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解决xrdp登陆一直黑屏的问题：显示通道被占用 - 操作系统(内核) - 清泛网 -...
...发现显示通道204启动超时，其他Xserver可能已占用该通道
ps -elf|grep vnc
kill {PID of vnc}
通道启动超时的日志如下：
[ERROR] X server for display 204 startup timeout
[ERROR] another Xserver might already be active on display 204 - see log
常见的Xserver就xrdp...
怎么通过app inventor接收mqtt平台推送的长消息 - App Inventor 2 中文网 -...
...的base64编码的图片，可以是使用拓展解码还原成图片：https://www.fun123.cn/reference/ ... A%E5%AA%92%E4%BD%93我想制作一个门禁系统，把摄像头采集的图片通过MQTT平台发送给app inventor我的手机现在可以接收到短消息，这个BASE64编码数据直接...
How to fix Git error: object file is empty?
...p ran out of battery during a git operation. Boo.
I didn't have any backups. (N.B. Ubuntu One is not a backup solution for git; it will helpfully overwrite your sane repository with your corrupted one.)
To the git wizards, if this was a bad way to fix it, please leave a comment. It did, however, ...
一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术
一文讲透区块链技术原理区块链是什么？区块链技术最初是由一位化名中本聪的人为比特币（一种数字货币）而设计出的一种特殊的数据库技术，它基于密码学中的椭圆曲线...
区块链是什么？
“区块链”技术最初是由一位化...
knitr Markdown highlighting in Emacs?
...ocal Variables: -->
... enjoy a dramatic change in your productivity.
PS
Do not overlook last elisp line. It will allow to save markdown properly. Otherwise, when you reopen your doc, you'll have unpleasant surprises.
A note to Windows users
Skip this if you are a Linux guy, but, despite the...
How to stop and restart memcached server?
...ice memcached restart
You can see if Memcache is currently runing:
sudo ps -e | grep memcached
And you can check the TCP or UDP ports if something (e.g. Memcache) is listening to it:
netstat -ap | grep TheChosenPort#
netstat -ap | grep 11211
For some Linuxes you need to change your commands ...
how to delete all commit history in github? [duplicate]
... master
Finally, force update your repository
git push -f origin master
PS: this will not keep your old commit history around
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How to run an application as “run as administrator” from the command prompt? [closed]
...unas.exe /savecred /user:administrator "%sysdrive%\testScripts\testscript1.ps1"
It saves the password the first time and never asks again. Maybe when you change the administrator password you will be prompted again.
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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...种循环称为轮询（polling），由于所有的进程都共有一个最原始的父进程init，其pid为1，所以每隔1秒查询一次父进程状态，直至父进程终止。
以上由fork函数创建的进程是具有亲缘关系的进程，即父子进程或兄弟进程。其原理实...
C++ wait for user input [duplicate]
... <iostream>).
Use system("pause") (need #include <iostream>).
PS: This method will also print Press any key to continue . . . on the screen. (seems perfect choice for you :))
Edit: As discussed here, There is no completely portable solution for this. Question 19.1 of the comp.lang.c ...