大约有 2,900 项符合查询结果(耗时:0.0308秒) [XML]

https://www.tsingfun.com/it/tech/1318.html 

不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...号和别名的对应关系在linux下放在/etc/iproute2/rt_tables这个文件里,一般0编号 的table对应的别名为upspec,255编号对应的别名为local,254和253对应的别名分别为main和default,我们通常用route命令配置和查看的路由表信息为别名 为main的...
https://www.tsingfun.com/ilife/life/1034.html 

故乡的冬日 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...玉树、点点闪着亮光的朵朵白梅,急急找来纸笔,欲临摹保存,只可惜每次都是手拙心笨,难及天工神笔之千万分之一,随着冬阳暖暖地升起,我的“画作”也就半途而废了。 极其败兴地踏出屋门,抬腿之际却一下子被屋檐下...
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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...务器保持了大量CLOSE_WAIT状态 因为linux分配给一个用户的文件句柄是有限的(可以参考:http://blog.csdn.net/shootyou/article/details/6579139),而TIME_WAIT和CLOSE_WAIT两种状态如果一直被保持,那么意味着对应数目的通道就一直被占着,而且...
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Filter rows which contain a certain string

...ics # http://stat-computing.org/dataexpo/2009/the-data.html df <- read_csv("Downloads/2008.csv") print(dim(df)) # [1] 7009728 29 benchmark( "str_detect" = {df %>% filter(str_detect(Dest, 'MCO|BWI'))}, "grepl" = {df %>% filter(grepl('MCO|BWI', Dest))}, replications = 10, colum...
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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...动通知Nginx,并把相应的标识(比如一个自增的整数ID)保存在Nginx共享内存中,接下来,Nginx不会再去轮询数据库,而是改为轮询本地的共享内存,通过比对标识来判断是否有新消息,如果有便给客户端发出响应。 注:服务端...
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线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,GetDlgItem()等常用函数返回的都是临时对象,不能在程序中保存以在以后使用,而应该随用随取.注意MSDN中的说明:The returned pointer may be temporary and should not be stored for later use. 下面是断言源码: void CWnd::AssertValid(...
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汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...用所有的内存空间,8086设定了四个段寄存器,专门用来保存段地址: CS(Code Segment):代码段寄存器 DS(Data Segment):数据段寄存器 SS(Stack Segment):堆栈段寄存器 ES(Extra Segment):附加段寄存器 特殊功能的寄存器: I...
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How to enter quotes in a Java string?

... This tiny java method will help you produce standard CSV text of a specific column. public static String getStandardizedCsv(String columnText){ //contains line feed ? boolean containsLineFeed = false; if(columnText.contains("\n")){ containsLineFeed = true;...
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Cannot use Server.MapPath

....Combine(HttpContext.Current.Server.MapPath("/UploadedFiles/") + "FileName.csv")); var csvWriter = new CsvWriter(textWriter, System.Globalization.CultureInfo.CurrentCulture); csvWriter.WriteRecords(classVM); share ...
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Why do I get a SyntaxError for a Unicode escape in my file path?

... f = open('C:\\Users\\Pooja\\Desktop\\trolldata.csv') Use '\\' for python program in Python version 3 and above.. Error will be resolved.. share | improve this answer ...