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748 views

1 answer

我打算建立一个可以远程访问的数据库。看了网上的教程，基本也都清楚了，只有一点很不理解：大部分的教程最后的连接命令都是直接输入一个mongo数据库所在的ip（比如123.45.67.89）+端口（27017）。但是如果机器所在的是一个局域网，那怎么能定位到这台电脑呢。尤其是如果局域网有多台电脑的话。还请大牛解答！...

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

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547 views

1 answer

Use gatsby-image's tracedSVG as the actual picture

TL;DR: Is it possible to use Gatsby's rendered tracedSVG from childImageSharp as the actual picture on your website? ... file and the images and the placeholders failed to load....

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

0 votes

524 views

1 answer

VUE接入这个jQuery效果好接入吗？

首页登录页面领导让接入这个水波纹效果这个应该是用jQuery写的不知道用在vue框架中好接入这个效果吗？用了vue以后就没用过jQuery了效果...

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

0 votes

588 views

1 answer

java - Is there a way to asign a custom ringtone to a specific contact on Android 10?

The question says it all, i have a function to which i pass a phone number and the function asigns ... official documentation that mentions changes in Contacts services or similar....

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

0 votes

1.1k views

1 answer

logging - Changing root logger level in submodule python

How can I change root logger level in it's submodule #main.py logging.basicConfig(filename=filename,format='%( ... .py if event: logger.setLevel(logging.CRITICAL)#root logger...

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

0 votes

847 views

1 answer

开发的付费软件需设置付款二维码，用微信还是支付宝划算？

本人有企业资质，要开通收款二维码动态生成来向软件用户收费最近了解的是支付宝每月要付固定费用，好像是1万每月这个对于创业初期的人来说承受不起啊而开通微信收款是要先开通公众号，我选择服务号是要收企业认证费300元，但微信文档暂时 ... 总而言之如果开通收款码后每月要固定付费而且都是几千上万，压力山大！是否可以考虑银行卡快捷支付的方式？这个成本如何？...

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

0 votes

920 views

1 answer

TP6的关联模型，怎么获取主模型的数据？

比如主模型中有2个字段['user_id', 'card_part_id']要与关联模型中的2个字段['user_id', 'card_part_id']相对应，这个该怎么写？我在主模型中是 public function userRate() ... css'])->paginate($limit); 哪位大佬帮忙下，或者我是走了歪路，这样写是错的？？...

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

0 votes

887 views

1 answer

iconfont彩色图标兼容性或渲染效果问题？

之前听说iconfont彩色图标在IE浏览器不兼容或效果不理想，可是我测了IE11，并没有发现异常，在官网有如下说明信息，兼容性差渲染性能一般，这怎么理解？ font-class与symbol对比： * 支持多色图标了，不再受单色限制 * ... 样式 * 兼容性较差，支持 IE9+，及现代浏览器 * 浏览器渲染 SVG 的性能一般，还不如 png ...

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

0 votes

1.3k views

1 answer

leetcode关于mysql中having报错

这是leetcode中刷到的题，但是论坛里问了一遍，这个问题一直没能解决，所以想请教一下为什么这里用having是错的题目如下：我的答案是这样的： select p ... and u.purchase_date<=p.end_date 报错信息： Unknown column 'purchase_date' in 'having clause'...

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

0 votes

1.6k views

1 answer

ontology - How can I make new classes in Protege have several rdfs:label annotations?

I am working on an ontology in Protege (version 5.5.0) that needs to display in several languages. I use rdfs:label ... ? I currently do it manually, but that's less than ideal....

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

0 votes

2.0k views

1 answer

C语言程序设计题目

这一道题如何理解呢...

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

0 votes

2.8k views

1 answer

vue条件渲染问题

### 问题描述页面加载时，会先出现v-else下的结果，然后才出现v-if下的结果 ### 相关代码 <el-image class="miner-img" :src="'https://cloud.dxpool.com/' + ... 错误信息又是什么？希望在v-if="minerInfo.img_url"为真时，直接输出图片，不经过v-else...

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

0 votes

3.4k views

1 answer

mac os如何用命令行修改系统分辨率，或者如何用代码修改系统分辨率？

问题出现的环境背景及自己尝试过哪些方法现在想用electron开发一个桌面应用可以设置macos的系统分辨率，想到的是用node调用applesctrpt脚本，但是会弹出可视化界面，想使用node运行shell命令来 ... .log("success"); } }); } execute('cscreen -d 64 -x 1680 -y 1050');...

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

0 votes

3.6k views

1 answer

java - Log4j alternative for Cross-platform Logging system

I'am trying to set up a logging system to collect logs from projects developed with different languges ( Python and Java ... have a solution for this ? Any alternative to try ?...

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

0 votes

3.6k views

1 answer

问个nginx 配置里面的域名跳转301 问题

问个nginx 配置里面的域名跳转301 问题想把www.qqq.com 全部永久301重定向到 www.aaa.com 下面是我的nginx里面的配置我下面的代码不成功不知道正确 ... server_name www.qqq.com qqq.com; rewrite ^(.*) https://www.aaa.com$1 permanent; }...

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

0 votes

3.6k views

1 answer

php mysql 如何获取连续出现3次的相同字符的数据

如下表格: ID PID CONTENT 1 1 OK 2 1 ERROR 3 1 ERROR 4 1 ERROR 5 1 OK 6 2 ERROR 7 2 OK 8 2 ERROR 9 2 OK 10 2 ERROR 11 2 OK 如何找出pid为1，content连续3次为error的数据...

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

0 votes

4.0k views

1 answer

antd 的 Cascader，搜索结果为空时会自动选中当前活动节点

复现案例 https://codesandbox.io/s/antd... 当异步加载数据，且加载返回结果为空数组时第一次鼠标移入到二级节点是正常的第二次鼠标移入到二级节点出错，会自动选中节点并关闭下拉框结果加载过一次数据之 ... 否为空，始终保证只有用户点击选中时才触发值更新这个是否时 Cascader 的 Bug，或者我的例子写的有问题？...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.5k views

1 answer

google cloud platform - GCP Startup script is not executed

For a GCP VM (RHEL-7) I have configured (added to custom metadata section on GCP console under startup-script key) ... startup scripts. Does anyone have any idea how to fix that?...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.0k views

1 answer

关于【redis5设计与源码分析】第八章Stream的不解

首先创建一个消息流：xadd mystream * name hb age 20 根据这条指令，再参照图8-1，可以很容易明白【* name hb age 20】是一条消息比如ID1 *是redis自行生成的消息ID，具有唯一性 ... 方，是entry里面吗？因为我认为master ertry存储的公共field 希望各位前辈能给我解答一下，谢谢 ...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.8k views

1 answer

有没有vue的store模式的demo呢？

有没有vue的store模式的demo呢？官网的例子看不懂： https://cn.vuejs.org/v2/guide......

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.4k views

1 answer

reactjs - React Native iOS Appstore review - crash on launch firebase.crashlytics,MachException

Appstore has rejected my application because it crashes on launch. If I am testing the app in iPhone 11 ... same exception in crashlog, even after removing crashlytics package....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.9k views

1 answer

requests用IP直连时无法用代理怎么办？

代码如下，运行报错404，但是去掉代理proxies参数就可以正常访问了 proxies = { 'http': 'http://' + "{}:{}".format(proxy['IP'], ... res = requests.get("http://61.61.61.61:80", headers=header, proxies=proxies)...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.2k views

1 answer

python asyncio - as_completed identifying coroutie objects

I'm using asyncio to await set of coroutines in following way: # let's assume we have fn defined and that ... of coros_objects Can I somehow identify what coro just yielded result?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.3k views

1 answer

java - Spring boot - automatically activate profile based on operating system

Let's say I have a spring profile that is specific to a particular operating system: spring: profiles: mac cloud: zookeeper ... be active if os.name contains "Darwin"? Any ideas?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.7k views

1 answer

c# - Code First The ForeignKeyAttribute on property '' on type '' is not valid. Entity Framework

I am trying to create code first approach a user table which have different foreign keys,but I it gives me error with this ... get; set; } } Can somebody help me solve this issue?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.2k views

1 answer

fiddler ios 已信任证书，为什么无法抓取https，显示 443?

fiddler 一样的配置安卓和安卓模拟机抓包都正常 IOS下载证书后，安装了描述文件DO_NOT_TRUST_FiddlerRoot ,并且在证书信任设置里面勾选了 DO_NOT_TRUST_FiddlerRoot 为什么IOS抓包会显示443，不显示HTTPS内容呢？安卓都正常的...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.0k views

1 answer

如果取消异步重复请求问题？

先发起第一个请求： /api/getTotal?type=all 然后再发起请求： /api/getTotal?type=1 因为第二次请求快，而第一次请求非常慢，导致页面上的数据会先显示第二次返回的数据，然后又变成第一次请求的数据。请问这种情况要怎么处理比较好呢？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.0k views

1 answer

load data from text with pandas with a two characters as separator

I'm trying to load data with pandas from a txt table. The column separator was defined as "|@" as you can see in ... /Art_492/Encabezado.txt', sep='|@', index_col=0).astype(str)...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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