大约有 8,000 项符合查询结果(耗时:0.0178秒) [XML]

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Split comma-separated strings in a column into separate rows

...me number of strings. i.e. data.table(id= "X21", a = "chr1;chr1;chr1", b="123;133;134",c="234;254;268") becoming data.table(id = c("X21","X21",X21"), a=c("chr1","chr1","chr1"), b=c("123","133","134"), c=c("234","254","268")) ? – Reilstein Jan 19 '19 at 1:39 ...
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Python argparse mutual exclusive group

... answered Dec 28 '14 at 10:38 Oz123Oz123 21.4k2222 gold badges9494 silver badges163163 bronze badges ...
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Best way to represent a fraction in Java?

...on("Unknown format '" + s + "'"); } // this translates 23.123e5 to 25,123 / 1000 * 10^5 = 2,512,300 / 1 (GCD) String whole = m.group(1); String decimal = m.group(2); String exponent = m.group(3); String n = whole; // 23.123 => 23123 ...
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整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...

...程《phpcms_v9与ucenter整合屏幕录制资料》,介绍了详细的操作步骤,简单易懂。 原理:phpcms中的phpsso类似于康盛的ucenter软件,也是一个整合多系统同步通信的解决方案,不过这里以ucenter为主(服务端),phpsso为辅助(客户端...
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What is the meaning and difference between subject, user and principal?

...clarify "User - subset of principal"? If John is the subject and "account #123" is his principal, the user is who? Are there two John's? Since Genus > Species > Individual is increasingly specific, John (user) should be more specific than John (subject). Or am I missing something? ...
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static const vs #define

...uld be very like to see a comparison table. – Unknown123 Apr 25 '19 at 3:49 2 ...
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开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明 - 开源 & Github - 清泛网 ...

... connect.py脚本登录自启动,部署文档后面有说明, 下面的操作为试了方便测试 # cd /opt/jumpserver # python connect.py 输入p或P 查看所有授权主机 输入g或G 查看授权主机组 输入g或G加上组的ID,查看该组下的主机 输入e 可以进入...
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网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...BD DA”。 我们知道,“春”和“节”的GB2312编码(我的操作系统“Windows XP”中文版的默认编码)分别是“B4 BA”和“BD DA”。因此,IE实际上就是将查询字符串,以GB2312编码的格式发送出去。 Firefox的处理方法,略有不同。它...
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Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...法执行,因为所有的线程都很忙。 在为时间可能很长的操作使用合用的线程时要小心。如果程序必须等待诸如 I/O 完成这样的某个资源,那么请指定最长的等待时间,以及随后是失效还是将任务重新排队以便稍后执行。这样做...
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How to handle AccessViolationException

...rogram { static void InvokeCse() { IntPtr ptr = new IntPtr(123); System.Runtime.InteropServices.Marshal.StructureToPtr(123, ptr, true); } private static void ExecInThisDomain() { try { var o = new BoundaryLessExecHelper(); ...