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  • The embedded engineering website that‘s got your back.2022-01-28 18:33:17

    mbedded.ninja https://blog.mbedded.ninja/ Happy New Year 2022 1. Overview First of, happy new year! 2. Statistics This year I decided to present the stats a little differently and made the infographic below. 正在上传…重新上传取消 Figure 1. Blog statistics

  • but repository ‘maven‘ was added by build file ‘build.gradle‘2022-01-18 13:06:07

    在build.gradle中添加maven { url 'https://jitpack.io' }报错: but repository 'maven' was added by build file 'build.gradle'。。。 处理方法是不要添加在build.gradle里面,而是settings.gradle: dependencyResolutionManagement { repositoriesMode.set(Repo

  • arcgis遇到的那些error2021-12-27 09:07:05

    1、执行合并处理时出现error001156:输入oid0失败,无法将值写入某个字段 解决方法:A value could not be added to the output field; for example, text values cannot be added to numeric fields, and text values cannot be added to text fields if the values are longer

  • Re-enable “Externally added files can be added to Git“ notification in PyCharm2021-12-19 21:30:21

    Q:There's a popup that occurs in PyCharm to let you manually add externally-created files to VCS. This is very convenient for e.g. Django migrations, which I often forget to commit otherwise. Unfortunately, I accidentally clicked the "Don't

  • k8s - DaemonSet2021-10-18 23:03:29

    DaemonSet A DaemonSet ensures that all (or some) Nodes run a copy of a Pod. As nodes are added to the cluster, Pods are added to them. As nodes are removed from the cluster, those Pods are garbage collected. Deleting a DaemonSet will clean up the Pods it

  • python 挂钩函数2021-09-14 20:33:54

    挂钩函数在 sort 中的使用1 根据挂钩函数的返回值进行排序 names = ['Socrates', 'Archimedes', 'Plato', 'Aristotle'] names.sort(key=lambda x: len(x)) print(names) 输出 ['Plato', 'Socrates', 'Aristotle', 'Archi

  • django与python版本对应关系2021-07-15 17:03:23

    Django与python版本 Django 1.11版本兼容Python 2.7、3.4、3.5、3.6、3.7(added in 1.11.17)# 1.11.5 python<=3.6 Django 2.0版本兼容Python 3.4、3.5、3.6、3.7 Django 2.1、2.2版本兼容Python 3.5、3.6、3.7 Django 3.0版本兼容Python 3.6、3.7、3.8 # https://pypi.org/proj

  • MySQL 8.0 Keywords and Reserved Words2021-06-30 11:32:07

    A ACCESSIBLE (R) ACCOUNT ACTION ACTIVE; added in 8.0.14 (nonreserved) ADD (R) ADMIN; became nonreserved in 8.0.12 AFTER AGAINST AGGREGATE ALGORITHM ALL (R) ALTER (R) ALWAYS ANALYSE; removed in 8.0.1 ANALYZE (R) AND (R) ANY ARRAY; add

  • 2021-06-292021-06-29 10:02:48

    obs-websocket 4.9.1 protocol reference General Introduction Messages are exchanged between the client and the server as JSON objects. This protocol is based on the original OBS Remote protocol created by Bill Hamilton, with new commands specific to OBS S

  • 解决 There are no resources that can be added or removed from the server2021-06-18 11:55:11

    网上下载了一个项目,在eclipse中部署时,加载项目到tomcat中项目名称无法显示,报出There are no resources that can be added or removed from the server 这个是因为下载下来的项目没有eclipse的相关配置文件,eclipse不知道这是一个什么项目。 解决方法: 1、进入configure Build Path

  • [官方文档]MySQL 5.7关键字和保留字2021-06-06 14:01:47

    以下内容来自MySQL5.7参考手册 电脑浏览器建议使用“Ctrl + F”搜索 MySQL 5.7 Keywords and Reserved Words The following list shows the keywords and reserved words in MySQL 5.7, along with changes to individual words from version to version.Reserved keywords

  • Oracle分区表之MODIFY clause added to the ALTER TABLE SQL Statement. (From 12.2)2021-04-12 17:30:56

    Online Conversion of a Non-Partitioned Table to a Partitioned Table in Oracle Database 12c Release 2 (12.2) In previous releases you could partition a non-partitioned table using EXCHANGE PARTITION or DBMS_REDEFINITION in an "almost online" mann

  • node02: Warning: Permanently added ‘node02,192.168.139.129‘ (ECDSA) to the list of known hosts.2021-04-06 14:03:14

    删除know_hosts文件,删除.ssh文件夹 重新生成.ssh,并且重新启动hadoop

  • php按数组中的时间字段分组2021-03-15 16:03:31

    $data = $db->select('am_table_main', '*',['ORDER'=>['added_time'=>'DESC']]); $new_data = []; foreach($data as $key => &$val){ $val['month'] = mb_substr($val['added_time

  • elementui中的table组件单元格可以输入2021-01-30 16:33:54

    其实利用插槽可以解决 点击编辑的时候 elementui组件中的 table里单元格可以输入 并且获取一行的数据 <el-table :header-cell-style="{ 'text-align': 'center', background: '#FAFAFA', 'font-weight': '40

  • python中while循环2021-01-02 14:32:13

      1、 >>> a = {} >>> while a != "quit": a = input("please input an incredient:") if a != "quit": print(f"{a} will be added!!") please input an incredient:apple apple will

  • Ubuntu 20.04 开机执行自定义脚本2020-10-19 18:00:35

    转自https://www.cnblogs.com/Deskew/p/13798595.html   #1、切换至root,建立rc-local.service文件 vim /etc/systemd/system/rc-local.service  #2、在里面写入如下内容 [Unit] Description=/etc/rc.local Compatibility ConditionPathExists=/etc/rc.local [Service

  • Android监听系统截屏的坑2020-04-23 19:58:43

    最近产品同事反映,部分手机截屏图片无法弹出,排查了下是监听系统截屏时添加进系统相册的时间出了问题(读出来的照片并不是最新的一张照片,而是一张很老的照片,从而导致了监听截屏操作失败) 1 cursor = mContext.getContentResolver().query( 2 contentUri, 3

  • added mass -VIV2020-01-20 14:52:58

      Added mass Table of Contents 1. added mass–ma 1.1. Basic 1.2. definition 1.3. added mass vs reduced velocity 1.4. time series of added mass 1.5. Digest 1.5.1. 2017 qinbi 1.5.2. 2004 Williamson, Annu. Rev. Fluid Mech. 1.5.3. 2000 Vikestad, JFS 1.

  • Python3 相同长度的列表List对应元素相加2019-11-22 19:02:26

    我们假设有三个长度相同的列表如下: uppercase_letters = ['A','B','C','D'] lowercase_letters = ['a','b','c','d'] digit = [1,2,3,4]   方法一:利用for循环,三个列表对应位置的元素直接相加。 added_list = [] # 列表相加的最后结果 f

  • MySQL:触发器的使用2019-11-08 19:03:30

    触发器在想要某条语句在事件发生时自动执行时使用,如每订购一个产品都从库存数量中减去订购的数量。支持触发器的语句有delete,update,insert。 触发器需要的4条信息: 唯一的触发器名, 触发器关联的表, 触发器响应的活动, 触发器何时执行。 下面仍然举一个简单的例子说明触发器的使用。

  • How to know that a new data is been added to HDFS?2019-09-09 19:07:56

    原文链接:https://stackoverflow.com/questions/14934079/how-to-know-that-a-new-data-is-been-added-to-hdfs I am implementing a Notification system based on publish subscribe model to notify about the availability of data as it arrives/

  • android8.1 为AudioManager AudioService 添加底层JNI接口2019-09-05 18:03:54

    驱动的同事在声卡的驱动层上做了一个功能, 需要提供一个接口开放给上层调用.  每一步都有系统原来的代码作为参考, 添加起来也不算太难, 但是就是太麻烦了, 所以记录一下 1驱动:  android\hardware\libhardware\include\hardware\audio.h 的audio_hw_device 结构体添加声明:

  • Dialog显示引起的问题 Activity has leaked window DecorView@5704632[] that was originally added here2019-09-05 10:00:23

    原文链接:https://blog.csdn.net/github_27263697/article/details/78296538 https://blog.csdn.net/github_27263697/article/details/78296538

  • onboard procossor2019-09-01 18:01:16

    http://www.esa.int/Our_Activities/Space_Engineering_Technology/Onboard_Computer_and_Data_Handling/Microprocessors The LEON2 is based on an AMBA AHB/APB bus architecture, so new modules can easily be added to extend its functionality. Advanced Microcontrol

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