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Static fields on a null reference in Java
...ss rather than the objects of this class. The following code attempts to access a static field on a null reference.
5 Ans...
阿里双11大型项目管理怎么玩？ - 项目管理 - 清泛网 - 专注C/C++及内核技术
...控制范围需要进一步上升风险到业务域，于是将所属项目修改为“末端板块”，同时保持该风险关联到自身项目以及依赖的其他团队项目“物流宝板块”，并抄送提醒相关人员。末端业务域PM继续将风险通过关联上升到菜鸟天灾...
How can I merge two commits into one if I already started rebase?
...e command on your todo list’s very first line to squash will always produce this error as there is nothing for the first commit to squash into.
The Fix
First get back to where you started with
$ git rebase --abort
Say your history is
$ git log --pretty=oneline
a931ac7c808e2471b22b5bd20f0cad0...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...隔符的值，默认是空格或tab。我们可以通过-F命令行选项修改FS的值。如$ awk -F: '{print $1,$5}' test将打印以冒号为分隔符的第一，第五列的内容。
可以同时使用多个域分隔符，这时应该把分隔符写成放到方括号中，如$awk -F'[:\t]' '{p...
Convert between UIImage and Base64 string
Does anyone know how to convert a UIImage to a Base64 string, and then reverse it?
24 Answers
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区块链技术到底是什么鬼，为何被疯炒？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...：如A要转账一笔钱给B，需经过银行O进行验证、对账，再修改A、B的账户，将钱划给B。
(图5：传统货币交易模式)
而基于区块链技术的比特币交易模式则剔除了银行作为中心数据库的角色，每个比特币用户的电脑都是一个节点...
How do I put double quotes in a string in vba?
I want to insert an if statement in a cell through vba which includes double quotes.
5 Answers
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tcp端口状态ESTABLISHED、TIME_WAIT、CLOSE_WAIT 、SYN_RECV等详解 - C/C++...
...s的快速回收，默认为0，表示关闭。
net.ipv4.tcp_fin_timeout 修改系統默认的 TIMEOUT 时间
查看系统TCP连接资源命令
netstat
netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'
一般情况下，系统的socket资源默认5000个。（非官方...
How to convert a Base64 string into a Bitmap image to show it in a ImageView?
I have a Base64 String that represents a BitMap image.
6 Answers
6
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Visual Studio SP1 error: silverlight_sdk.msi is unavailable
... it worked fine. Then I used the web platform installer to install the SQL CE Compact 4, which I assume installed the full SP1 after (this installation took over 12 hours, so I canceled it). The web platform installer told me that SP1 and Silverlight 4 was installed.
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