它山之石

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它山之石，可以攻玉的意思是什么？

最近关于其他山石可以攻玉的话题。相信很多朋友都很有兴趣了解一下，因为这个话题最近也很热门。既然大家都想了解其他山石，可以攻玉，我也在网上搜集了一些其他山石和攻玉的相关信息，大家分享一下。[详细]

2022-12-27 12:21 分类：问答
Why isn't `"repeat" * 3` the same as `3 * "repeat"` in Ruby?

When I type this: puts \'repeat\' * 3 I get: >> repeat repeat repeat But it\'s not working if I do this:[详细]

2022-12-24 21:08 分类：问答
Help to choose NoSQL database for project

There is a table: doc_id(integer)-value(integer) Approximate 100.000 doc_id and 27.000.000 rows. Majority query on this table - searching documents similar to current document:[详细]

2022-12-24 09:11 分类：问答
What is the importance of invoking base class constructor explicitly?

class A { A() { } }; class B : public A { B() : A() { } }; Why do we need to call the base class\'s constructor explicitly insi开发者_StackOverflow中文版de B\'s constructor? Isn\'t it implicit?It i[详细]

2022-12-20 18:13 分类：问答
How can I encrypt a user's password in Silverlight?

I have a Silverlight 3 app which connects to a server to perform various act开发者_高级运维ions.My users log in using Forms Authentication but the actions they request are run on the server using the[详细]

2022-12-19 11:30 分类：问答
sas软件多少钱啊？sas医学统计软件价格？

高震 2022-05-26 07:27 开发者_运维技巧正版分企业版和个人版，价格都不是个人能承受的，两年前个人版大概四万左右，企业版大概十多万。[详细]

2022-12-19 09:33 分类：问答
Does Mercurial create a server process when you create a local repository?

Mercurial\'s website says about creating a project this way: Create a project and commit $ hg init (project-directory)[详细]

2022-12-17 10:14 分类：问答