题??
注册中心使用Eureka 这里有一台登录微服务 登录接口地址:http://127.0.0.1:7500/auth/login 同时也注册到了Eureka了 然后gateway网关也注册到了注 ... Found", "message": "No?message?available", "path": "/gateService/auth/login" }...
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vue项目如何实现导航栏中的前进和后退都要刷新页面?
vue项目如何实现导航栏中的前进和后退都要刷新页面? 现在前进和后退页面并没有重新加载...
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Jan 27, 2021
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reporting services - Deploy a Report Builder report automatically
I have created a report in Report Builder (*.rdl). I know that I can deploy that report in SSRS on the test server ... a report is to deploy it when commiting the report to git....
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reporting
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vue-element-admin中created和activated的版本区别
这几天遇到一个关于activated生命周期的问题,现在搞的我有点迷 首先用的是vue-element-admin的两个不同的版本,其中vue一个是2.6.1一个是2.6.10 这两个版本里面关于activated我发现竟然不一样,不知道是 ... 行的,但是在后期的版本中F5刷新页面竟然不执行了,刷新页面只执行created,是不是这样?有大佬知道吗??...
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react-native android绝对定位时点击事件失效,help 0.0!!
当在android上设置了绝对定位元素后,超出父元素的内容点击事件无效,设置zindex无用...
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react echarts地图 formatter怎么添加事件
一直报...
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react
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html - Need help to modify custom dropdown and change its value
I have ceated a custom dropdown like below: enter image description here Now on click on listed options, main value should change and ... ="#">Something else here</a> </div> </div>...
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Jan 27, 2021
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html
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422
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android - DevicePolicyManager.reboot() stuck in an infinite restarting loop
After calling dpm.reboot() on an Android API 30 emulator, it seems to be stuck in some restart state. Each time ... in dpm.reboot(). Any insights would be greatly appreciated!...
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Jan 27, 2021
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android
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517
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微信支付 + redis + 商品超卖问题
微信小程序中的商品存在超卖问题? 原方案: 用户调起微信支付->输入支付密码->服务器验证支付成功->扣减库存 场景1: 用户调起微信支付模态框(长时间停留页面,并不输入支付密码) 场景2: 前面输入支付密码后还未验证支付是否成功,这 ... 有什么更好的方案防止超卖? 交流一下 我觉得重点是尽量让用户付款后可以有库存扣减 -> 如果没有实时反馈->阻断支付...
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微信支付
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242
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java - Type mismatch. Required: FirebaseRecyclerAdapter<ChatObject, ChatVoiceViewHolders>? Found:
I am porting an Java Code to Kotlin and It's throwing an Type Miss matched error. Java Code : private FirebaseRecyclerAdapter< ... I am doing wrong? how can I solve this? thanks....
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java
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182
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Eventloop 是什么?是为了解决什么问题而设计的?
1.请问下,Eventloop 是什么?是为了解决什么问题而设计的? 2.下面是Python 版本的Eventloop 实现示例,这里的Eventloop和Javascript中的Eventloop要解决的问 ... callback() self._last_time = now def __del__(self): self._impl.close()...
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Eventloop
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365
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关于三次握手的一些问题
在网上看到了一面试题:输入一个网站后发生了什么,想问一下关于传输层的三次握手的问题: (1)浏览器通过HTTP解析URL生成请求报文是在三次握手之后还是在其之前? (2)三次握手里ACK,SYN,序号Seq包的传输也是按照: 客户端传输层-> ... 换数据了,这里说的数据是指单单指的是TCP 报文段吗?还是说逐层往下最后封装成的数据帧?还是说是其他的东西?...
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javascript - Sequelize - Please install mysql2 package manually
I have created a separate helper library to work with databases. I am then importing this library in my project. ... want the library to be configurable from the root application....
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javascript
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307
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朋友位都用什么软件设计app,说说原因及优缺点,感谢
目前在开发app,设计方面是硬伤,但不得不整,想跟朋友们取取经,谢谢了...
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python - Convert Google Sheets export CSV response to dict
I have a use-case where I want to fetch a Google Sheet and turn it into a dict where the first row of the sheet is used ... is used as keys, it is not about how to fetch the data....
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element-ui 的el-checkbox-group 到底该如何绑定v-model数据?
现在有一个问卷调查页面的需求,选择了element-ui的el-checkbox-group来处理多选题,在有多个多选题的情况下,如何绑定v-model数据才能获取到 问题id=>对应问题下选中的选项 question.vue页面 <template ... ,4],//1是问题id,[3,4]是选中的多选选项 2:[7,8] } element 官网的示例...
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209
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How to get integer from varchar data type using mysql function?
I want to write a function which return plan code when I give input plan title But my function not working ... = Actvi_SubPln_Title; RETURN ATY_CODE; END //; DELIMITER ;...
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How
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mac 2020 终端默认zsh,但配置文件内容太少
默认 zsh 配置文件太少 还不支持 git 补全 设置主题啥的都没有 那么,原来的配置文件 在哪里呢?...
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mac
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