大约有 2,260 项符合查询结果(耗时:0.0212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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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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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(); ...
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What are JavaScript's builtin strings?

...l. I'm a bit torn in selected a "correct" answer, as both yours and @alpha123's look extremely obfuscated and cleverly hide the original intention. – Jason Sperske Apr 12 '13 at 20:13 ...
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Undo a merge by pull request?

...om.com> Date: Mon Apr 29 06:12:38 2013 -0700 Merge pull request #123 from john/foo_and_bar Add foo and bar commit a507888e9fcc9e08b658c0b25414d1aeb1eef45e Author: John Doe <john@doe.com> Date: Mon Apr 29 12:13:29 2013 +0000 Add bar commit 470ee0f407198057d5cb1d6427bb837...
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What are best practices for REST nested resources?

...ompanies/departments/employees/{empId} or to get all employees in company 123 you have GET /companies/123/departments/employees/ Keeping the path hierarchical makes it more apparent how you can get to the intermediate resources to filter/create/modify and helps with discoverability in my opinion. ...
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

...换为文本: 数字转换成文字,收件人收到四位数字“1234”。 列表被传输为 JSON 格式。接收方收到字符串 [1234, "Ulli"] 。 但是,某些接收方需要某些字节序列,例如字节 123(十六进制 7B)而不是字符串“123”。如果打开二...
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How to open multiple pull requests on GitHub

...ing issue (something you can't do from the web UI): $ git pull-request -i 123 [ attached pull request to issue #123 ] share | improve this answer | follow | ...